CN110961626B - Method for screening crack-free formula components of 3D printed aluminum alloy - Google Patents
Method for screening crack-free formula components of 3D printed aluminum alloy Download PDFInfo
- Publication number
- CN110961626B CN110961626B CN201911190866.2A CN201911190866A CN110961626B CN 110961626 B CN110961626 B CN 110961626B CN 201911190866 A CN201911190866 A CN 201911190866A CN 110961626 B CN110961626 B CN 110961626B
- Authority
- CN
- China
- Prior art keywords
- alloy
- crack
- formula
- screening
- printing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F10/00—Additive manufacturing of workpieces or articles from metallic powder
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F10/00—Additive manufacturing of workpieces or articles from metallic powder
- B22F10/20—Direct sintering or melting
- B22F10/28—Powder bed fusion, e.g. selective laser melting [SLM] or electron beam melting [EBM]
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F10/00—Additive manufacturing of workpieces or articles from metallic powder
- B22F10/80—Data acquisition or data processing
- B22F10/85—Data acquisition or data processing for controlling or regulating additive manufacturing processes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B33—ADDITIVE MANUFACTURING TECHNOLOGY
- B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
- B33Y50/00—Data acquisition or data processing for additive manufacturing
- B33Y50/02—Data acquisition or data processing for additive manufacturing for controlling or regulating additive manufacturing processes
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F17/00—Digital computing or data processing equipment or methods, specially adapted for specific functions
- G06F17/10—Complex mathematical operations
- G06F17/18—Complex mathematical operations for evaluating statistical data, e.g. average values, frequency distributions, probability functions, regression analysis
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/25—Process efficiency
Landscapes
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Physics & Mathematics (AREA)
- Plasma & Fusion (AREA)
- Data Mining & Analysis (AREA)
- General Physics & Mathematics (AREA)
- Mathematical Optimization (AREA)
- Theoretical Computer Science (AREA)
- Mathematical Physics (AREA)
- Computational Mathematics (AREA)
- Pure & Applied Mathematics (AREA)
- Mathematical Analysis (AREA)
- Life Sciences & Earth Sciences (AREA)
- Operations Research (AREA)
- Probability & Statistics with Applications (AREA)
- Evolutionary Biology (AREA)
- Algebra (AREA)
- Bioinformatics & Computational Biology (AREA)
- Databases & Information Systems (AREA)
- Software Systems (AREA)
- General Engineering & Computer Science (AREA)
- Bioinformatics & Cheminformatics (AREA)
- Investigating And Analyzing Materials By Characteristic Methods (AREA)
Abstract
The invention discloses a method for screening crack-free formula components of 3D printed aluminum alloy, which comprises the following steps ofIncludes such steps as obtaining solidification data from phase diagram, calculating the relation between crack sensitivity factor and the content of alloy elements added to the formula, and calculating the crack sensitivity factor | Δ T/Δ (fs)1/2| a maximum value, a larger value indicates that the formulation is more susceptible to cracking after 3D printing. The method has the advantages of saving raw materials, being short in time and short in operation flow, predicting whether the alloy cracks after 3D printing only through calculation, verifying that the prediction result is consistent with the implementation result through the actual 3D printing experiment, solving the technical problem that whether the alloy cracks can be verified through a large number of experiments in the prior art, and being high in feasibility.
Description
Technical Field
The invention belongs to the technical field of 3D printing, and particularly relates to a method for screening crack-free formula components of 3D printed aluminum alloy.
Background
SLM is a powder bed laser 3D printing method that uses a laser beam to scan a powder layer by layer to produce a part with extremely high cooling and solidification rates during production. The application potential of powder bed laser 3D printing is mainly in the fabrication of complex structures and functional parts. Although the SLM printing process for the aluminum alloy has a great development prospect, the SLM processing process is a local heating process, so that a sample has a high temperature gradient, a large amount of residual stress is generated, the sensitivity of the material to deformation is increased, and even cracks can be generated. Except for aluminum-silicon series alloy, the SLM printing aluminum alloy almost generates hot cracks from a 2xxx series to a 7xxx series, so that the performance of the SLM printing aluminum alloy is greatly reduced and is far lower than that of a traditional casting and forging piece, the light and high-strength characteristics of the aluminum alloy cannot be exerted, and the 3D printing aluminum alloy is seriously hindered in the fields of spaceflight, rail transit, military and the like.
Elemental composition of aluminum alloyIs critical to influence whether the 3D printing cracks. The problems faced at present are: (1) at present, the research reports that the documents of the crack-free aluminum alloy are less, and the composition interval of the crack-free aluminum alloy is very short. (2) If one wants to get from Al-x1M1-x2M2-x3M3-x4M4...xnMn(M ═ Cu, Mg, Si, Ni, Mn, Fe, Co, Ti, Cr, Zn, V, Zr, Sc, Er, Zr, and Ce) determines the alloy composition which does not crack, and thus the problems of long cycle, high cost and the like in the experimental process of gas atomization powder preparation are faced. Therefore, a method for rapidly determining the composition of an alloy that does not crack and is economical and low in cost has been sought.
Disclosure of Invention
This section is for the purpose of summarizing some aspects of embodiments of the invention and to briefly introduce some preferred embodiments. In this section, as well as in the abstract and the title of the invention of this application, simplifications or omissions may be made to avoid obscuring the purpose of the section, the abstract and the title, and such simplifications or omissions are not intended to limit the scope of the invention.
As one aspect of the invention, the invention provides a method for screening crack-free formula components of 3D printing aluminum alloy.
In order to solve the technical problems, the invention provides the following technical scheme: a method for screening crack-free formula components of 3D printed aluminum alloy comprises the following steps,
obtaining solidification data through a phase diagram, calculating a relation between a crack sensitivity factor and the content of alloy elements added in the formula components, and calculating the crack sensitivity factor | Delta T/Delta (fs)1/2| a maximum value, a larger value indicates that the formulation is more susceptible to cracking after 3D printing.
As a preferred scheme of the method for screening the crack-free formula components of the 3D printing aluminum alloy, the method comprises the following steps: the calculation formula is as follows:
according to the aboveCalculating formula to obtain crack sensitivity factor | dT/d (fs)1/2| where k is the equilibrium segregation coefficient, mLIs the slope of the liquidus line, C, in the phase diagram0The mass percentage of alloy elements added in the alloy before solidification and fs are the mass fraction of solid phase in the solidified alloy.
As a preferred scheme of the method for screening the crack-free formula components of the 3D printing aluminum alloy, the method comprises the following steps: crack sensitivity factor lower than 5x103The alloy is a low crack sensitivity factor at the temperature of DEG C, which indicates that the components of the alloy formula can not generate cracks after 3D printing.
As a preferred scheme of the method for screening the crack-free formula components of the 3D printing aluminum alloy, the method comprises the following steps: the 3D printing comprises Selective Laser Melting (SLM).
As a preferred scheme of the method for screening the crack-free formula components of the 3D printing aluminum alloy, the method comprises the following steps: the aluminum alloy comprises the formula components of Al-x1M1-x2M2-x3M3-x4M4...xnMnWherein M represents an element component added to the aluminum alloy, and x1～xnRepresents the mass percentage content of each M component.
As a preferred scheme of the method for screening the crack-free formula components of the 3D printing aluminum alloy, the method comprises the following steps: m is one or more of Cu, Mg, Si, Ni, Mn, Fe, Co, Ti, Cr, Zn, V, Zr, Sc, Er, Zr and Ce.
As a preferred scheme of the method for screening the crack-free formula components of the 3D printing aluminum alloy, the method comprises the following steps: the aluminum alloy includes an aluminum-zinc alloy.
As a preferred scheme of the method for screening the crack-free formula components of the 3D printing aluminum alloy, the method comprises the following steps: in the aluminum-zinc alloy, the addition amount of zinc is 2 wt.%, and the balance is Al.
The invention has the beneficial effects that: the method has the advantages of saving raw materials, being short in time and short in operation flow, predicting whether the alloy cracks after 3D printing only through calculation, verifying that the prediction result is consistent with the implementation result through the actual 3D printing experiment, solving the technical problem that whether the alloy cracks can be verified through a large number of experiments in the prior art, and being high in feasibility.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise. Wherein:
FIG. 1 is a phase diagram of an Al-Zn binary alloy.
FIG. 2 is a SEM alloy photograph of the Al-2Zn alloy of example 1 after 3D printing.
FIG. 3 is a SEM alloy photograph of the Al-3Zn alloy of example 2 after 3D printing.
FIG. 4 is a SEM alloy photograph of the Al-5Zn alloy of example 3 after 3D printing.
FIG. 5 is a drawing of a tensile specimen subjected to a tensile property test.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with examples are described in detail below.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, but the present invention may be practiced in other ways than those specifically described and will be readily apparent to those of ordinary skill in the art without departing from the spirit of the present invention, and therefore the present invention is not limited to the specific embodiments disclosed below.
Furthermore, reference herein to "one embodiment" or "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one implementation of the invention. The appearances of the phrase "in one embodiment" in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments.
Example 1:
the method for screening the crack-free formula components of the 3D printed aluminum alloy comprises the following steps:
obtaining solidification data through a phase diagram, obtaining a relation between a crack sensitive factor and solute content through a correlation formula, and finally substituting different solute contents to calculate the crack sensitive factor | Delta T/Delta (fs)1/2| the maximum value, the larger the value the more easily cracks, the crack sensitivity factor being lower than 5x103The alloy is low in crack sensitivity factor at the temperature of DEG C, and shows that the alloy with the composition does not generate cracks.
The specific steps are as follows, taking Al and Zn as the alloy element formula components as an example:
1) according to an Al-2Zn alloy phase diagram (the addition amount of Zn is 2 wt.%, and the balance is Al), relevant solidification data are obtained in the phase diagram, and the phase diagram is shown in a figure 1;
2) the formula of the crack sensitivity factor is obtained by formula derivation calculation and is as follows:
calculating crack sensitivity factor | dT/d (fs)1/2| where k is the equilibrium segregation coefficient, mLIs the slope of the liquidus line, C, in the phase diagram0The mass percentages of the alloying elements added to the alloy before solidification (the addition amount of Zn in the example is 2 wt.%), fs is the mass fraction of the solid phase in the solidified alloy, and k is 0.87, f iss＝0.99、C00.02 and mL-3186, giving a crack sensitivity factor of 3000 ℃ below 5000 ℃, indicating that the Al-2Zn alloy does not crack.
To corroborate the results of the above formula calculations, we used a Selective Laser Melting (SLM) with optimized experimental parameters: the Al-2Zn alloy is printed at a power of 300W, a scanning speed of 800mm/s, a layer thickness of 50 microns and a scanning interval of 120 microns, cracks are found not to appear in a microstructure (figure 2), an experimental result of the Al-2Zn alloy accords with a calculation result of the formula, and then a tensile property test is carried out according to a tensile sample shown in figure 5, and the tensile strength of the Al-2Zn alloy reaches 463 MPa. The method can quickly judge whether the aluminum alloy cracks or not through formula calculation before experimental verification.
Example 2:
the method for screening the crack-free formula components of the 3D printed aluminum alloy comprises the following steps:
obtaining solidification data through a phase diagram, obtaining a relation between a crack sensitive factor and solute content through a correlation formula, and finally substituting different solute contents to calculate the crack sensitive factor | Delta T/Delta (fs)1/2| the maximum value, the larger the value the more easily cracks, the crack sensitivity factor being lower than 5x103The alloy is low in crack sensitivity factor at the temperature of DEG C, and shows that the alloy with the composition does not generate cracks.
The specific steps are as follows, taking Al and Zn as the alloy element formula components as an example:
1) according to an Al-3Zn alloy phase diagram (the addition amount of Zn is 3 wt.%, and the balance is Al), relevant solidification data are obtained in the phase diagram, and the phase diagram is shown in a figure 1;
2) the formula of the crack sensitivity factor is obtained by formula derivation calculation and is as follows:
calculating crack sensitivity factor | dT/d (fs)1/2| where k is the equilibrium segregation coefficient, mLIs the slope of the liquidus line, C, in the phase diagram0The mass percentages of the alloying elements added to the alloy before solidification (3 wt.% of Zn added in the present example) and fs are the mass fractions of the solid phase in the solidified alloy, and k is 0.87 and f is obtaineds＝0.99、C00.03 and mL-2832, giving a crack sensitivity factor of 4000 ℃ below 5000 ℃, indicating that the Al-3Zn alloy does not crack.
To corroborate the results of numerical calculations, we used a selective laser melting method (SLM) according to optimized experimental parameters: the power is 300W, the scanning speed is 800mm/s, the layer thickness is 50 mu m, the scanning distance is 120 mu m, the Al-3Zn alloy is printed, no crack is found in the microstructure (figure 3), and the experimental result is consistent with the calculation result. After that, the tensile properties of the tensile specimens shown in FIG. 5 were measured, and it was found that the tensile strength reached 448 MPa.
Example 3:
the method for screening the crack-free formula components of the 3D printed aluminum alloy comprises the following steps:
obtaining solidification data through a phase diagram, obtaining a relation between a crack sensitive factor and solute content through a correlation formula, and finally substituting different solute contents to calculate the crack sensitive factor | Delta T/Delta (fs)1/2| the maximum value, the larger the value the more easily cracks, the crack sensitivity factor being lower than 5x103The alloy is low in crack sensitivity factor at the temperature of DEG C, and shows that the alloy with the composition does not generate cracks.
The specific steps are as follows, taking Al and Zn as the alloy element formula components as an example:
1) according to an Al-5Zn alloy phase diagram (the addition amount of Zn is 5 wt.%, and the balance is Al), relevant solidification data are obtained in the phase diagram, and the phase diagram is shown in a figure 1;
2) the formula of the crack sensitivity factor is obtained by formula derivation calculation and is as follows:
calculating crack sensitivity factor | dT/d (fs)1/2| where k is the equilibrium segregation coefficient, mLIs the slope of the liquidus line, C, in the phase diagram0The mass percentages of the alloying elements added to the alloy before solidification (5 wt.% of Zn added in the present example) and fs are the mass fractions of the solid phase in the solidified alloy, and k is 0.87 and f is obtaineds＝0.99、C00.05 and mLAnd 2549, thereby obtaining the Al-5Zn alloy with the crack sensitivity factor of 6000 ℃ and above 5000 ℃, wherein the Al-5Zn alloy can generate cracks.
To verify the results of the numerical calculations, we printed the Al-5Zn alloy using a selective laser melting method (SLM) according to the optimized experimental parameters (power 300W, scan rate 800mm/s, layer thickness 50 μm, scan spacing 120 μm) and found that cracks occurred in its microstructure (fig. 4), the experimental results of which were consistent with the calculated results. After that, the tensile properties of the tensile specimens shown in FIG. 5 were measured, and the tensile strength was found to be 380 MPa.
Example 4 (verification):
according to the same method as the embodiment 1, whether the aluminum-magnesium and aluminum-copper alloy generates cracks after being subjected to the 3D printing by the selective laser melting method is predicted by using the calculation formula of the embodiment 1, and the results are shown in the following table:
the multiple groups of repeated experiments prove that the calculation result of the novel method for screening the components of the crack-free formula of the 3D printed aluminum alloy is consistent with the actual 3D printing verification result, and the calculation formula of the method is used for almost completely and accurately predicting whether the crack is generated in the aluminum alloy element formula after the actual 3D printing.
It should be noted that in the actual 3D printing, the generation of cracks is mainly related to the alloy element formula, and is secondly influenced by the 3D printing method and the printing parameters, and the technical formula of the present invention is mainly predicted according to the element formula itself. The present invention finds that if the alloy element formula is calculated by prediction, a crack-free workpiece can be theoretically printed, and then a crack-free workpiece can be obtained by adjusting a certain 3D printing parameter, and on the contrary, the present invention finds that if the alloy formula is not good, even if the printing parameter is adjusted, a crack-free workpiece cannot be obtained, for example, in embodiment 3, although the optimized printing parameter of embodiment 1 is also used, the printed workpiece still has cracks, which is consistent with the prediction result. The calculation formula of the invention can predict whether the binary aluminum alloy element formula has cracks after actual 3D printing.
It should be noted that the above-mentioned embodiments are only for illustrating the technical solutions of the present invention and not for limiting, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions may be made on the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, which should be covered by the claims of the present invention.
Claims (7)
1. A method for screening crack-free formula components of 3D printed aluminum alloy is characterized by comprising the following steps: comprises the steps of (a) preparing a mixture of a plurality of raw materials,
obtaining solidification data through a phase diagram, calculating a relation between a crack sensitivity factor and the content of alloy elements added in the formula components, and calculating the crack sensitivity factor | dT/d (fs)1/2The maximum value of | is larger, the larger the value is, the more easily cracks are generated after 3D printing of the formula components; wherein the content of the first and second substances,
the formula for calculating the crack sensitivity factor is as follows:
according to the calculation formula, calculating to obtain a crack sensitivity factor | dT/d (fs)1/2| where k is the equilibrium segregation coefficient, mLIs the slope of the liquidus line, C, in the phase diagram0The mass percentage of alloy elements added in the alloy before solidification and fs are the mass fraction of solid phase in the solidified alloy.
2. The method of screening crack-free formulation components for 3D-printed aluminum alloys of claim 1, wherein: crack sensitivity factor lower than 5x103The alloy is a low crack sensitivity factor at the temperature of DEG C, which indicates that the components of the alloy formula can not generate cracks after 3D printing.
3. The method of screening crack-free formulation components of 3D printed aluminum alloys according to claim 1 or 2, wherein: the 3D printing is a Selective Laser Melting (SLM).
4. As claimed in claim 1 or2 the method for screening the crack-free formula components of the 3D printed aluminum alloy is characterized in that: the aluminum alloy comprises the formula components of Al-x1M1-x2M2-x3M3-x4M4 ...xnMnWherein M represents an element component added to the aluminum alloy, and x1～xnRepresents the mass percentage content of each M component.
5. The method of screening crack-free formulation components of 3D printed aluminum alloys as claimed in claim 4, wherein: m is one or more of Cu, Mg, Si, Ni, Mn, Fe, Co, Ti, Cr, Zn, V, Zr, Sc, Er and Ce.
6. The method of screening crack-free formulation components of 3D printed aluminum alloys as claimed in claim 5, wherein: the aluminum alloy is an aluminum-zinc alloy.
7. The method of screening crack-free formulation components of 3D printed aluminum alloys of claim 6, wherein: in the aluminum-zinc alloy, the addition amount of zinc is 2 wt.%, and the balance is Al.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911190866.2A CN110961626B (en) | 2019-11-28 | 2019-11-28 | Method for screening crack-free formula components of 3D printed aluminum alloy |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911190866.2A CN110961626B (en) | 2019-11-28 | 2019-11-28 | Method for screening crack-free formula components of 3D printed aluminum alloy |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110961626A CN110961626A (en) | 2020-04-07 |
| CN110961626B true CN110961626B (en) | 2021-07-20 |
Family
ID=70031989
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911190866.2A Active CN110961626B (en) | 2019-11-28 | 2019-11-28 | Method for screening crack-free formula components of 3D printed aluminum alloy |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110961626B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113020585B (en) * | 2021-03-01 | 2022-04-05 | 南京理工大学 | Low-melting-point multi-component alloy additive for laser additive manufacturing of aluminum alloy |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109063322A (en) * | 2018-07-27 | 2018-12-21 | 哈尔滨理工大学 | A kind of method of Shrinkage Porosity defect numerical prediction |
| CN109234690A (en) * | 2018-11-23 | 2019-01-18 | 西安工业大学 | A kind of high-entropy alloy target and its preparation process containing aluminium and boron element |
| CN110274926A (en) * | 2019-06-12 | 2019-09-24 | 武汉大学 | A method of evaluation T/P23 steel reheat cracking susceptibility |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10786878B2 (en) * | 2017-07-24 | 2020-09-29 | General Electric Company | Method of welding with buttering |
-
2019
- 2019-11-28 CN CN201911190866.2A patent/CN110961626B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109063322A (en) * | 2018-07-27 | 2018-12-21 | 哈尔滨理工大学 | A kind of method of Shrinkage Porosity defect numerical prediction |
| CN109234690A (en) * | 2018-11-23 | 2019-01-18 | 西安工业大学 | A kind of high-entropy alloy target and its preparation process containing aluminium and boron element |
| CN110274926A (en) * | 2019-06-12 | 2019-09-24 | 武汉大学 | A method of evaluation T/P23 steel reheat cracking susceptibility |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110961626A (en) | 2020-04-07 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Galy et al. | Main defects observed in aluminum alloy parts produced by SLM: From causes to consequences | |
| Mishra et al. | Friction stir processing | |
| Kempen et al. | Mechanical properties of AlSi10Mg produced by selective laser melting | |
| Kulkarni et al. | Effect of fly ash hybrid reinforcement on mechanical property and density of aluminium 356 alloy | |
| Fayomi et al. | Effect of alloying element on the integrity and functionality of aluminium-based alloy | |
| CN104073699A (en) | Al-Si-Cu-Mg cast aluminum alloy and preparation method thereof | |
| Li et al. | Investigation of solidification and precipitation behavior of Si-modified 7075 aluminum alloy fabricated by laser-based powder bed fusion | |
| Chen et al. | Effects of reheating duration on the microstructure and tensile properties of in situ core–shell-structured particle-reinforced A356 composites fabricated via powder thixoforming | |
| CN104674092B (en) | A kind of Mg Al Zn system heat resistance magnesium alloy containing Sm and preparation method thereof | |
| WO2019055623A1 (en) | Aluminum alloy products, and methods of making the same | |
| Wang et al. | Microstructure and ratcheting behavior of additive manufactured 4043 aluminum alloy | |
| WO2019055630A1 (en) | Additively manufactured alloy products and methods of making the same | |
| CN110961626B (en) | Method for screening crack-free formula components of 3D printed aluminum alloy | |
| Li et al. | Microstructure and properties of Al–7Si–0.6 Mg alloys with different Ti contents deposited by wire arc additive manufacturing | |
| Tian et al. | Research on the mechanical properties and hot deformation behaviors of spray-deposited 7034 Al alloy processed by forward extrusion | |
| WO2019165136A1 (en) | Aluminum alloy products and methods of making the same | |
| EP4269641A1 (en) | Powdered material with high heat conductivity | |
| Tian et al. | A Continuous Extrusion‐Shear (ES) Composite Process for Significantly Improving the Metallurgical Bonding and Textures Regulations and Grain Refinements of Al/Mg Bimetallic Composite Rods | |
| Appa Rao et al. | Porosity formation studies in high pressure die castings of Al-9Si-3Cu alloy based on Taguchi method | |
| CN112813310B (en) | High-strength Al-Fe-Sc alloy capable of being used for laser additive manufacturing | |
| CA3162766C (en) | Powder aluminium material | |
| Sinha et al. | Wire arc additive manufacturing of Al-Cu alloy-grain refinement, strengthening and thermal simulation | |
| Ceschini et al. | The influence of cooling rate on microstructure, tensile and fatigue behavior of heat-treated Al-Si-Cu-Mg alloys | |
| Bogdanoff | Development of aluminium-silicon alloys with improved properties at elevated temperature | |
| Wang et al. | A novel laser cladding AlMgZnCuErZr alloy: Material genetic design, strengthening andtoughening mechanisms |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |