CN105671411A - Carbide-reinforced iron base composite material and powder metallurgy in-situ synthesis method thereof - Google Patents
Carbide-reinforced iron base composite material and powder metallurgy in-situ synthesis method thereof Download PDFInfo
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- CN105671411A CN105671411A CN201610066803.6A CN201610066803A CN105671411A CN 105671411 A CN105671411 A CN 105671411A CN 201610066803 A CN201610066803 A CN 201610066803A CN 105671411 A CN105671411 A CN 105671411A
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- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 title claims abstract description 95
- 239000002131 composite material Substances 0.000 title claims abstract description 46
- 229910052742 iron Inorganic materials 0.000 title claims abstract description 40
- 238000011065 in-situ storage Methods 0.000 title claims abstract description 35
- 238000004663 powder metallurgy Methods 0.000 title claims abstract description 23
- 238000001308 synthesis method Methods 0.000 title abstract 2
- 239000000843 powder Substances 0.000 claims abstract description 41
- 239000002245 particle Substances 0.000 claims abstract description 28
- 238000000034 method Methods 0.000 claims abstract description 20
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 13
- 239000000463 material Substances 0.000 claims abstract description 13
- 229910052799 carbon Inorganic materials 0.000 claims abstract description 12
- 229910052751 metal Inorganic materials 0.000 claims abstract description 12
- 239000011159 matrix material Substances 0.000 claims abstract description 6
- 238000005728 strengthening Methods 0.000 claims abstract description 6
- 238000002156 mixing Methods 0.000 claims description 25
- 230000002708 enhancing effect Effects 0.000 claims description 20
- 238000000498 ball milling Methods 0.000 claims description 18
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 17
- 238000006243 chemical reaction Methods 0.000 claims description 15
- 238000010189 synthetic method Methods 0.000 claims description 14
- 238000004137 mechanical activation Methods 0.000 claims description 13
- 239000010936 titanium Substances 0.000 claims description 13
- 238000001994 activation Methods 0.000 claims description 11
- 230000004913 activation Effects 0.000 claims description 11
- 239000000203 mixture Substances 0.000 claims description 11
- 238000000227 grinding Methods 0.000 claims description 10
- 238000003825 pressing Methods 0.000 claims description 9
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims description 7
- 229910052719 titanium Inorganic materials 0.000 claims description 7
- 238000012545 processing Methods 0.000 claims description 6
- 238000002360 preparation method Methods 0.000 claims description 5
- 238000001291 vacuum drying Methods 0.000 claims description 5
- 238000005056 compaction Methods 0.000 claims description 4
- 238000009792 diffusion process Methods 0.000 claims description 4
- 239000000428 dust Substances 0.000 claims description 4
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 claims description 2
- QCWXUUIWCKQGHC-UHFFFAOYSA-N Zirconium Chemical compound [Zr] QCWXUUIWCKQGHC-UHFFFAOYSA-N 0.000 claims description 2
- 229910052804 chromium Inorganic materials 0.000 claims description 2
- 239000011651 chromium Substances 0.000 claims description 2
- 238000004049 embossing Methods 0.000 claims description 2
- 239000011812 mixed powder Substances 0.000 claims description 2
- 229910052758 niobium Inorganic materials 0.000 claims description 2
- 239000010955 niobium Substances 0.000 claims description 2
- GUCVJGMIXFAOAE-UHFFFAOYSA-N niobium atom Chemical compound [Nb] GUCVJGMIXFAOAE-UHFFFAOYSA-N 0.000 claims description 2
- 229910052761 rare earth metal Inorganic materials 0.000 claims description 2
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 claims description 2
- 229910052721 tungsten Inorganic materials 0.000 claims description 2
- 239000010937 tungsten Substances 0.000 claims description 2
- 229910052720 vanadium Inorganic materials 0.000 claims description 2
- LEONUFNNVUYDNQ-UHFFFAOYSA-N vanadium atom Chemical compound [V] LEONUFNNVUYDNQ-UHFFFAOYSA-N 0.000 claims description 2
- 229910052726 zirconium Inorganic materials 0.000 claims description 2
- 239000002994 raw material Substances 0.000 abstract description 16
- 230000000694 effects Effects 0.000 abstract description 10
- 230000015572 biosynthetic process Effects 0.000 abstract description 3
- 238000003786 synthesis reaction Methods 0.000 abstract description 2
- 239000006185 dispersion Substances 0.000 abstract 2
- 230000002787 reinforcement Effects 0.000 abstract 2
- 150000001875 compounds Chemical class 0.000 abstract 1
- 239000002184 metal Substances 0.000 abstract 1
- 239000008187 granular material Substances 0.000 description 10
- 238000005245 sintering Methods 0.000 description 7
- 230000033228 biological regulation Effects 0.000 description 6
- MTPVUVINMAGMJL-UHFFFAOYSA-N trimethyl(1,1,2,2,2-pentafluoroethyl)silane Chemical compound C[Si](C)(C)C(F)(F)C(F)(F)F MTPVUVINMAGMJL-UHFFFAOYSA-N 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 4
- 238000001816 cooling Methods 0.000 description 3
- 230000014759 maintenance of location Effects 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- UONOETXJSWQNOL-UHFFFAOYSA-N tungsten carbide Chemical compound [W+]#[C-] UONOETXJSWQNOL-UHFFFAOYSA-N 0.000 description 2
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000003213 activating effect Effects 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 150000004767 nitrides Chemical class 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
- 239000000376 reactant Substances 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C33/00—Making ferrous alloys
- C22C33/02—Making ferrous alloys by powder metallurgy
- C22C33/0207—Using a mixture of prealloyed powders or a master alloy
-
- B22F1/0003—
-
- 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
- B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
- B22F3/02—Compacting only
-
- 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
- B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
- B22F3/10—Sintering only
- B22F3/1003—Use of special medium during sintering, e.g. sintering aid
- B22F3/1007—Atmosphere
-
- 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
- B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
- B22F3/10—Sintering only
- B22F3/1039—Sintering only by reaction
-
- 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
- B22F2201/00—Treatment under specific atmosphere
- B22F2201/20—Use of vacuum
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Powder Metallurgy (AREA)
Abstract
The invention discloses a carbide-reinforced iron base composite material and a powder metallurgy in-situ synthesis method thereof. A carbide is a compound formed by carbon and other metal elements, and is formed in situ in an iron base material as a reinforcement phase. Initial raw materials for preparing the carbide-reinforced iron base composite material are carbon powder, iron powder and other metal element powder; the dispersion speeds of the other metal elements and the carbon element in matrix iron have the order difference of magnitude; and the particle size and the morphology of the reinforcement phase are adjusted and controlled in the powder metallurgy in-situ synthesis process. The method can effectively adjust and control the morphology and the particle size of the carbide, is simple in process, and is easy to control. Through adjustment and control of the particle size and the morphology of the carbide, the carbide-reinforced iron base composite material with fine and uniform reinforce phase particles and distributed in a dispersed manner can be obtained; and the dispersion strengthening effect of the carbide on an iron basal body can be fully exerted, so that the strength and the hardness of the composite material are largely improved.
Description
Technical field
The present invention relates to a kind of carbide and strengthen iron base composite material and powder metallurgy in-situ synthetic method thereof, belong to powder metallurgy situ synthesis techniques field.
Background technology
The high speed development of modern industry in the urgent need to high temperature, at a high speed, the tool and mould that works under the complicated service condition such as wear-resisting and structural member, such as fast mill roll ring, the roll of directive wheel, hot-work die etc., existing ferrous materials is difficult to meet service condition needs. The performances such as particle enhanced steel iron base composite material is hard due to the high-strength height with the superior toughness of metal material, cold and hot working, solderability and ceramic particle, wear-resisting, become the key areas of researcher research and development. Hard-phase particles can be oxide, nitride and carbide, wherein titanium carbide, have high intensity, high-modulus, high-melting-point and with the features such as iron-based body good wettability, be the more satisfactory enhancing phase of particle reinforced iron matrix composites.
Powder metallurgy reaction in-situ is prepared by a kind of technology combined by powder metallurgy with reaction in-situ, has the advantage of two kinds of technology concurrently. Being that reaction in-situ generates owing to strengthening phase granule, resulting materials has that enhancing phase/basal body interface is clean, interface quality is good, structural homogenity high, and this synthetic technology becomes prepares the method that particle reinforced iron matrix composites is ideal. Up to the present, to powder metallurgy reaction in-situ strengthening the pattern of phase granule and the formation of particle diameter and controlling research seldom. It is true that the intrinsic properties of granule phase, shared volume fraction, distribution, particle diameter and pattern, all composite materials property is had key effect. Especially strengthening the particle diameter of phase granule and pattern, except being likely to be subject to the impact of outside experiment condition (such as sintering temperature, sintering time etc.), in reaction in-situ, it can be produced vital impact by the particle diameter of reactant and pattern. Distribution disperse, particle diameter is tiny, the enhancing phase granule of pattern subglobular, and its dispersion-strengthened effect plays ultimate attainment, it is thus achieved that the intensity of composite and hardness be greatly improved.
In prior art, the carbide particle of fabricated in situ strengthens iron base composite material, the particle diameter and the pattern that strengthen phase carbide particle cannot obtain effective control, the enhancing phase carbide particle obtained does not have regularity, there may come a time when to produce nucleocapsid structure, there may come a time when that particle diameter is very big, such as tens microns to hundreds of microns not etc., dispersion-strengthened effect does not highlight; Sometimes can obtaining somewhat tiny enhancing phase titanium carbide granule, such as 30-50 micron, but granule-morphology is irregular, is distributed also uneven, and dispersion-strengthened effect can not well embody.In order to obtain better dispersion-strengthened effect, research worker goes for the enhancing phase carbide particle of more tiny (mean diameter less than 10 microns), pattern subglobular, had also tried multiple method, but effect is not ideal.
Summary of the invention
The present invention specifically addresses above-mentioned technical problem, a kind of carbide is provided to strengthen the powder metallurgy in-situ synthetic method of iron base composite material, the carbide making acquisition strengthen iron base composite material enhancing phase carbide particle is more tiny, pattern subglobular, dispersion-strengthened action gives full play to.
In order to achieve the above object, the technical scheme that the present invention takes is:
A kind of carbide strengthens the powder metallurgy in-situ synthetic method of iron base composite material, carbide is for strengthening phase, described carbide comprises carbon and other metallic elements, the initial feed preparing carbide enhancing iron base composite material is carbon dust, iron powder and other elemental metalpowders, it is characterized in that, other metallic elements described and carbon diffusion velocity in iron matrix have magnitude differences, are adjusted the grain diameter of described enhancing phase and pattern controlling in powder metallurgy fabricated in situ process.
Further, described regulable control refers to and carries out mechanical activation process just for other elemental metalpowders described.
Further, described mechanical activation processes and refers to before batch mixing, and other elemental metalpowders described in initial feed are carried out ball milling activation processing, to obtain other elemental metalpowders after activating.
Further, described ball milling activation processing includes parameter: ratio of grinding media to material is 10: 1, and other elemental metalpowder ethanol ratios are for 2g: 1ml, and ball milling speed is 250-300r/min, and Ball-milling Time is 45-50h.
Further, comprise the steps:
1) mechanical activation of other elemental metalpowders processes, it is thus achieved that other elemental metalpowders after activation;
2) batch mixing: using the starting powder as composite of other elemental metalpowders after carbon dust, iron powder and described activation, it is that 2-5% carries out described starting powder preparation by carbide weight/mass percentage composition, ball mill carries out wet mixing batch mixing, ratio of grinding media to material is 3: 1, starting powder ethanol ratio is for 2g: 1ml, rotating speed is 200-250r/min, and mixing time is 4-6h.
3) by by step 2) mixed-powder that obtains is dried in vacuum drying oven, and baking temperature is 80-100 DEG C.
4) by by step 3) dried powder that obtains carries out embossing or cold isostatic compaction.
5) by by step 4) sample that presses carries out vacuum or high temperature insostatic pressing (HIP) (HIP) sinters reaction in-situ, and obtain carbide and strengthen iron base composite material composite.
Further, other metallic elements described include one or more in titanium, chromium, vanadium, niobium, tungsten, zirconium or rare earth element.
Further, after regulable control, described enhancing phase carbide particle mean diameter is less than 5 μm, and granule-morphology is almost spherical, is distributed disperse uniform in iron-based body.
The present invention strengthens carbide enhancing iron base composite material prepared by the powder metallurgy in-situ synthetic method of iron base composite material according to above-mentioned a kind of carbide, it is characterized in that: composition and each composition quality percentage composition are, C:0.80～1.20%, other metallic elements described: 3.50～4.50%, surplus is Fe.
The fundamental basis of the present invention allows for carbon and other metallic elements, and in iron matrix, the greatest differences of diffusion velocity is (such as; at identical temperature, carbon differs two orders of magnitude with the diffusion coefficient of titanium); strengthen phase granule and the particle diameter of other elemental metalpowders of raw material and pattern can be shown certain tissue heredity, utilize this heritability can realize the regulation and control of the particle diameter to titanium carbide granule and pattern.By other elemental metalpowders in raw material are carried out mechanical activation process, i.e. ball-milling treatment, other elemental metalpowders in raw material are made to refine, and heat stability is lower, better activity function is provided for follow-up reaction in-situ, in course of reaction, autonomous growth becomes particle diameter tiny in position, the enhancing phase granule of almost spherical, effectively alleviate stress to concentrate, reduce the driving force of crack extesion, thus ensureing toughness to greatest extent while increasing intensity, the dispersion-strengthened effect making carbide particle gives full play to, intensity and the hardness of carbide enhancing iron base composite material all effectively improve.
The invention have the benefit that a kind of carbide provided by the invention strengthens the powder metallurgy in-situ synthetic method of iron base composite material, operation is simply easily controlled, flow process is short, the conventional chemical treatment process numerous and diverse without chemical surface plating etc., contaminative is high, the enhancing phase granule obtained is tiny, pattern uniformly, in almost spherical, dispersion-strengthened effect plays fully, under guaranteeing sufficiently ductile premise, substantially increase carbide and strengthen the mechanical properties such as the intensity of iron base composite material and hardness.
Accompanying drawing explanation
((a), for before regulation and control, (b) is for after regulation and control) composite microscopic appearance contrast before and after the regulation and control of Fig. 1, Fig. 2 respectively example 1,2.
Detailed description of the invention
Example 1
Take raw material Ti powder, C powder and Fe powder, carry out following steps:
1) Ti powder mechanical activation processes: by following parameter, raw material titanium valve being carried out ball milling activation processing: ratio of grinding media to material is 10: 1, titanium valve ethanol ratio is for 2g: 1ml, and ball milling speed is 250r/min, and Ball-milling Time is 45h.
2) batch mixing: raw material C powder, Fe powder and the Ti powder processed through mechanical activation are mixed the starting powder prepared as composite, it is 3% carry out powder preparation by titanium carbide weight/mass percentage composition, planetary ball mill carries out wet mixing batch mixing, ratio of grinding media to material is 3: 1, raw material alcohol ratio is for 2g: 1ml, rotating speed is 200r/min, and mixing time is 4h.
3) by step 2) batch mixing be dried in vacuum drying oven, baking temperature is 80 DEG C.
4) by step 3) dried powder carries out die forming, and pressing pressure is 100MPa.
5) by step 4) sample that presses carries out vacuum-sintering reaction in-situ, and programming rate is 10 DEG C/min, and sintering temperature is 1400～1500 DEG C, and temperature retention time is 2h, and furnace cooling obtains the Fe (TiC) of vacuum-sintering reaction in-situpComposite.
Composite property contrast before and after the regulation and control of table 1 example 1
Example 2
Take raw material Ti powder, C powder and Fe powder, carry out following steps:
1) Ti powder mechanical activation processes: by following parameter, raw material titanium valve being carried out ball milling activation processing: ratio of grinding media to material is 10: 1, titanium valve ethanol ratio is for 2g: 1ml, and ball milling speed is 300r/min, and Ball-milling Time is 50h.
2) batch mixing: raw material C powder, Fe powder and the Ti powder processed through mechanical activation are mixed the starting powder prepared as composite, it is 5% carry out powder preparation by titanium carbide weight/mass percentage composition, planetary ball mill carries out wet mixing batch mixing, ratio of grinding media to material is 3: 1, raw material alcohol ratio is for 2g: 1ml, rotating speed is 250r/min, and mixing time is 6h.
3) by step 2) batch mixing be dried in vacuum drying oven, baking temperature is 100 DEG C.
4) by step 3) dried powder carries out cold isostatic compaction, and pressing pressure is 200MPa.
5) by step 4) sample that presses carries out high temperature insostatic pressing (HIP) (HIP) and sinters reaction in-situ, programming rate is 10 DEG C/min, sintering temperature is 1200～1300 DEG C, temperature retention time is 4h, and furnace cooling obtains high temperature insostatic pressing (HIP) (HIP) and sinters Fe (TiC) composite of reaction in-situ.
Composite property contrast before and after the regulation and control of table 2 example 2
Example 3
Take raw material W powder, C powder and Fe powder, carry out following steps:
1) W powder mechanical activation processes: by following parameter, raw material W powder being carried out ball milling activation processing: ratio of grinding media to material is 10: 1, W powder ethanol ratio is for 2g: 1ml, and ball milling speed is 300r/min, and Ball-milling Time is 50h.
2) batch mixing: raw material C powder, Fe powder and the W powder processed through mechanical activation are mixed the starting powder prepared as composite, it is 4% carry out powder preparation by tungsten carbide weight/mass percentage composition, planetary ball mill carries out wet mixing batch mixing, ratio of grinding media to material is 3: 1, raw material alcohol ratio is for 2g: 1ml, rotating speed is 250r/min, and mixing time is 6h.
3) by step 2) batch mixing be dried in vacuum drying oven, baking temperature is 100 DEG C.
4) by step 3) dried powder carries out cold isostatic compaction, and pressing pressure is 200MPa.
5) by step 4) sample that presses carries out high temperature insostatic pressing (HIP) (HIP) and sinters reaction in-situ, programming rate is 10 DEG C/min, sintering temperature is 1200～1300 DEG C, temperature retention time is 5h, and furnace cooling obtains high temperature insostatic pressing (HIP) (HIP) and sinters the tungsten carbide enhancing iron base composite material of reaction in-situ.
Claims (8)
1. the powder metallurgy in-situ synthetic method of a carbide enhancing iron base composite material, carbide is for strengthening phase, described carbide comprises carbon and other metallic elements, the initial feed preparing carbide enhancing iron base composite material is carbon dust, iron powder and other elemental metalpowders, it is characterized in that, other metallic elements described and carbon diffusion velocity in iron matrix have magnitude differences, are adjusted the grain diameter of described enhancing phase and pattern controlling in powder metallurgy fabricated in situ process.
2. a kind of carbide according to claim 1 strengthens the powder metallurgy in-situ synthetic method of iron base composite material, it is characterised in that: described regulable control refers to and carries out mechanical activation process just for other elemental metalpowders described.
3. a kind of carbide according to claim 2 strengthens the powder metallurgy in-situ synthetic method of iron base composite material, it is characterized in that: described mechanical activation processes and refers to before batch mixing, other elemental metalpowders described in initial feed are carried out ball-milling treatment, to obtain other elemental metalpowders after activation.
4. a kind of carbide according to claim 3 strengthens the powder metallurgy in-situ synthetic method of iron base composite material, it is characterized in that: it be ratio of grinding media to material is 10: 1 that described ball milling activation processing includes parameter, other elemental metalpowder ethanol ratios are for 2g: 1ml, ball milling speed is 250-300r/min, and Ball-milling Time is 45-50h.
5. a kind of carbide according to claim 4 strengthens the powder metallurgy in-situ synthetic method of iron base composite material, it is characterised in that: comprise the steps:
1) mechanical activation of other elemental metalpowders processes, it is thus achieved that other elemental metalpowders after activation;
2) batch mixing: using the starting powder as composite of other elemental metalpowders after carbon dust, iron powder and described activation, it is that 2-5% carries out described starting powder preparation by carbide weight/mass percentage composition, ball mill carries out wet mixing batch mixing, ratio of grinding media to material is 3: 1, starting powder ethanol ratio is for 2g: 1ml, rotating speed is 200-250r/min, and mixing time is 4-6h.
3) by by step 2) mixed-powder that obtains is dried in vacuum drying oven, and baking temperature is 80-100 DEG C.
4) by by step 3) dried powder that obtains carries out embossing or cold isostatic compaction.
5) by by step 4) sample that presses carries out vacuum or high temperature insostatic pressing (HIP) (HIP) sinters reaction in-situ, and obtain carbide and strengthen iron base composite material.
6. a kind of carbide according to claim 4 strengthens the powder metallurgy in-situ synthetic method of iron base composite material, it is characterised in that other metallic elements described include one or more in titanium, chromium, vanadium, niobium, tungsten, zirconium or rare earth element.
7. a kind of carbide according to claim 4 strengthens the powder metallurgy in-situ synthetic method of iron base composite material, it is characterised in that after regulable control, described enhancing phase carbide particle particle diameter is less than 5 μm, and granule-morphology is almost spherical.
8. a kind of carbide according to claim 4 strengthens carbide enhancing iron base composite material prepared by the powder metallurgy in-situ synthetic method of iron base composite material, it is characterized in that: composition and each composition quality percentage composition are, C:0.80～1.20%, other metallic elements described: 3.50～4.50%, surplus is Fe.
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106756584A (en) * | 2016-12-05 | 2017-05-31 | 常州轻工职业技术学院 | Iron base composite material and preparation method thereof |
| CN108971500A (en) * | 2018-07-20 | 2018-12-11 | 淮阴工学院 | High corrosion-resistant in-situ nano carbide enhances stainless steel implant and its manufacturing process |
| CN110129650A (en) * | 2019-05-15 | 2019-08-16 | 西安理工大学 | A kind of metal/carbon compound nucleocapsid enhancing steel-based composite material and preparation method thereof |
| CN110541902A (en) * | 2019-09-06 | 2019-12-06 | 北京浦然轨道交通科技有限公司 | Copper-iron-based powder metallurgy brake pad friction block and preparation method thereof |
| CN111101047A (en) * | 2018-10-25 | 2020-05-05 | 青海民族大学 | In-situ TiC particle and large-proportion amorphous alloy co-reinforced manganese steel-based composite material and preparation method thereof |
| CN113751707A (en) * | 2021-09-14 | 2021-12-07 | 郑州磨料磨具磨削研究所有限公司 | Method for preparing nano carbide particle dispersion strengthening alloy powder |
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