CN102080201A - Grain refinement method of rhenium alloy cast structure - Google Patents
Grain refinement method of rhenium alloy cast structure Download PDFInfo
- Publication number
- CN102080201A CN102080201A CN2009102202115A CN200910220211A CN102080201A CN 102080201 A CN102080201 A CN 102080201A CN 2009102202115 A CN2009102202115 A CN 2009102202115A CN 200910220211 A CN200910220211 A CN 200910220211A CN 102080201 A CN102080201 A CN 102080201A
- Authority
- CN
- China
- Prior art keywords
- rhenium alloy
- rhenium alloys
- rhenium
- ultrasonic
- alloy
- 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.)
- Pending
Links
Abstract
The invention discloses a grain refinement method of a rhenium alloy cast structure, which comprises the following steps of carrying out conventional melting, deslagging, degassing and refining on rhenium alloy ingredients, and finally cooling naturally to room temperature to obtain a rhenium alloy billet with refined grains and uniform structures. The grain refinement method of the rhenium alloy cast structure is characterized in that an ultrasonic field is additionally applied to alloy liquid via a casting mold during alloy casting. The ultrasonic frequency of the rhenium alloy casting mold is 29,500-46,800Hz, the sound intensity in the ultrasonic field is 48-580W, and the average acoustic impedance is 1.50*10<7>-4.55*10<7>kg/m<2>.s. With simple processes and simple production devices adopted, the rhenium alloy metallographic structures can be changed and refined, the mechanical properties of the rhenium alloy can be improved, which are good for the subsequent processing of the ingot.
Description
Technical field
The present invention relates to the crystal fining method of a kind of rhenium alloys cast structure, belong to metal alloy casting technique and rotten treatment process field.
Background technology
The performance of metallic substance is determined by its tissue and structure, and the grain size of metal is one of key character parameter of tissue after the crystallization, so will and how control grain size and carry out necessary research the grain size behind the metallic crystal.The method of existing metal structure refinement mainly contains two classes: the one, and chemical refinement method, this method are to add alterant in molten metal bath, comprise nucleating agent and grain size inhibitor etc.; The 2nd, the physical thinning method is as mechanical vibration, electric and magnetic oscillation, mechanical stirring and gas blow mixing etc.All there is weak point in aforesaid method, at first is to add additive can introduce impurity element, more or less can cause the even segregation phenomena of chemical composition and tissue odds, even form nonmetal inclusion; Next is that the big or power consumption of the required equipment complexity of physical method, investment is big etc.
The ultrasonic vibration method is being studied aspect the ingot structure refinement of metal and alloy at present, but has just roughly studied the influence of ultrasonic frequency height to grain-size.These research trials do not have the concrete significant parameter that system studies ultrasonic field all sidedly, as the change of the sound intensity and the specific acoustic resistance regularity influence to the refinement of rhenium alloys solidified structure.
Summary of the invention
The crystal fining method that the purpose of this invention is to provide a kind of rhenium alloys cast structure particularly provides a kind of method of ultrasonic field refinement rhenium alloys tissue; Another object of the present invention provides the comparatively concrete significant parameter of the sound intensity of system, to obtain the best thinning effect of rhenium alloys tissue.
The present invention is applied to multicomponent with ultrasonic technology first, and the bigger welding of experiment difficulty is with on the rhenium alloys, and welding is a kind of rhenium alloys material of widespread use in the industrial production with rhenium alloys.
The invention provides a kind of thinning process of rhenium alloys solidified structure, comprise rhenium alloys batching through the fusing of routine, remove slag, degasification, each operation of refining, it is characterized in that in the cast alloy process, applying a ultrasonic field, on the rhenium alloys shell, install ultrasonic transducer, at casting front opening ultrasonic generator, and the parameter of regulating the ultrasonic sound intensity, solidify and naturally cool to room temperature up to rhenium alloys liquid, can obtain the rhenium alloys blank of grain refining, homogeneous microstructure.The frequency of ultrasonic that is added in rhenium alloys casting mold is 29500-46800Hz, and the sound intensity of ultrasonic field is 48-580W, and average specific acoustic resistance is 1.50 * 10
7-4.55 * 10
7Kg/m
2S.
By the processing of ultrasonic field, the solidified structure of rhenium alloys all can obtain refinement in various degree, and the size of crystal grain has bigger influence to Drawing abillity.
Advantageous effect of the present invention is as follows:
The advantage of the inventive method is by simple processing method and simple production unit, can change the metallographic structure with the refinement rhenium alloys, improves the mechanical property of rhenium alloys material, is beneficial to the press working of follow-up ingot casting.
Embodiment
Content of the present invention is described in detail by embodiment, does not limit but be not implemented example.
The present invention is earlier melted the rhenium alloys batching, remove slag, is taken out alloy liquid after the degasification, refining with conventional processing method, at the rhenium alloys liquid front opening ultrasonic generator of casting, regulates frequency of ultrasonic, the sound intensity, configures specific acoustic resistance.Rhenium alloys liquid is poured in the mold, make it naturally cool to room temperature, can obtain the rhenium alloys blank of grain refining, homogeneous microstructure.
The chemical ingredients of the rhenium alloys that the inventive method is used is that Re-Al-Sn-Fe is an alloy.
The rhenium alloys that the inventive method adopts is near the 40ReAlSnFe trade mark, and its chemical ingredients is:
| Re | Al | Sn | Fe | Ni |
| Surplus | 34 | 17 | 7.5 | 1.5 |
The rhenium alloys batching melts refining process as previously mentioned, and the rhenium alloys liquid of gained pours into mold at 2120-2170 ℃, opens ultrasonic generator, and adjusting configures hyperacoustic parameter.Its frequency of ultrasonic is 39500Hz, and the sound intensity of ultrasonic field is 440W, and average specific acoustic resistance is 3.45 * 10
7Kg/m
2S.Naturally cool to room temperature, solidify the resulting rhenium alloys metallographic structure in back, through the metallography microscope sem observation, find that its white portion is the initial alpha phase, present granular form, its black part is divided into eutectic structure, in the form of sheets.
The rhenium alloys that rhenium alloys after employing the inventive method ultrasonic field is handled and traditional routine are solidified, the two can do one relatively.The former as previously mentioned, initial alpha mutually and eutectic structure all obtained obvious refinement, and the latter can find tangible flourishing dentrite, though its eutectic structure is needle-like and sheet, organizes thick.The former grain-size is the 1/7-1/14 of latter's grain-size.
From the foregoing description as seen, processing method of the present invention proves that ultrasonic field is solidified metallographic structure to rhenium alloys and had bigger influence, and the reasonable disposition of relevant parameter can reach best solidified structure.
Claims (1)
1. the thinning process of a rhenium alloys solidified structure, it is characterized in that comprising following processing method: rhenium alloys batching through the fusing of routine, remove slag, degasification, each operation of refining, in the cast alloy process, apply a ultrasonic field for alloy liquid by mold, the frequency of ultrasonic that is added in rhenium alloys casting mold is 29500-46800Hz, the sound intensity of ultrasonic field is 48-580W, and average specific acoustic resistance is 1.50 * 10
7-4.55 * 10
7Kg/m
2S.Make it naturally cool to room temperature at last, can obtain the rhenium alloys blank of grain refining, homogeneous microstructure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009102202115A CN102080201A (en) | 2009-11-27 | 2009-11-27 | Grain refinement method of rhenium alloy cast structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009102202115A CN102080201A (en) | 2009-11-27 | 2009-11-27 | Grain refinement method of rhenium alloy cast structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102080201A true CN102080201A (en) | 2011-06-01 |
Family
ID=44086389
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009102202115A Pending CN102080201A (en) | 2009-11-27 | 2009-11-27 | Grain refinement method of rhenium alloy cast structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102080201A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110408871A (en) * | 2019-09-10 | 2019-11-05 | 赣州有色冶金研究所 | A kind of tantalum, niobium, tantalum alloy and niobium alloy crystal fining method |
-
2009
- 2009-11-27 CN CN2009102202115A patent/CN102080201A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110408871A (en) * | 2019-09-10 | 2019-11-05 | 赣州有色冶金研究所 | A kind of tantalum, niobium, tantalum alloy and niobium alloy crystal fining method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101624671B (en) | Large-diameter 7005 aluminum alloy round ingot and preparation method thereof | |
| CN103820661B (en) | The preparation method of semisolid state slurry thereof of magnesium-rare earth | |
| CN102615257B (en) | Method for refining and spheroidizing metal or alloy | |
| CN108796327A (en) | A kind of high-ductility, less anisotropy wrought magnesium alloy plank and preparation method thereof | |
| CN105463272A (en) | Production method for 5005 aluminum alloy circular ingots | |
| Zhang et al. | Microstructure and mechanical properties of rheo-squeeze casting AZ91-Ca magnesium alloy prepared by gas bubbling process | |
| CN102133629A (en) | Light-alloy electromagnetic suspension casting device and method | |
| CN106282692A (en) | A kind of vehicle body of railway vehicle aluminium section bar of high bending property and preparation method thereof | |
| CN106435314B (en) | A kind of zirconium/magnesia grain refiner and its preparation method and application | |
| CN108220637A (en) | 5A03 aluminium alloy cast ingots production method and 5A03 aluminium alloy cast ingots and application | |
| CN101358280A (en) | Method for improving carbon steel solidification structure using high voltage electropulse | |
| CN102031442B (en) | Preparation and application method of inoculant for tissue deterioration and refinement of high-speed steel for roller | |
| CN104313370B (en) | A kind of refine the method for Nd-rich phase in magnesium-rare earth | |
| CN105568019A (en) | Refining method for CuAlMn shape memory alloy grains | |
| CN109750131B (en) | Method for improving inoculation effect of nodular cast iron by ultrasonic assistance | |
| CN111020320A (en) | High-strength aluminum alloy and production method thereof | |
| CN106756305A (en) | A kind of Aluminum alloy modification processing method | |
| CN106119617A (en) | A kind of aluminum zircaloy and powder metallurgy forming method thereof | |
| CN106756180B (en) | A kind of calcium/magnesia grain refiner and its preparation method and application | |
| CN101987354A (en) | Grain refining process method of silver alloy cast structure | |
| Han et al. | Grain refining of pure aluminum | |
| CN111001777A (en) | Composite field treatment and high-pressure extrusion forming method for iron-containing aluminum alloy | |
| CN102080201A (en) | Grain refinement method of rhenium alloy cast structure | |
| CN107365918A (en) | A kind of casting technique of aluminium alloy ingots | |
| CN106086537A (en) | A kind of Al-Ti-B alloy and powder metallurgy forming method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20110601 |