CN105821273A - High temperature resisting tungsten-molybdenum alloy and preparation method thereof - Google Patents
High temperature resisting tungsten-molybdenum alloy and preparation method thereof Download PDFInfo
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- CN105821273A CN105821273A CN201610374892.0A CN201610374892A CN105821273A CN 105821273 A CN105821273 A CN 105821273A CN 201610374892 A CN201610374892 A CN 201610374892A CN 105821273 A CN105821273 A CN 105821273A
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C27/00—Alloys based on rhenium or a refractory metal not mentioned in groups C22C14/00 or C22C16/00
- C22C27/04—Alloys based on tungsten or molybdenum
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C1/00—Making non-ferrous alloys
- C22C1/04—Making non-ferrous alloys by powder metallurgy
- C22C1/045—Alloys based on refractory metals
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Abstract
The invention provides a high temperature resisting tungsten-molybdenum alloy. The high temperature resisting tungsten-molybdenum alloy comprises, by weight, 50%-70% of tungsten, 20%-40% of molybdenum, 3%-5% of rhenium, 1%-3% of nickel, 1%-3% of chromium and 1%-3% of cobalt. The invention further provides a preparation method of the high temperature resisting tungsten-molybdenum alloy in the technical scheme. The nickel, the chromium and the cobalt are added into the tungsten-molybdenum alloy, and the obtained alloy has good high temperature strength and is low in cost. Experimental results indicate that at the temperature ranging from 900 DEG C to 1,200 DEG C, the uniaxial drawing strength of the tungsten-molybdenum alloy can reach 750 MPa to 900 MPa, the yield stress of the tungsten-molybdenum alloy can reach 800 MPa to 950 MPa, and the hardness of the tungsten-molybdenum alloy can reach 200 HBS to 230 HBS.
Description
Technical field
The invention belongs to tungsten alloy technique field, particularly relate to a kind of high temperature resistant tungsten-molybdenum alloy and preparation method thereof.
Background technology
Tungsten-molybdenum alloy is the alloy being mainly made up of tungsten and molybdenum, has preferable elevated temperature strength, therefore can be used as the high-temperature component in rocket under hot conditions, guided missile, the filament of electron tube, part and other high-temperature materials.
Prior art discloses multiple resistant to elevated temperatures tungsten-molybdenum alloy, but it is relatively costly.
Summary of the invention
In view of this, it is an object of the invention to provide a kind of cost is relatively low, elevated temperature strength is good tungsten-molybdenum alloy and preparation method thereof.
The invention provides a kind of high temperature resistant tungsten-molybdenum alloy, including:
The tungsten of 50wt%～70wt%；
The molybdenum of 20wt%～40%；
The rhenium of 3wt%～5wt%；
The nickel of 1wt%～3wt%；
The chromium of 1wt%～3wt%；
The cobalt of 1wt%～3wt%.
In one embodiment, described high temperature resistant tungsten-molybdenum alloy includes:
The tungsten of 50wt%；
The molybdenum of 40%；
3wt% rhenium；
The nickel of 1wt%；
The chromium of 3wt%；
The cobalt of 3wt%.
In one embodiment, described high temperature resistant tungsten-molybdenum alloy includes:
The tungsten of 70wt%；
The molybdenum of 20wt%；
The rhenium of 3wt%；
The nickel of 3wt%；
The chromium of 2wt%；
The cobalt of 2wt%.
In one embodiment, described high temperature resistant tungsten-molybdenum alloy includes:
The tungsten of 60wt%；
The molybdenum of 30wt%；
The rhenium of 4wt%；
The nickel of 2wt%；
The chromium of 1wt%；
The cobalt of 3wt%.
In one embodiment, described high temperature resistant tungsten-molybdenum alloy includes:
The tungsten of 65wt%；
The molybdenum of 25wt%；
The rhenium of 4wt%；
The nickel of 2wt%；
The chromium of 3wt%；
The cobalt of 1wt%.
Present invention also offers the preparation method of high temperature resistant tungsten-molybdenum alloy described in a kind of technique scheme, including:
Cold pressing after tungsten powder, molybdenum powder, rhenium powder, nikel powder, chromium powder and cobalt powder are mixed, sinter post-treatment, obtain high temperature resistant tungsten-molybdenum alloy.
Preferably, described tungsten powder, molybdenum powder, rhenium powder, nikel powder, chromium powder and cobalt powder are dehydrated the most in a vacuum, cross 500～1000 mesh sieves.
Preferably, described in be blended in V-type batch mixer and carry out, rotating speed is 50～60 revs/min, and incorporation time is 30～40h.
Preferably, described in cold pressing and carry out under inert gas shielding, pressure is 250MPa～350MPa.
Preferably, the temperature of described sintering is 2000～2500 DEG C, and the time of described sintering is 20～30h；
The temperature of described processing is 900～1200 DEG C.
The high temperature resistant tungsten-molybdenum alloy that the present invention provides includes the tungsten of 50wt%～70wt%；The molybdenum of 20wt%～40%；The rhenium of 3wt%～5wt%；The nickel of 1wt%～3wt%；The chromium of 1wt%～3wt%；The cobalt of 1wt%～3wt%.The present invention adds nickel, chromium and cobalt in tungsten-molybdenum alloy, and the alloy obtained has good elevated temperature strength, and cost is relatively low.Test result indicate that, the tungsten-molybdenum alloy that the present invention provides at 900～1200 DEG C, uniaxial tension intensity up to, yield stress up to, hardness up to 750～900MPa, yield stress is up to 800～950MPa, and hardness is up to 200～230HBS.
Detailed description of the invention
Technical scheme in the embodiment of the present invention will be clearly and completely described below, it is clear that described embodiment is only a part of embodiment of the present invention rather than whole embodiments.Based on the embodiment in the present invention, the every other embodiment that those of ordinary skill in the art are obtained under not making creative work premise, broadly fall into the scope of protection of the invention.
Embodiment 1
According to following ratio dispensing:
The tungsten of 50wt%；
The molybdenum of 40%；
3wt% rhenium；
The nickel of 1wt%；
The chromium of 3wt%；
The cobalt of 3wt%.
Tungsten powder, molybdenum powder, rhenium powder, nikel powder, chromium powder and cobalt powder are dehydrated in a vacuum 3h, cross 500 mesh sieves；Powder after sieving joins in V-type batch mixer, batch mixing 40h under 50 turns/min of rotating speed；Being colded pressing under nitrogen protection by the powder of mix homogeneously, pressure is 250MPa；Then proceed to smelting furnace, at 2000 DEG C, sinter 30h；After sintering, it is cooled to 1000 DEG C and is processed, prepare silk or band.
At 1000 DEG C, described B alloy wire being carried out performance measurement, its uniaxial tension intensity is up to 800MPa, and yield stress is up to 850MPa, and hardness is up to 230HBS.
Embodiment 2
According to following ratio dispensing:
The tungsten of 70wt%；
The molybdenum of 20wt%；
The rhenium of 3wt%；
The nickel of 3wt%；
The chromium of 2wt%；
The cobalt of 2wt%.
Tungsten powder, molybdenum powder, rhenium powder, nikel powder, chromium powder and cobalt powder are dehydrated in a vacuum 3h, cross 800 mesh sieves；Powder after sieving joins in V-type batch mixer, batch mixing 30h under 60 turns/min of rotating speed；Being colded pressing under nitrogen protection by the powder of mix homogeneously, pressure is 350MPa；Then proceed to smelting furnace, at 2500 DEG C, sinter 20h；After sintering, it is cooled to 1100 DEG C and is processed, prepare silk or band.
At 1100 DEG C, described B alloy wire being carried out performance measurement, its uniaxial tension intensity is up to 850MPa, and yield stress is up to 950MPa, and hardness is up to 220HBS.
Embodiment 3
According to following ratio dispensing:
The tungsten of 60wt%；
The molybdenum of 30wt%；
The rhenium of 4wt%；
The nickel of 2wt%；
The chromium of 1wt%；
The cobalt of 3wt%.
Tungsten powder, molybdenum powder, rhenium powder, nikel powder, chromium powder and cobalt powder are dehydrated in a vacuum 3h, cross 600 mesh sieves；Powder after sieving joins in V-type batch mixer, batch mixing 35h under 55 turns/min of rotating speed；Being colded pressing under nitrogen protection by the powder of mix homogeneously, pressure is 250MPa；Then proceed to smelting furnace, at 2200 DEG C, sinter 33h；After sintering, it is cooled to 1200 DEG C and is processed, prepare silk or band.
At 1200 DEG C, described B alloy wire being carried out performance measurement, its uniaxial tension intensity is up to 750MPa, and yield stress is up to 800MPa, and hardness is up to 200HBS.
Embodiment 4
According to following ratio dispensing:
The tungsten of 65wt%；
The molybdenum of 25wt%；
The rhenium of 4wt%；
The nickel of 2wt%；
The chromium of 3wt%；
The cobalt of 1wt%.
Tungsten powder, molybdenum powder, rhenium powder, nikel powder, chromium powder and cobalt powder are dehydrated in a vacuum 3h, cross 500 mesh sieves；Powder after sieving joins in V-type batch mixer, batch mixing 40h under 50 turns/min of rotating speed；Being colded pressing under nitrogen protection by the powder of mix homogeneously, pressure is 300MPa；Then proceed to smelting furnace, at 2300 DEG C, sinter 30h；After sintering, it is cooled to 900 DEG C and is processed, prepare silk or band.
At 900 DEG C, described B alloy wire being carried out performance measurement, its uniaxial tension intensity is up to 900MPa, and yield stress is up to 950MPa, and hardness is up to 220HBS.
The above is only the preferred embodiment of the present invention; it should be pointed out that, for those skilled in the art, under the premise without departing from the principles of the invention; can also make some improvements and modifications, these improvements and modifications also should be regarded as protection scope of the present invention.
Claims (10)
1. a high temperature resistant tungsten-molybdenum alloy, including:
The tungsten of 50wt%～70wt%；
The molybdenum of 20wt%～40%；
The rhenium of 3wt%～5wt%；
The nickel of 1wt%～3wt%；
The chromium of 1wt%～3wt%；
The cobalt of 1wt%～3wt%.
High temperature resistant tungsten-molybdenum alloy the most according to claim 1, it is characterised in that including:
The tungsten of 50wt%；
The molybdenum of 40%；
3wt% rhenium；
The nickel of 1wt%；
The chromium of 3wt%；
The cobalt of 3wt%.
High temperature resistant tungsten-molybdenum alloy the most according to claim 1, it is characterised in that including:
The tungsten of 70wt%；
The molybdenum of 20wt%；
The rhenium of 3wt%；
The nickel of 3wt%；
The chromium of 2wt%；
The cobalt of 2wt%.
High temperature resistant tungsten-molybdenum alloy the most according to claim 1, it is characterised in that including:
The tungsten of 60wt%；
The molybdenum of 30wt%；
The rhenium of 4wt%；
The nickel of 2wt%；
The chromium of 1wt%；
The cobalt of 3wt%.
High temperature resistant tungsten-molybdenum alloy the most according to claim 1, it is characterised in that including:
The tungsten of 65wt%；
The molybdenum of 25wt%；
The rhenium of 4wt%；
The nickel of 2wt%；
The chromium of 3wt%；
The cobalt of 1wt%.
6. the preparation method of the high temperature resistant tungsten-molybdenum alloy described in Claims 1 to 5 any one, including:
Cold pressing after tungsten powder, molybdenum powder, rhenium powder, nikel powder, chromium powder and cobalt powder are mixed, sinter post-treatment, obtain high temperature resistant tungsten-molybdenum alloy.
Preparation method the most according to claim 6, it is characterised in that described tungsten powder, molybdenum powder, rhenium powder, nikel powder, chromium powder and cobalt powder are dehydrated the most in a vacuum, crosses 500～1000 mesh sieves.
Preparation method the most according to claim 6, it is characterised in that described in be blended in V-type batch mixer and carry out, rotating speed is 50～60 revs/min, and incorporation time is 30～40h.
Preparation method the most according to claim 6, it is characterised in that described in cold pressing and carry out under inert gas shielding, pressure is 250MPa～350MPa.
Preparation method the most according to claim 6, it is characterised in that the temperature of described sintering is 2000～2500 DEG C, the time of described sintering is 20～30h；
The temperature of described processing is 900～1200 DEG C.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201610374892.0A CN105821273B (en) | 2016-05-31 | 2016-05-31 | A kind of high temperature resistant tungsten-molybdenum alloy and preparation method thereof |
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| CN201610374892.0A CN105821273B (en) | 2016-05-31 | 2016-05-31 | A kind of high temperature resistant tungsten-molybdenum alloy and preparation method thereof |
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| CN105821273A true CN105821273A (en) | 2016-08-03 |
| CN105821273B CN105821273B (en) | 2017-09-01 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107267781A (en) * | 2017-06-30 | 2017-10-20 | 马鞍山华盛冶金科技发展有限公司 | A kind of method for smelting low-grade tungsten ore deposit and the method for reclaiming phosphorus simultaneously |
| CN107723550A (en) * | 2017-11-10 | 2018-02-23 | 新疆红电金铸耐磨材料有限责任公司 | A kind of stellite steel ball and preparation method thereof |
| CN107904466A (en) * | 2017-12-05 | 2018-04-13 | 安徽恒利增材制造科技有限公司 | A kind of high intensity tungsten molybdenum alloy |
| CN112226661A (en) * | 2020-10-16 | 2021-01-15 | 内蒙金属材料研究所 | Ablation-resistant molybdenum alloy and preparation method thereof |
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| CN1003014B (en) * | 1985-04-01 | 1989-01-04 | 中南工业大学粉末冶金研究所 | Tungsten contact point made by powder metallurgy |
| CN1048066A (en) * | 1989-06-16 | 1990-12-26 | 冶金工业部钢铁研究总院 | Novel tungsten alloy ball |
| CN104046874A (en) * | 2014-07-11 | 2014-09-17 | 辽阳斯佳机械配件有限公司 | Tungsten-based alloy for granulating template |
| CN105420579A (en) * | 2015-12-11 | 2016-03-23 | 天津爱田汽车部件有限公司 | High-temperature-resistant tungsten-molybdenum alloy and preparation method thereof |
-
2016
- 2016-05-31 CN CN201610374892.0A patent/CN105821273B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1003014B (en) * | 1985-04-01 | 1989-01-04 | 中南工业大学粉末冶金研究所 | Tungsten contact point made by powder metallurgy |
| CN1048066A (en) * | 1989-06-16 | 1990-12-26 | 冶金工业部钢铁研究总院 | Novel tungsten alloy ball |
| CN104046874A (en) * | 2014-07-11 | 2014-09-17 | 辽阳斯佳机械配件有限公司 | Tungsten-based alloy for granulating template |
| CN105420579A (en) * | 2015-12-11 | 2016-03-23 | 天津爱田汽车部件有限公司 | High-temperature-resistant tungsten-molybdenum alloy and preparation method thereof |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107267781A (en) * | 2017-06-30 | 2017-10-20 | 马鞍山华盛冶金科技发展有限公司 | A kind of method for smelting low-grade tungsten ore deposit and the method for reclaiming phosphorus simultaneously |
| CN107267781B (en) * | 2017-06-30 | 2019-05-07 | 马鞍山华盛冶金科技发展有限公司 | A kind of method for smelting low-grade tungsten mine and the method for recycling phosphorus simultaneously |
| CN107723550A (en) * | 2017-11-10 | 2018-02-23 | 新疆红电金铸耐磨材料有限责任公司 | A kind of stellite steel ball and preparation method thereof |
| CN107904466A (en) * | 2017-12-05 | 2018-04-13 | 安徽恒利增材制造科技有限公司 | A kind of high intensity tungsten molybdenum alloy |
| CN112226661A (en) * | 2020-10-16 | 2021-01-15 | 内蒙金属材料研究所 | Ablation-resistant molybdenum alloy and preparation method thereof |
| CN112226661B (en) * | 2020-10-16 | 2021-07-27 | 内蒙金属材料研究所 | Ablation-resistant molybdenum alloy and preparation method thereof |
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