CN105821273B - A kind of high temperature resistant tungsten-molybdenum alloy and preparation method thereof - Google Patents
A kind of high temperature resistant tungsten-molybdenum alloy and preparation method thereof Download PDFInfo
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- CN105821273B CN105821273B CN201610374892.0A CN201610374892A CN105821273B CN 105821273 B CN105821273 B CN 105821273B CN 201610374892 A CN201610374892 A CN 201610374892A CN 105821273 B CN105821273 B CN 105821273B
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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 kind of high temperature resistant tungsten-molybdenum alloy, include 50wt%~70wt% tungsten；The molybdenum of 20wt%~40%；3wt%~5wt% rhenium；1wt%~3wt% nickel；1wt%~3wt% chromium；1wt%~3wt% cobalt.Present invention also offers a kind of preparation method of the high temperature resistant tungsten-molybdenum alloy described in above-mentioned technical proposal.The present invention adds nickel, chromium and cobalt in tungsten-molybdenum alloy, and obtained alloy has good elevated temperature strength, and cost is relatively low.Test result indicates that, the tungsten-molybdenum alloy that the present invention is provided is at 900~1200 DEG C, and uniaxial tension intensity is reachable, and yield stress is reachable, and hardness is up to 750~900MPa, and yield stress is up to 800~950MPa, and hardness is up to 200~230HBS.
Description
Technical field
The invention belongs to tungsten alloy technique field, more particularly to a kind of high temperature resistant tungsten-molybdenum alloy and preparation method thereof.
Background technology
Tungsten-molybdenum alloy is the main alloy being made up of tungsten and molybdenum, with preferable elevated temperature strength, therefore can be used as high temperature bar
Filament, part and other high-temperature materials of high-temperature component, electron tube under part in rocket, guided missile.
Prior art discloses a variety of resistant to elevated temperatures tungsten-molybdenum alloys, but its cost is higher.
The content of the invention
In view of this, it is an object of the invention to provide the tungsten-molybdenum alloy that a kind of cost is relatively low, elevated temperature strength is good and its system
Preparation Method.
The invention provides a kind of high temperature resistant tungsten-molybdenum alloy, including：
50wt%~70wt% tungsten；
The molybdenum of 20wt%~40%；
3wt%~5wt% rhenium；
1wt%~3wt% nickel；
1wt%~3wt% chromium；
1wt%~3wt% cobalt.
In one embodiment, the high temperature resistant tungsten-molybdenum alloy includes：
50wt% tungsten；
40% molybdenum；
3wt% rheniums；
1wt% nickel；
3wt% chromium；
3wt% cobalt.
In one embodiment, the high temperature resistant tungsten-molybdenum alloy includes：
70wt% tungsten；
20wt% molybdenum；
3wt% rhenium；
3wt% nickel；
2wt% chromium；
2wt% cobalt.
In one embodiment, the high temperature resistant tungsten-molybdenum alloy includes：
60wt% tungsten；
30wt% molybdenum；
4wt% rhenium；
2wt% nickel；
1wt% chromium；
3wt% cobalt.
In one embodiment, the high temperature resistant tungsten-molybdenum alloy includes：
65wt% tungsten；
25wt% molybdenum；
4wt% rhenium；
2wt% nickel；
3wt% chromium；
1wt% cobalt.
Present invention also offers a kind of preparation method of the high temperature resistant tungsten-molybdenum alloy described in above-mentioned technical proposal, including：
It is cold-pressed after tungsten powder, molybdenum powder, rhenium powder, nickel powder, chromium powder and cobalt powder are mixed, sinters post-processing, obtain high temperature resistant tungsten
Alloy.
It is preferred that, the tungsten powder, molybdenum powder, rhenium powder, nickel powder, chromium powder and cobalt powder are dehydrated in a vacuum before mixing, cross 500
~1000 mesh sieves.
It is preferred that, it is described be blended in V-type batch mixer carry out, rotating speed be 50~60 revs/min, incorporation time be 30~
40h。
It is preferred that, the cold pressing is carried out under inert gas shielding, and pressure is 250MPa~350MPa.
It is preferred that, the temperature of the sintering is 2000~2500 DEG C, and the time of the sintering is 20~30h；
The temperature of the processing is 900~1200 DEG C.
The high temperature resistant tungsten-molybdenum alloy that the present invention is provided includes 50wt%~70wt% tungsten；The molybdenum of 20wt%~40%；
3wt%~5wt% rhenium；1wt%~3wt% nickel；1wt%~3wt% chromium；1wt%~3wt% cobalt.The present invention exists
Nickel, chromium and cobalt are added in tungsten-molybdenum alloy, obtained alloy has good elevated temperature strength, and cost is relatively low.Test result indicates that,
The tungsten-molybdenum alloy that the present invention is provided is at 900~1200 DEG C, and uniaxial tension intensity is reachable, and yield stress is reachable, and hardness is up to 750
~900MPa, yield stress is up to 800~950MPa, and hardness is up to 200~230HBS.
Embodiment
The technical scheme in the embodiment of the present invention will be clearly and completely described below, it is clear that described implementation
Example only a part of embodiment of the invention, rather than whole embodiments.Based on the embodiment in the present invention, this area is common
The every other embodiment that technical staff is obtained under the premise of creative work is not made, belongs to the model that the present invention is protected
Enclose.
Embodiment 1
According to following ratio dispensing：
50wt% tungsten；
40% molybdenum；
3wt% rheniums；
1wt% nickel；
3wt% chromium；
3wt% cobalt.
Tungsten powder, molybdenum powder, rhenium powder, nickel powder, chromium powder and cobalt powder are dehydrated 3h in a vacuum, 500 mesh sieves are crossed；By the powder after sieving
End is added in V-type batch mixer, batch mixing 40h under 50 turns/min of rotating speed；Well mixed powder is carried out under nitrogen protection cold
Pressure, pressure is 250MPa；Then it is transferred at smelting furnace, 2000 DEG C and sinters 30h；After sintering, it is cooled to 1000 DEG C and is processed, makes
Standby silk or band.
Performance measurement is carried out to the B alloy wire at 1000 DEG C, its uniaxial tension intensity is up to 800MPa, yield stress
Up to 850MPa, hardness is up to 230HBS.
Embodiment 2
According to following ratio dispensing：
70wt% tungsten；
20wt% molybdenum；
3wt% rhenium；
3wt% nickel；
2wt% chromium；
2wt% cobalt.
Tungsten powder, molybdenum powder, rhenium powder, nickel powder, chromium powder and cobalt powder are dehydrated 3h in a vacuum, 800 mesh sieves are crossed；By the powder after sieving
End is added in V-type batch mixer, batch mixing 30h under 60 turns/min of rotating speed；Well mixed powder is carried out under nitrogen protection cold
Pressure, pressure is 350MPa；Then it is transferred at smelting furnace, 2500 DEG C and sinters 20h；After sintering, it is cooled to 1100 DEG C and is processed, makes
Standby silk or band.
Performance measurement is carried out to the B alloy wire at 1100 DEG C, its uniaxial tension intensity is up to 850MPa, yield stress
Up to 950MPa, hardness is up to 220HBS.
Embodiment 3
According to following ratio dispensing：
60wt% tungsten；
30wt% molybdenum；
4wt% rhenium；
2wt% nickel；
1wt% chromium；
3wt% cobalt.
Tungsten powder, molybdenum powder, rhenium powder, nickel powder, chromium powder and cobalt powder are dehydrated 3h in a vacuum, 600 mesh sieves are crossed；By the powder after sieving
End is added in V-type batch mixer, batch mixing 35h under 55 turns/min of rotating speed；Well mixed powder is carried out under nitrogen protection cold
Pressure, pressure is 250MPa；Then it is transferred at smelting furnace, 2200 DEG C and sinters 33h；After sintering, it is cooled to 1200 DEG C and is processed, makes
Standby silk or band.
Performance measurement is carried out to the B alloy wire at 1200 DEG C, its uniaxial tension intensity is up to 750MPa, yield stress
Up to 800MPa, hardness is up to 200HBS.
Embodiment 4
According to following ratio dispensing：
65wt% tungsten；
25wt% molybdenum；
4wt% rhenium；
2wt% nickel；
3wt% chromium；
1wt% cobalt.
Tungsten powder, molybdenum powder, rhenium powder, nickel powder, chromium powder and cobalt powder are dehydrated 3h in a vacuum, 500 mesh sieves are crossed；By the powder after sieving
End is added in V-type batch mixer, batch mixing 40h under 50 turns/min of rotating speed；Well mixed powder is carried out under nitrogen protection cold
Pressure, pressure is 300MPa；Then it is transferred at smelting furnace, 2300 DEG C and sinters 30h；After sintering, it is cooled to 900 DEG C and is processed, makes
Standby silk or band.
Performance measurement is carried out to the B alloy wire at 900 DEG C, its uniaxial tension intensity is up to 900MPa, and yield stress can
Up to 950MPa, hardness is up to 220HBS.
Described above is only the preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, under the premise without departing from the principles of the invention, some improvements and modifications can also be made, these improvements and modifications also should
It is considered as protection scope of the present invention.
Claims (10)
1. a kind of high temperature resistant tungsten-molybdenum alloy, including：
50wt%~70wt% tungsten；
The molybdenum of 20wt%~40%；
3wt%~5wt% rhenium；
1wt%~3wt% nickel；
1wt%~3wt% chromium；
1wt%~3wt% cobalt.
2. high temperature resistant tungsten-molybdenum alloy according to claim 1, it is characterised in that including：
50wt% tungsten；
40% molybdenum；
3wt% rheniums；
1wt% nickel；
3wt% chromium；
3wt% cobalt.
3. high temperature resistant tungsten-molybdenum alloy according to claim 1, it is characterised in that including：
70wt% tungsten；
20wt% molybdenum；
3wt% rhenium；
3wt% nickel；
2wt% chromium；
2wt% cobalt.
4. high temperature resistant tungsten-molybdenum alloy according to claim 1, it is characterised in that including：
60wt% tungsten；
30wt% molybdenum；
4wt% rhenium；
2wt% nickel；
1wt% chromium；
3wt% cobalt.
5. high temperature resistant tungsten-molybdenum alloy according to claim 1, it is characterised in that including：
65wt% tungsten；
25wt% molybdenum；
4wt% rhenium；
2wt% nickel；
3wt% chromium；
1wt% cobalt.
6. the preparation method of the high temperature resistant tungsten-molybdenum alloy described in Claims 1 to 5 any one, including：
It is cold-pressed after tungsten powder, molybdenum powder, rhenium powder, nickel powder, chromium powder and cobalt powder are mixed, sinters post-processing, obtain high temperature resistant tungsten-molybdenum alloy.
7. preparation method according to claim 6, it is characterised in that the tungsten powder, molybdenum powder, rhenium powder, nickel powder, chromium powder and cobalt
Powder is dehydrated in a vacuum before mixing, crosses 500~1000 mesh sieves.
8. preparation method according to claim 6, it is characterised in that described be blended in V-type batch mixer is carried out, and rotating speed is
50~60 revs/min, incorporation time is 30~40h.
9. preparation method according to claim 6, it is characterised in that the cold pressing is carried out under inert gas shielding, pressure
Power is 250MPa~350MPa.
10. preparation method according to claim 6, it is characterised in that the temperature of the sintering is 2000~2500 DEG C, institute
The time for stating sintering is 20~30h；
The temperature of the processing is 900~1200 DEG C.
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| 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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| CN105821273B true CN105821273B (en) | 2017-09-01 |
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| 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 |
| 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 |
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 |
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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 |
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