CN106435265B - A kind of rail traffic spring high strength titanium alloy - Google Patents
A kind of rail traffic spring high strength titanium alloy Download PDFInfo
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- CN106435265B CN106435265B CN201610822248.5A CN201610822248A CN106435265B CN 106435265 B CN106435265 B CN 106435265B CN 201610822248 A CN201610822248 A CN 201610822248A CN 106435265 B CN106435265 B CN 106435265B
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- titanium alloy
- alloy
- high strength
- rail traffic
- weight percent
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C14/00—Alloys based on titanium
-
- 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
- C22C1/02—Making non-ferrous alloys by melting
- C22C1/03—Making non-ferrous alloys by melting using master alloys
Abstract
The present invention discloses a kind of rail traffic spring high strength titanium alloy, the weight percent of titanium alloy are as follows: Al-3.0%~4.0%, Mo-9.5%~11.0%, V-3.5%~4.5%, Cr-3.5%~4.5%, Nb-0.8%~1.2%, surplus are Ti and inevitable impurity.The invention has the advantages that: there is corrosion-resistant, lightweight, in field of track traffic, realize bigger weight loss effect.The alloy belongs to metastable beta titanium alloy, tensile strength >=1250MPa after solid solution aging, plasticity >=8%, and intensity reaches as high as 1500MPa or more.
Description
Technical field
The present invention relates to the field of material technology that rail traffic uses, specifically rail traffic spring is closed with high strength titanium
Gold.
Background technique
With the continuous speed-raising of track train, modern railway equipment lightweight requirements are continuously improved, traffic equipment light weight
Change is significantly reduced fuel consumption, but lightweight manufacturing technology and lightweighting materials are to realize the light-weighted basic guarantor of traffic equipment
Card, therefore rail traffic vehicles are one of the lightweight key technology of transportation equipment with spring lightweight.
Future track vehicular traffic is intended to high stress with spring, lightweight direction is developed, therefore titanium or titanium alloy has
Many advantages, such as specific strength is high, anti-corrosion, heat resistance is strong is one of manufacture high stress, the critical material of lightweight spring.
Superhigh intensity titanium alloy can be used to substitute spring steel as key components and parts spring alloy, be applied to aviation, boat
It, marine ship, rail traffic etc. need corrosion-resistant, lightweight position to further increase titanium especially in field of track traffic
The specific strength of alloy realizes bigger weight loss effect.
Summary of the invention
The invention aims to solve the strength of materials of rail traffic vehicles titanium alloy spring and plasticity is lower asks
Topic, to invent a kind of rail traffic spring high strength titanium alloy.
The weight percent of each alloy of high strength titanium alloy of the present invention forms are as follows: and Al-3.0%~4.0%, Mo-9.5%~
11.0%, V-3.5%~4.5%, Cr-3.5%~4.5%, Nb-0.8%~1.2%, surplus be Ti and inevitably it is miscellaneous
Matter.
The invention has the advantages that: there is corrosion-resistant, lightweight, in field of track traffic, realize bigger weight loss effect.The conjunction
Tensile strength >=1250MPa of the metal after metastable beta titanium alloy, solid solution aging, plasticity >=8%, intensity reach as high as
1500MPa or more.
Specific embodiment
Specific embodiment 1: the weight percent of each alloy of present embodiment high strength titanium alloy forms: Al-3.0%
~4.0%, Mo-9.5%~11.0%, V-3.5%~4.5%, Cr-3.5%~4.5%, Nb-0.8%~1.2%, surplus
For Ti and inevitable impurity.
Tensile strength >=1250MPa after present embodiment high strength titanium alloy solid solution aging, plasticity >=8%.
Specific embodiment 2: the present embodiment is different from the first embodiment in that high strength titanium alloy each alloy
Weight percent group become Al-3.2%~4.0%, Mo-10.0%~10.5%, V-3.5%~4.5%, Cr-3.5%~
4.5%, Nb-0.8%~1.0%, surplus are Ti and inevitable impurity.
Specific embodiment 3: the present embodiment is different from the first and the second embodiment in that high strength titanium alloy respectively closes
The weight percent composition of gold are as follows:
Al-3%, Mo-10.0%, V-4.0%, Cr-4.0%, Nb-1.0%, surplus are Ti and inevitable impurity.
The manufacturing method of present embodiment high strength titanium alloy follows these steps to realize:
A) by above-mentioned each alloy weight percent form, weigh respectively titanium sponge, rafifinal, pure chromium, aluminium molybdenum alloys and
Aluminum-vanadium alloy, aluminium niobium alloy are as raw material；
B) raw material in step a is prepared into single-piece electrode；
C) single-piece electrode group is welded into consutrode；
D) the obtained consutrode of step c is put into consumable electroarc furnace and carries out melting three times and is prepared into ingot casting；
E) ingot casting for obtaining step d 150 DEG C of cogging forging manufacture forging stocks more than alloy phase change point；
F) it finish forge and strips off the skin to Φ 75mm bar stock；
G) forging temperature is heated to bar stock in step f, open-train mill is rolled into specification Φ 16mm bar；
H) in step g bar vehicle light at Φ 15mm bar；
I) it is processed into mechanical property sample.
To the mechanical property sample for the high strength titanium alloy that present embodiment obtains, by different solid-solution and aging heat treatment works
For example small table of the Some Mechanical Properties tested after skill:
High strength titanium alloy tensile strength >=1250MPa that this implementation obtains, plasticity >=8%.
Claims (3)
1. a kind of rail traffic spring high strength titanium alloy, it is characterised in that:
The weight percent of titanium alloy are as follows: Al-3.0%~4.0%, Mo-9.5%~11.0%, V-3.5%~4.5%, Cr-
3.5%~4.5%, Nb-0.8%~1.2%, surplus are Ti and inevitable impurity；
Steps are as follows for the manufacturing method of titanium alloy:
A) according to the weight percent of above-mentioned titanium alloy, titanium sponge, rafifinal, pure chromium, aluminium molybdenum alloys and aluminium vanadium are weighed respectively
Alloy, aluminium niobium alloy are as raw material；
B) raw material in step a is prepared into single-piece electrode；
C) single-piece electrode group is welded into consutrode；
D) the obtained consutrode of step c is put into consumable electroarc furnace and carries out melting three times and is prepared into ingot casting；
E) ingot casting for obtaining step d 150 DEG C of cogging forging manufacture forging stocks more than alloy phase change point；
F) it finish forge and strips off the skin to Φ 75mm bar stock；
G) forging temperature is heated to bar stock in step f, open-train mill is rolled into specification Φ 16mm bar；
H) in step g bar vehicle light at Φ 15mm bar；
I) mechanical property test is carried out to processing finished product.
2. a kind of rail traffic spring high strength titanium alloy according to claim 1, it is characterised in that:
The weight percent of titanium alloy are as follows: Al-3.2%~4.0%, Mo-10.0%~10.5%, V-3.5%~4.5%, Cr-
3.5%~4.5%, Nb-0.8%~1.0%, surplus are Ti and inevitable impurity.
3. a kind of rail traffic spring high strength titanium alloy according to claim 1, it is characterised in that:
The weight percent of titanium alloy are as follows: Al-3%, Mo-10%, V-4%, Cr-4%, Nb-1%, surplus are Ti and can not keep away
The impurity exempted from.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610822248.5A CN106435265B (en) | 2016-09-14 | 2016-09-14 | A kind of rail traffic spring high strength titanium alloy |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610822248.5A CN106435265B (en) | 2016-09-14 | 2016-09-14 | A kind of rail traffic spring high strength titanium alloy |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106435265A CN106435265A (en) | 2017-02-22 |
| CN106435265B true CN106435265B (en) | 2018-12-25 |
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| CN201610822248.5A Active CN106435265B (en) | 2016-09-14 | 2016-09-14 | A kind of rail traffic spring high strength titanium alloy |
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Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100580115C (en) * | 2008-07-17 | 2010-01-13 | 西安西工大超晶科技发展有限责任公司 | Beta type titanium alloy and method for producing same |
| CN101787465B (en) * | 2010-03-03 | 2012-11-28 | 洛阳双瑞精铸钛业有限公司 | Low density high casting property titanium alloy material and preparation method thereof |
| KR101418775B1 (en) * | 2012-05-30 | 2014-07-21 | 한국기계연구원 | Beta type titanium alloy with low elastic modulus and high strength |
| CN105779821A (en) * | 2016-05-11 | 2016-07-20 | 西北有色金属研究院 | High-strength and high-toughness damage-tolerance structural titanium alloy |
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2016
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