JPS6428348A - Manufacture of beta-type titanium alloy - Google Patents
Manufacture of beta-type titanium alloyInfo
- Publication number
- JPS6428348A JPS6428348A JP18427787A JP18427787A JPS6428348A JP S6428348 A JPS6428348 A JP S6428348A JP 18427787 A JP18427787 A JP 18427787A JP 18427787 A JP18427787 A JP 18427787A JP S6428348 A JPS6428348 A JP S6428348A
- Authority
- JP
- Japan
- Prior art keywords
- beta
- annealing
- transformation point
- cold working
- temp
- 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.)
- Granted
Links
Landscapes
- Heat Treatment Of Nonferrous Metals Or Alloys (AREA)
Abstract
PURPOSE:To secure sufficiently fine recrystallized structure even when relatively low cold draft is adopted, by specifying the conditions under which annealing before cold working is carried out. CONSTITUTION:Annealing is applied in an (alpha+beta) two-phase region of [the transformation point of beta-type Ti alloy - (5-60 deg.C)] and cold working is applied at >=20% draft, followed by solution heat treatment at a temp. of the beta-transformation point or above. By carrying out annealing before cold working as mentioned above, a two-phase structure in which pro-eutectoid alpha-phase is uniformly distributed is formed, by which working strain is dispersed at the time of cold working and nucleation is increased in number at the time of recrystallization. As a result, the refining and uniformization of recrystallized structure after solution heat treatment can be attained. When the above annealing temp. exceeds (beta-transformation point -5 deg.C), the temp. sometimes exceeds, locally, the beta-transformation point owing to the microscopic nonuniformity of alloy composition or nonuniform heating, etc., at the time of annealing. On the other hand, cold working is extremely deteriorated when the annealing temp. is below (beta-transformation point -60 deg.C).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62184277A JPH0692628B2 (en) | 1987-07-23 | 1987-07-23 | Method for producing β-type titanium alloy |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62184277A JPH0692628B2 (en) | 1987-07-23 | 1987-07-23 | Method for producing β-type titanium alloy |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6428348A true JPS6428348A (en) | 1989-01-30 |
| JPH0692628B2 JPH0692628B2 (en) | 1994-11-16 |
Family
ID=16150502
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62184277A Expired - Fee Related JPH0692628B2 (en) | 1987-07-23 | 1987-07-23 | Method for producing β-type titanium alloy |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0692628B2 (en) |
-
1987
- 1987-07-23 JP JP62184277A patent/JPH0692628B2/en not_active Expired - Fee Related
Non-Patent Citations (2)
| Title |
|---|
| BETA TITANIUM ALLOYS IN THE 80 S=1984 * |
| FUNDAMENTALS OF PHYSICAL METALLURGY=1975 * |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0692628B2 (en) | 1994-11-16 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |