发明授权
US5074907A Method for developing enhanced texture in titanium alloys, and articles
made thereby
失效
在钛合金中发展增强纹理的方法及其制造方法
- 专利标题: Method for developing enhanced texture in titanium alloys, and articles made thereby
- 专利标题(中): 在钛合金中发展增强纹理的方法及其制造方法
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申请号: US394927申请日: 1989-08-16
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公开(公告)号: US5074907A公开(公告)日: 1991-12-24
- 发明人: Richard A. Amato , Andrew P. Woodfield , Michael F. X. Gigliotti, Jr. , John R. Hughes , Lee C. Perocchi
- 申请人: Richard A. Amato , Andrew P. Woodfield , Michael F. X. Gigliotti, Jr. , John R. Hughes , Lee C. Perocchi
- 申请人地址: OH Cincinnati
- 专利权人: General Electric Company
- 当前专利权人: General Electric Company
- 当前专利权人地址: OH Cincinnati
- 主分类号: B22F3/20
- IPC分类号: B22F3/20 ; B22F3/24 ; C22C1/04 ; C22C14/00 ; C22F1/18
摘要:
Enhanced crystallographic texture is developed in an alpha or alpha-beta titanium alloy having a dispersion of particles therein, by heating the alloy to essentially the all beta phase range and mechanically hot working the alloy in this range. The mechanical working is preferably accomplished by extrusion, rolling, or forging. The particles are stable during working, and prevent the formation of random texture in recrystallized beta phase grains at the working temperature. The particles are preferably oxides formed from rare earth elements such as erbium or yttrium, that are introduced into the alloy during manufacture. The alloys processed according to the invention are preferably prepared by powder metallurgy to achieve a uniform microstructure prior to working. A particularly suitable alpha-beta (but near alpha) titanium alloy contains aluminum, zirconium, hafnium, tin, columbium, molybdenum, tungsten, ruthenium, germanium, silicon, and erbium.
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