发明授权
- 专利标题: Method to produce hot-worked gamma titanium aluminide articles
- 专利标题(中): 生产热加工的钛酸铝制品的方法
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申请号: US161620申请日: 1993-12-06
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公开(公告)号: US5424027A公开(公告)日: 1995-06-13
- 发明人: Daniel Eylon
- 申请人: Daniel Eylon
- 申请人地址: DC Washington
- 专利权人: The United States of America as represented by the Secretary of the Air Force
- 当前专利权人: The United States of America as represented by the Secretary of the Air Force
- 当前专利权人地址: DC Washington
- 主分类号: C22C1/04
- IPC分类号: C22C1/04 ; C22F1/18 ; B22F3/00 ; B22F7/00
摘要:
A method for producing hot worked gamma titanium aluminide alloy articles which comprises the steps of:(a) providing a prealloyed gamma titanium aluminide alloy powder;(b) filling a suitable die or mold with the powder;(c) hot isostatic press (HIP) consolidating the powder in the filled mold at a pressure of 30 Ksi or greater and at a temperature below the alpha-two+gamma eutectoid temperature of the alloy to produce a preform;(d) hot working the preform at a temperature at or below the alpha-two+gamma eutectoid temperature of the alloy; and(e) optionally, heat treating the hot worked article.By hot working the preform at or below the alpha-two+gamma eutectoid temperature, the fine, uniform, isotropic microstructure of the preform is maintained, allowing a large metal flow and good shape definition with no edge cracking.
公开/授权文献
- US6163919A Scraper 公开/授权日:2000-12-26
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