发明授权
US5447582A Method to refine the microstructure of .alpha.-2 titanium
aluminide-based cast and ingot metallurgy articles
失效
改进α-2钛铝化物基铸造和铸锭冶金制品的微观结构的方法
- 专利标题： Method to refine the microstructure of .alpha.-2 titanium aluminide-based cast and ingot metallurgy articles
- 专利标题（中）： 改进α-2钛铝化物基铸造和铸锭冶金制品的微观结构的方法
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申请号： US172355申请日： 1993-12-23
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公开(公告)号： US5447582A公开(公告)日： 1995-09-05
- 发明人: Daniel Eylon , Leslie S. Apgar
- 申请人： Daniel Eylon , Leslie S. Apgar
- 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： C22F1/18
- IPC分类号： C22F1/18 ; C22C14/00 ; C22F1/00
摘要：
The microstructure of alpha-2 and orthorhombic titanium aluminide alloy cast and ingot metallurgy articles is refined by: (a) hydrogenating the article at a temperature at or slightly below the .beta.-transus temperature of the alloy; (b) cooling the article, under a positive partial pressure of hydrogen, to a temperature about 20 to 40 percent below the .beta.-transus; and (c) dehydrogenating the article.
公开/授权文献
- USD304188S Portable handset radio telephone 公开/授权日：1989-10-24
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