发明授权
US5956559A Irregular shape change of tungsten/matrix interface in tungsten based
heavy alloys
失效
钨基重合金中钨/基体界面的不规则形状变化
- 专利标题： Irregular shape change of tungsten/matrix interface in tungsten based heavy alloys
- 专利标题（中）： 钨基重合金中钨/基体界面的不规则形状变化
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申请号： US032292申请日： 1998-02-27
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公开(公告)号： US5956559A公开(公告)日： 1999-09-21
- 发明人: Heung Sub Song , Eun Pyo Kim , Seong Lee , Joon Woong Noh , Moon Hee Hong , Woon Hyung Baek
- 申请人： Heung Sub Song , Eun Pyo Kim , Seong Lee , Joon Woong Noh , Moon Hee Hong , Woon Hyung Baek
- 申请人地址： KRX Daejon
- 专利权人： Agency for Defense Development
- 当前专利权人： Agency for Defense Development
- 当前专利权人地址： KRX Daejon
- 优先权： KRX97/38398 19970812
- 主分类号： C22C29/00
- IPC分类号： C22C29/00 ; B22F3/10 ; C22C1/04 ; C22C27/04 ; C22F1/18 ; B22F3/24
摘要：
A method for producing an irregular tungsten/matrix interface in tungsten based heavy alloy is disclosed. The method involves a cyclic heat treatment and resintering at above liquidus temperature for tungsten heavy alloys consisting of 80 to 98 weight % tungsten and remainder of matrix phase. The sintered specimens are cyclically heat treated at above 1000.degree. C. and resintered at liquidus temperature of the matrix phase for one minute to 4 hours at a constant temperature.
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