发明申请
- 专利标题： Method of removing a case layer from a metal alloy
- 专利标题（中）： 从金属合金去除壳层的方法
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申请号： US11654410申请日： 2007-01-17
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公开(公告)号： US20080169270A1公开(公告)日： 2008-07-17
- 发明人: Joseph Parkos , Curtis H. Riewe , James O. Hansen
- 申请人： Joseph Parkos , Curtis H. Riewe , James O. Hansen
- 专利权人： United Technologies Corporation
- 当前专利权人： United Technologies Corporation
- 主分类号： C23F1/00
- IPC分类号： C23F1/00
摘要：
A method of surface treating a metallic article includes the step of chemically removing a surface layer having titanium alloy alpha-phase precipitation to expose a core having titanium alloy beta-phase. In one example, the chemical removal includes using a first solution having nitric acid and hydrofluoric acid, and a second solution having nitric acid.
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