发明名称 |
Method of improving the resistance of Ti-based alloys to corrosion in deep-well environments |
摘要 |
A method of improving the resistance of oil-well tubular products made of alpha -type or ( alpha + beta )-type Ti-based alloys to corrosion in a deep-well environment at high temperatures is disclosed. The method is characterized by adding, as an alloying element, (A) at least one platinum group metal in an amount of 0.02-0.20% by weight, or (B) at least one platinum group metal in an amount of 0.005-0.12% by weight and optionally at least one of Ni, Co, W, and Mo in an amount of 0.05-2.00% by weight.
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申请公布号 |
US4859415(A) |
申请公布日期 |
1989.08.22 |
申请号 |
US19870114016 |
申请日期 |
1987.10.29 |
申请人 |
SUMITOMO METAL INDUSTRIES, LTD. |
发明人 |
SHIDA, YOSHIAKI;KITAYAMA, SHIRO;NISHIKAWA, TOMIO |
分类号 |
C22C14/00 |
主分类号 |
C22C14/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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