发明名称 |
HIGH-STRENGTH TITANIUM ALLOY MEMBER AND PROCESS FOR PRODUCTION THEREOF |
摘要 |
A titanium alloy material having high overall strength is produced by applying nitrogen to ±-² type titanium alloys that are widely used. A production method for a titanium alloy member includes preparing a titanium alloy material for sintering as a raw material of a sintered body; nitriding the titanium alloy material for sintering, thereby forming a nitrogen compound layer and/or a nitrogen solid solution layer in a surface layer of the titanium alloy material for sintering and yielding a nitrogen-containing titanium alloy material for sintering; mixing the titanium alloy material for sintering and the nitrogen-containing titanium alloy material for sintering, thereby yielding a titanium alloy material for sintering mixed with nitrogen-containing titanium alloy material; sintering the titanium alloy material for sintering mixed with nitrogen-containing titanium alloy material, thereby bonding the material each other and dispersing nitrogen contained in the nitrogen-containing titanium alloy material for sintering in a condition in which nitrogen is uniformly dispersed into an entire inner portion of the sintered body by solid solution. |
申请公布号 |
EP2607507(A4) |
申请公布日期 |
2015.09.23 |
申请号 |
EP20110818260 |
申请日期 |
2011.08.15 |
申请人 |
NHK SPRING CO., LTD. |
发明人 |
ARAOKA, YUJI;SHIRAISHI, TOHRU;ONO, YOSHIKI |
分类号 |
C22C1/04;B22F1/00;B22F3/14;B22F3/24;B22F9/04;C22C14/00;C22F1/00;C22F1/18;C23C8/24 |
主分类号 |
C22C1/04 |
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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