发明名称 |
RESOURCE SAVING-TYPE TITANIUM ALLOY MEMBER POSSESSING IMPROVED STRENGTH AND TOUGHNESS AND METHOD FOR MANUFACTURING THE SAME |
摘要 |
[Object];To provide, at low cost, a resource saving-type titanium alloy that uses alloy elements more abundant in resources and more inexpensively available compared to conventional titanium alloys, and, when added even in a smaller amount than the conventional alloys, can simultaneously realize both high strength and high toughness;[Solution];Provided is a titanium alloy member having excellent strength and toughness, consisting of, in mass %, Al: more than or equal to 4.5% and less than 5.5%, Fe: more than or equal to 1.3% and less than 2.3%, Si: more than or equal to 0.25% and less than 0.50%, O: more than or equal to 0.05% and less than 0.25%, and the balance: titanium and unavoidable impurities. The titanium alloy member has a microscopic structure that is an acicular structure having an acicular α phase with a mean width of less than 5 μm. |
申请公布号 |
US2015191812(A1) |
申请公布日期 |
2015.07.09 |
申请号 |
US201314408530 |
申请日期 |
2013.08.14 |
申请人 |
NIPPON STEEL & SUMITOMO METAL CORPORATION |
发明人 |
Mori Kenichi;Fujii Hideki |
分类号 |
C22F1/18;C22F1/00;C22C14/00 |
主分类号 |
C22F1/18 |
代理机构 |
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代理人 |
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主权项 |
1. A titanium alloy member consisting of, in mass %,
Al: more than or equal to 4.5% and less than 5.5%, Fe: more than or equal to 1.3% and less than 2.3%, Si: more than or equal to 0.25% and less than 0.50%, O: more than or equal to 0.05% and less than 0.25%, and the balance: titanium and unavoidable impurities, wherein the titanium alloy member has a microscopic structure that is an acicular structure having an acicular α phase with a mean width of less than 5 μm. |
地址 |
Tokyo JP |