发明名称 |
HIGH-STRENGTH, HIGH-DUCTILITY TITANIUM ALLOY AND PROCESS FOR PREPARING THE SAME |
摘要 |
<p>A high strength, high ductility titanium alloy comprising O, N and Fe as strengthening elements and the balance substantially Ti, the contents of the strengthening elements satisfying the following relationships (1) to (3): (1) from 0.9 to 2.3% by weight of Fe, (2) up to 0.05% by weight of N, and (3) an oxygen equivalent value Q, which is defined by the formula mentioned below, of 0.34 to 1.00 <MATH> wherein ÄOÜ is an oxygen content (% by weight), ÄNÜ is a nitrogen content (% by weight) and ÄFeÜ is an iron content (% by weight), the titanium alloy having a tensile strength of at least 700 MPa and an elongation of at least 15%. Part of Fe may be replaced with Cr and/or Ni. Fe, Cr and Ni may be introduced from a carbon steel or stainless steel, or they may be introduced from sponge titanium containing these elements. <IMAGE></p> |
申请公布号 |
EP0767245(A1) |
申请公布日期 |
1997.04.09 |
申请号 |
EP19960910213 |
申请日期 |
1996.04.19 |
申请人 |
NIPPON STEEL CORPORATION;TOHO TITANIUM CO., LTD. |
发明人 |
SOEDA, SEIICHI;FUJII, HIDEKI;OKANO, HIROYUKI;HANAKI, MICHIO |
分类号 |
C22C14/00;(IPC1-7):C22C14/00;C22C1/02 |
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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