发明名称 |
Process for preparing titanium and titanium alloy materials having a fine equiaxed microstructure. |
摘要 |
<p>According to the present invention, alpha titanium and titanium alloy materials having a fine equiaxed microstructure are produced. A titanium, alpha titanium alloy or ( alpha + beta ) titanium alloy material is hydrogenated in an amount of 0.02 to 2% by weight. If necessary, the hydrogenated material is subjected to pretreatment [i.e., heated above 700 DEG C ( beta transformation point)] and/or working (i.e., working at 450 to 950 DEG C, or temperatures above beta transformation point and below 1100 DEG C). The material is then aged at 10 to 530 DEG C or 10 to 700 DEG C (in the case of working at temperatures above beta transformation point), and finally dehydrogenated and recrystallized to prepared a material having a fine equiaxed microstructure.</p> |
申请公布号 |
EP0411537(A1) |
申请公布日期 |
1991.02.06 |
申请号 |
EP19900114593 |
申请日期 |
1990.07.30 |
申请人 |
NIPPON STEEL CORPORATION |
发明人 |
KIMURA, KINICHI, C/O NIPPON STEEL CORPORATION;HAYASHI, MASAYUKI, C/O NIPPON STEEL CORPORATION;ISHII, MITSUO, C/O NIPPON STEEL CORPORATION;YOSHIMURA, HIROFUMI, C/O NIPPON STEEL CORPORATION;TAKAMURA, JIN-ICHI, C/O NIPPON STEEL CORPORATION |
分类号 |
C22C14/00;C22F1/02;C22F1/18 |
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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