| 发明名称 |
FINE FERRITE-BASED STRUCTURE STEEL AND PRODUCTION METHOD THEREOF |
| 摘要 |
A fine ferrite-based steel is disclosed, wherein at least 60% of the ferrite grain boundary is a large angle grain boundary of at least 15°, and the mean ferrite grain size is not more than 2.5 mum. The fine ferrite-based steel of the invention has a high strength and a long fatigue life.
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| 申请公布号 |
US2002014285(A1) |
申请公布日期 |
2002.02.07 |
| 申请号 |
US19980157393 |
申请日期 |
1998.09.21 |
| 申请人 |
HAYASHI TOHRU;TORIZUKA SHIRO;TSUZAKI KANEAKI;NAGAI KOTOBU;UMEZAWA OSAMU |
发明人 |
HAYASHI TOHRU;TORIZUKA SHIRO;TSUZAKI KANEAKI;NAGAI KOTOBU;UMEZAWA OSAMU |
| 分类号 |
C21D8/00;C21D8/02;C22C38/04;(IPC1-7):C22C38/00 |
主分类号 |
C21D8/00 |
| 代理机构 |
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