| 摘要 |
PROBLEM TO BE SOLVED: To provide a carburizing method where carburizing time can be reduced even without adding alloy elements and rare earth elements thereto. SOLUTION: In the carburizing method, the surface area of the member to be carburized is increased before carburizing treatment is performed. Further, the increasing rate of the surface area in the member to be carburized is 35 to 70%. COPYRIGHT: (C)2004,JPO&NCIPI
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