| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a rolling member having excellent pitting strength, spalling strength and bending strength of dedendum, and to provide a production method thereof. <P>SOLUTION: The rolling member has a first quench hardened layer 1 which is formed on a surface layer of the rolling member and has a parent phase taking the form of martensite phase which forms a solid solution with carbon of 0.35 to 0.8 wt.%, and a second quench hardened layer 2 which is formed at a deeper layer under the first quench hardened layer and has a parent phase containing at least either one of martensite phase or bainite phase which forms a solid solution with carbon of 0.07 to 0.3 wt% and contains cementite dispersed therein in a content of 2 to 20% by volume. <P>COPYRIGHT: (C)2006,JPO&NCIPI</p> |
