Sliding member and piston ring |
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申请号 | US15736392 | 申请日 | 2017-02-28 | 公开(公告)号 | US10036472B2 | 公开(公告)日 | 2018-07-31 |
申请人 | KABUSHIKI KAISHA RIKEN; | 发明人 | Masaki Moronuki; | ||||
摘要 | Provided is a sliding member capable of achieving excellent wear resistance and high coating adhesion under harsh sliding conditions without subjecting a base member to nitriding treatment. The sliding member includes a base member made of a steel material and a hard coating that is formed on the base member and having a surface serving at least as a sliding surface. The hard coating has a Young's modulus having a distribution to increase first in a depth direction directed from an interface between the hard coating and the base member to the surface, to become maximum at a predetermined depth, and then to decrease in the depth direction directed from the interface to the surface. | ||||||
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