Effect of Hybrid Surface Treatment Composed of Plasma Nitriding and DLC Coating on Friction-Wear Properties and Fatigue Strength of Alloy Tool Steel SKD11

被引：0
|
作者：
Morita T. [1 ]
Ding X. [2 ]
Takesue S. [1 ]
Hirata K. [3 ]
机构：
[1] Faculty of Mechanical Engineering, Kyoto Institute of Technology, Gosyonouchi-cho, Matsugasaki, Sakyo-ku, Kyoto
[2] Department of Mechanical and System Engineering, Graduate School of Science and Technology, Kyoto Institute of Technology, Gosyokaido-cho, Matsugasaki, Sakyo-ku, Kyoto
[3] Kawasaki Nitriding Co., Ltd., Kojima-cho, Kawasaki-ku, Kawasaki
来源：
Zairyo/Journal of the Society of Materials Science, Japan | 2024年 / 73卷 / 04期
关键词：
Alloy tool steel; DLC coating; Fatigue strength; Friction-wear properties; Plasma nitriding;
D O I：
10.2472/jsms.73.328
中图分类号：
学科分类号：
摘要：
In this study, we investigated the effect of the hybrid surface modification composed of plasma nitriding and DLC (diamond-like carbon) coating on the friction-wear properties and fatigue strength of alloy tool steel SKD11. Plasma nitriding and DLC coating improved the friction-wear properties, respectively. The hybrid surface modification was more effective to improve the friction-wear properties, because the planarity of the DLC layers was maintained by the formed hardened layer. The increase of hydrogen quantity in the DLC layers reduced the friction coefficient and improved the wear resistance. DLC coating suppressed fatigue crack initiation from the surfaces of the untreated and plasma-nitrided materials; however, its effect was not marked to improve the fatigue strength. © 2024 The Society of Materials Science, Japan.
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页码：328 / 334
页数：6
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