Fatigue Delamination Characteristics of Plasma Sprayed Coatings under Fretting
来源期刊：材料热处理学报2004年第5期
论文作者：XU Bin-shi HAN Jian-min ZHOU Zhong-rong LIU Shi-can XU Xiang-yang
关键词：Plasma spraying; Coating; Fretting wear; Fatigue delamination; Contact mechanics;
摘 要：The fretting wear behavior of plasma spraying CoCrW and Cr3C2-NiCr coatings were investigated. The results showed both plasma spraying coatings were inferior to K417 nickel superalloy in the fretting wear resistance. The characterized fatigue delamination of the plasma sprayed coatings was evidently different from that of the homogeneous materials. The lamellar cohesion, oxide inclusions and porosity were critical factors that controlled the fretting wear resistance. In the view of contact mechanics, the fretting wear behavior of plasma spraying coatings was characterized.
XU Bin-shi1，HAN Jian-min2，ZHOU Zhong-rong3，LIU Shi-can1，XU Xiang-yang2
(1.Institute of Surface Engineering, Chinese Society of Mechanical Engineering, Beijing 100074, China;
2.Institute of Materials Science and Engineering, Beijing Jiaotong University, Beijing 100044, China;
3.Institute of Tribology, Southwest Jiaotong University, Chengdu 610031, China)
摘要:The fretting wear behavior of plasma spraying CoCrW and Cr3C2-NiCr coatings were investigated. The results showed both plasma spraying coatings were inferior to K417 nickel superalloy in the fretting wear resistance. The characterized fatigue delamination of the plasma sprayed coatings was evidently different from that of the homogeneous materials. The lamellar cohesion, oxide inclusions and porosity were critical factors that controlled the fretting wear resistance. In the view of contact mechanics, the fretting wear behavior of plasma spraying coatings was characterized.
关键词:Plasma spraying; Coating; Fretting wear; Fatigue delamination; Contact mechanics;
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