【摘 要】
：
The material transfer behaviors of Al-hBN coating and NiAl-hBN coating rubbed by Ti6Al4V blade at different linear speeds and single pass depths were studied with a high-speed rub tester. According to
【机 构】
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Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110016, China
【出 处】
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第十一届全国表面工程大会暨第八届全国青年表面工程学术会议
论文部分内容阅读
The material transfer behaviors of Al-hBN coating and NiAl-hBN coating rubbed by Ti6Al4V blade at different linear speeds and single pass depths were studied with a high-speed rub tester. According to the analysis of the blade height variation, the morphologies, EDS and XRD studies of the blade and coating wear scars, coating material transferred to blade during the rubbing with Al-hBN coating. As to NiAl-hBN coating, blade material transfer to coating occurred. Based on the analysis of flash temperature theories proposed by other researchers, a formula was employed to explain the above phen mena. It was found that although the test conditions were same, the attainable temperatures at the rubbing interfaces of the two friction couples were different due to different coating thermo-physical properties. The temperature attained at the NiAl-hBN coating interface can be one point six times the temperature attained at the Al-hBN coating interface. The temperature differences at the interface, the different coating melting points and the blade plastic flow under high temperature were supposed to be the reasons of the distinct material transfer behaviors.
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