(1. 西南交通大学 材料先进技术教育部重点实验室 摩擦学研究所，成都 610031；
2. 西南交通大学 生命科学与工程学院，成都 610031)
摘 要:
关键字: 钛；生理盐水；Hank’s溶液；微动腐蚀；复合微动
（1. Tribology Research Institute, Key Laboratory of Advanced Materials Technology Ministry of Education, Southwest Jiaotong University, Chengdu 610031, China;
2. School of Life Science and Engineering, Southwest Jiaotong University, Chengdu 610031, China）
Abstract:The dual-motion fretting corrosion tests of pure titanium (TA2) flats against TA2 ball were carried out in Hank’s and saline solutions by a hydraulic fretting tester. During the tests, the contact angle of two fretting pairs was set to 45˚, the applied normal load was varied from 100 N to 300 N, and the number of fretting cycles was 5×104. The kinetic behaviours of the dual-motion fretting of TA2/TA2 pairs were analyzed. The fretting damages on the TA2 plate were characterized through optical microscope and scanning electrical microscope (SEM). The results indicate that the F—D curves of TA2/TA2 pairs present two types of shapes, i.e. the trapezoidal and elliptical. The volume-loss of TA2 plate is smaller in Hank’s solution than that of in saline solution, which is consistent with the analyses of friction dissipation energy. The fretting wear mechanisms of TA2 plate are mainly identified as abrasive wear and delamination mechanism in both media.
Key words: titanium; saline solution; Hank’s solution; fretting corrosion; dual-motion fretting
