1. College of Materials Science and Engineering, Chongqing University, Chongqing 400044, China
2. Southwest Institute of Technology and Engineering, Chongqing 401329, China
3. China Ship Development and Design Center, Wuhan 430064, China
4. Military Installations Department, Army Logistics Academy of PLA, Chongqing 401331, China
5. State Key Laboratory of Tribology, Tsinghua University, Beijing 100084, China