Effect of Surface Texturing-Plasma Surface Chromizing Duplex Treatment on Wear Resistance of TA2 Pure Titanium
LIN Naiming 1 , LEI Xin 1 , WANG Huanhuan 1 , YUAN Shuo 1 , WANG Qiang 1 , LEI Chenqing 1 , YAN Jiangshan 1 , WANG Weihua 2 , MA Guanshui 3 , ZENG Qunfeng 4
1. Taiyuan University of Technology, Taiyuan 030024, China;
2. AVIC Aerospace Life-Support Industries, Ltd., Xiangyang 441003, China;
3. Key Laboratory of Marine Materials and Related Technologies of Chinese Academy of Sciences/Zhejiang Key Laboratory of Marine Materials and Protective Technologies, Chinese Academy of Sciences, Ningbo 315201, China;
4. Key Laboratory of Education Ministry for Modern Design and Rotor-Bearing System, Xi’an Jiaotong University,Xi’an, 710049, China
Abstract：A chromium modified layer was prepared by laser surface texturing-double glow plasma surface alloying duplex treatment to improve the wear resistance of TA2 pure titanium. And the tribological behavior of the duplex treated sample at room temperature and 600 ℃ was investigated. The results showed that the continuous and dense chromium layer was fabricated using plasma alloying technology on the surface of TA2 with uniform circular texture unit. The thickness of the chromium layer was 55 μm, which is mainly composed of solid solution and CrTi and Cr2Ti compound phases. Chromizing treatment significantly improved the surface hardness of TA2. The laser surface texturing-plasma surface chromizing duplex treatment significantly improved the wear resistance of TA2 at room temperature and 600 ℃ . In terms of mass loss, the duplex treated sample was reduced by 77.2% and 75% compared to the TA2 matrix at room temperature and high temperature respectively.
2022, 
