Synergistic Effects of Corrosion and Wear Resistance of Mg-3Gd-1Zn Alloy in Simulated Body Fluid
NIE Yujin1,2, DAI Jianwei1,2, ZHANG Xiaobo1,2
1 School of Materials Science and Engineering, Nanjing Institute of Technology, Nanjing 211167 2 Jiangsu Key Laboratory of Advanced Structural Materials and Application Technology, Nanjing 211167
Abstract: The Mg-3Gd-1Zn alloy was performed by solution treated at different temperatures and then aged. The corrosion behavior of alloys was tested by mass loss,the friction and wear properties in simulated body fluid (SBF) were evaluated by friction and wear tester, and the mass loss caused by corrosion and wear was quantitatively evaluated. The corrosion rate of the alloy in SBF accompanied with wear was compared with that without wear, and the wear behavior of the alloy in SBF was also compared with that under dry sliding condition. The results showed that the eutectic phase decreased, the grain size increased, the hardness increased slightly, and the corrosion rate decreased first and then increased with the increase of solution temperature. The friction coefficient in SBF with wear was about 33%—55% of that under dry sliding condition. The wear rate in SBF was 1.3%—1.5% of that under dry sliding condition. The wear would obviously accelerate the corrosion rate. The corrosion rate of alloy in SBF with wear under different conditions was 11—19 times of that without wear. In general, the corrosion rate was increased significantly due to wear, and wear was obviously impeded by SBF.
聂豫晋, 戴建伟, 章晓波. Mg-3Gd-1Zn合金在模拟体液中的腐蚀与磨损协同作用[J]. 材料导报, 2019, 33(18): 3057-3061.
NIE Yujin, DAI Jianwei, ZHANG Xiaobo. Synergistic Effects of Corrosion and Wear Resistance of Mg-3Gd-1Zn Alloy in Simulated Body Fluid. Materials Reports, 2019, 33(18): 3057-3061.