SYNERGISTIC EFFECTS OF WEAR AND CORROSION ON MASS LOSS OF GZ62K ALLOY IN SIMULATED BODY FLUID FOR ORTHOPEDIC APPLICATION

Siyu Liu, Jianwei Dai, Shengnan Ni, Zhangzhong Wang and Xiaobo Zhang
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Siyu Liu: School of Materials Science and Engineering, Nanjing Institute of Technology, Nanjing 211167, P. R. China
Jianwei Dai: School of Materials Science and Engineering, Nanjing Institute of Technology, Nanjing 211167, P. R. China†Jiangsu Key Laboratory of Advanced Structural, Materials and Application Technology, Nanjing 211167, P. R. China
Shengnan Ni: School of Materials Science and Engineering, Nanjing Institute of Technology, Nanjing 211167, P. R. China
Zhangzhong Wang: School of Materials Science and Engineering, Nanjing Institute of Technology, Nanjing 211167, P. R. China†Jiangsu Key Laboratory of Advanced Structural, Materials and Application Technology, Nanjing 211167, P. R. China
Xiaobo Zhang: School of Materials Science and Engineering, Nanjing Institute of Technology, Nanjing 211167, P. R. China†Jiangsu Key Laboratory of Advanced Structural, Materials and Application Technology, Nanjing 211167, P. R. China

International Journal of Modern Physics C (IJMPC), 2018, vol. 25, issue 07, 1-8

Abstract: The friction and wear behavior of the as-cast Mg–6Gd–2Zn–0.4Zr (wt.%, GZ62K) alloy has been studied under dry and simulated body fluid (SBF) conditions for orthopedic application. The results show that the friction coefficient in SBF is much lower than that under dry sliding condition. The mass loss in SBF is lower than that of dry sliding condition before the corrosion products were removed but higher after they were removed. In SBF, wear is significantly alleviated due to lubrication and corroded film, but corrosion is extremely aggravated by wear debris. It is indicated that corrosion contributes much more mass loss than wear with the increase of sliding time.

Keywords: Magnesium alloy; simulated body fluid; corrosion; wear (search for similar items in EconPapers)
Date: 2018
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DOI: 10.1142/S0218625X19500215

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