SHANDONG SCIENCE ›› 2016, Vol. 29 ›› Issue (1): 33-38.doi: 10.3976/j.issn.1002-4026.2016.01.006

• New Materials • Previous Articles     Next Articles

Friction and wear research of artificial hip joint with microarc oxidation WE43 magnesium alloy

GAO Wen1, WANG Shouren1*, ZHOU Jixue2, QIAO Yang1   

  1. 1.School of Mechanical Engineering, University of Jinan, Jinan 250022, China; 2.Institute of New Materials,Shandong Academy of Sciences, Jinan 250014, China
  • Received:2015-09-07 Published:2016-02-20 Online:2016-02-20

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Abstract:

We performed microarc oxidation for artificial hip joints with WE43 magnesium alloy in sodium silicate system. We employed scanning electron microscopy (SEM) to observe the microstructure of microarc oxidation coating and then conducted friction and wear test to investigate its wear mechanism.Results show that uniform and dense oxidation coating can be acquired after microarc oxidation.The coating has a certain friction reduction and anticyclic fatigue capabilities, so its antiwear effect is better.The wear mechanism of microarc oxidation of WE43 magnesium alloy is only abrasive wear for light and medium loads. However,spalling wear and abrasive wear coexist for heavy loads.

Key words: magnesium alloy, artificial hip joint, microarc oxidation, friction and wear

CLC Number: 

  • TG174.451

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