Improving corrosive wear resistance of Mg-Zn-Y-Zr alloys through heat treatment  

作　　者：S.D.Wang M.Y.Wu D.K.Xu En-hou Han 

机构地区：[1]Northwestern Polytechnical University,Xi’an 710072,China [2]Key Laboratory of Nuclear Materials and Safety Assessment,Chinese Academy of Sciences,Institute of Metal Research,Shenyang 110016,China [3]Department of Chemical and Materials Engineering,University of Alberta,Edmonton T6G 2G6,Canada

出　　处：《Journal of Magnesium and Alloys》2023年第6期1981-1995,共15页镁合金学报（英文）

基　　金：the National Natural Science Foundation of China Projects under Grant[Nos.5207011217,51871211 and 51701129]。

摘　　要：The wear behavior of an as-received Mg-Zn-Y-Zr alloy before and after a facile heat treatment was investigated under sliding in air and 0.5 wt.%NaCl solution.Results revealed that the wear resistance of the alloy was remarkably enhanced after the heat treatment,irrespective of testing condition.The wear mechanism was predominantly abrasive wear accompanied by oxidation under the dry sliding condition,while corrosive wear was dominant under sliding in the NaCl solution.The superior corrosive wear resistance was attributed to the homogenous distribution of fine I-phase precipitates in the alloy by the heat treatment,leading to a reduction in wear,corrosion as well as wear-corrosion synergy.The wear-accelerated corrosion rate was remarkably alleviated after the heat treatment.

关 键 词：Magnesium alloy Heat treatment CORROSION WEAR TRIBOCORROSION 

分 类 号：TG146.22[一般工业技术—材料科学与工程] TG156[金属学及工艺—金属材料]