Effects of increase extent of voltage on wear and corrosion resistance of micro-arc oxidation coatings on AZ91D alloy

被引：8

作者：

吕维玲 ^{[1
]}

陈体军 ^{[1
]}

马颖 ^{[1
]}

徐卫军 ^{[1
,2
]}

杨健 ^{[1
]}

郝远 ^{[1
]}

机构：

[1] State Key Laboratory of Gansu Advanced Nonferrous Metal Materials,Lanzhou University of Technology

[2] College of Chemical and Industry,Gansu Lianhe University

来源：

TransactionsofNonferrousMetalsSocietyofChina | 2008年 / 18(S1)卷 / S1期

关键词：

AZ91D magnesium alloy; micro-arc oxidation; increase extent; corrosion resistance; wear resistance;

D O I：

暂无

中图分类号：

TG146.22 [];

学科分类号：

080502 ;

摘要：

<正>The effects of increase extent of voltage on the wear resistance and corrosion resistance of micro-arc oxidation(MAO) coatings on AZ91D magnesium alloy were investigated in silicate electrolyte.The results show that with increasing extent of voltage, both of the thickness and bonding force of MAO coatings first increase,and then decrease.These parameters are all up to their maximum values when the increase extent of voltage is 20 V.The roughness of the coatings always increases.The coating has the best corrosion resistance when the increase extent of voltage is not below 25 V,and the coating has the best wear resistance when the increase extent of voltage is 10 V.The wear mechanisms for the micro-arc oxidation are abrasive wear and micromachining wear. These are related to their microstructures.

引用

页码：354 / 360

页数：7

共 8 条

[1] AZ91D镁合金在硅酸盐体系下微弧氧化配方的优化 [J].