材料工程Issue(11)：12-17,22,7.
Mn对Mg-5Al镁合金腐蚀性能的影响
Effects of Mn Addition on Corrosion Resistance of Mg-5Al Magnesium Alloy
摘要
Abstract
The effects of Mn content on microstructure and corrosion behavior in NaCl solution of as-cast Mg-5A1 alloy have been studied. The results show that with the addition of Mn, Al8Mn5 phase forms preferentially and the grain is refined obviously, meanwhile, the continuous or semi-continuous net-like β-Mg17Al12 phase is converted into discontinuous or dispersed one and the amount of β-Mg17 Al12 phase reduce. With increase addition of Mn, the corrosion rate and corrosion current of the alloys are reduced whereas the film and charge resistance are improved, indicating that the corrosion resistance of the alloys is improved remarkably. The alloy with 0. 5% Mn has the best corrosion resistance, and the corrosion rate is only 1. 08mg ·cm-2 · d-1 , which is decreased 72% compared with the alloy without Mn addition.关键词
Mg-5Al/Mn/显微组织/腐蚀性能Key words
Mg-5Al/Mn/microstructure/corrosion property分类
矿业与冶金引用本文复制引用
周桂斌,刘子利,刘希琴,朱晓春,李健..Mn对Mg-5Al镁合金腐蚀性能的影响[J].材料工程,2012,(11):12-17,22,7.基金项目
江苏省科技支撑计划项目(BE2010103) （BE2010103）
