【摘要】 在模拟的潮湿大气腐蚀环境下 ,研究了AlSi7Mg0 .3———ZL10 1、电解ZL10 1、A35 6三种合金的组织结构对其腐蚀形貌的影响 .金相组织、扫描电镜腐蚀形貌分析和波谱仪成分分析表明 ,化学元素分布均匀、金相组织均匀细小是电解Al-Si合金具有良好耐蚀性能的原因 .X射线衍射分析表明A35 6合金的杂质相极少 ,这是其具有较好耐蚀性能的重要原因更多还原

【Abstract】 The effect of microstructure on corrosion morphology of ZL101 alloy,Electrolytic ZL101 alloy and A356 alloy in a simulated atmospheric environment with moisture is studied.The experimental results on microstructure and corrosion morphology by SEM and chemical composition analysis by WDS indicate that the excellent corrosion resistance of electrolytic Al-Si alloy is related to both the homogeneity of chemical composition and the fine microstructure of alloy.The results of XDA indicate that less amount of impurity phase in A356 is responsible for its better corrosion resistance.更多还原