改良铸造铝硅合金电化学腐蚀试验及分析  

Electrochemical Corrosion Test and Analysis of Modified Cast Aluminum-Silicon Alloy

作　　者：范应光[1] 陈汝霞[1] 杨启杰[2] 苏广才[2] 黄思娟[2] 

机构地区：[1]广西机电职业技术学院,广西南宁530007 [2]广西大学材料科学与工程学院,广西南宁530004

出　　处：《铸造》2014年第2期190-192,共3页Foundry

基　　金：广西科学基金资助项目(桂科基0731009)

摘　　要：在传统ZL101铸造铝硅合金的基础上,通过添加Cu、Ni、Mn、V、RE等合金元素,研制了改良铸造铝硅合金,并对该改良合金进行了电化学腐蚀试验。试验结果表明,在3.5%NaCl系统下,改良铸造铝硅合金自腐蚀电位远高于传统ZL101铸造铝硅合金,自腐蚀电流密度远小于传统ZL101铸造铝硅合金,耐腐蚀性能良好。A modified cast Al-Si alloy was developed by adding alloying elements such as Cu, Ni, Mn, V, RE, on the basis of traditional ZL101 cast aluminum-silicon alloy, and the electrochemical corrosion test was carried out for the modified alloy. The results show that in the 3.5%NaCl system, the corrosion potential of modified cast aluminum-silicon alloy from is much higher than traditional ZL101 cast aluminum-silicon alloy, corrosion current density is smaller than the traditional ZL 101 cast AI-Si alloy, the corrosion resistance is good.

关 键 词：改良 铸造铝硅合金 电化学腐蚀 

分 类 号：TG292[金属学及工艺—铸造]