快速凝固耐热铝合金的耐蚀性能  

Corrosion-resistance of rapidly solidified aluminum alloys

作　　者：周涛[1] 周科朝[1] 

机构地区：[1]中南大学粉末冶金国家重点实验室,湖南长沙410083

出　　处：《粉末冶金材料科学与工程》2003年第2期152-155,共4页Materials Science and Engineering of Powder Metallurgy

摘　　要：采用腐蚀失重法和极化曲线的测定,研究了FVS0611,FVS0812,2618,2618+Sc,2014,6061合金在人工模拟海水和海洋环境中的耐蚀性能。结果表明:2014,2618和2618+Sc合金腐蚀较严重,RS/PM生产的FVS0611,FVS0812和6061合金腐蚀速率较小,出现明显的钝化现象,并因为加工残余应力导致出现钝化-腐蚀-再钝化现象。Through corrosion weight-losing and passivation curve test, the corrosion-resistance property of FVS0611, FVS0812, 6061, 2618, 2618q-Sc and 2014 alloys was studied under man-made seawater and oceanic condition. The results show that FVS0611, FVS0812 and 6061 alloys prepared by RS/PM have low corrosion while 2618, 2618q-Sc and 2014 alloys have high corrosion. FVS0611, FVS0812 and 6061 alloys have obvious passivation. In the meantime, phenomenon of passivation-corrosion-passivation occurs among them due to the existence of process residual stress.

关 键 词：快速凝固 耐热铝合金 耐蚀 极化曲线 钝化 

分 类 号：TG146.15[一般工业技术—材料科学与工程]