Corrosion behavior of a CuCrNiAl alloy in the presence of NaCl deposit

作     者：XU Tao CHANG Limin LIU Jianhua 

作者机构：Department of Applied Technology Daqing Petroleum Institute Daqing 163318 China Analysis and Measure Center Jilin Normal University Siping 136000 China Key Laboratory of Metastable Materials Science and Technology Yanshan University Qinhuangdao 066004 China 

出 版 物：《Rare Metals》 (稀有金属（英文版）)

年 卷 期：2006年第25卷第3期

页      面：210-215页

核心收录：

学科分类：080503[工学-材料加工工程] 0806[工学-冶金工程] 08[工学] 0805[工学-材料科学与工程（可授工学、理学学位）] 080502[工学-材料学] 0703[理学-化学] 0702[理学-物理学] 

主　　题：CuCrNiAl alloy corrosion NaCl high temperature 

摘      要：The corrosion behavior of a CuCrNiAl alloy with NaCl deposit at 700 and 900℃ was studied by means of metalloscope, XRD, SEM/EDX, and thermogravimetric analysis. The results indicated that the corrosion of the CuCrNiAl alloy beneath the NaCl deposit is severe; the corrosion production is loose and easy to scale off; the Cr phase is easier to erode than the Cu phase, and the contents of Cu and Cr decrease when the content of Ni increases in the matrix of the alloy beneath the corrosion region. The effects of distortion on the corrosion of the CuCrNiAl alloy were discussed, and the acceleration mechanisms of NaCl on the corrosion were also discussed.