INTERNAL CHLORINATION OF Ni-Cr-Ce ALLOY EXPOSURE TO CHLORINE AT 575℃
作者机构:Department of Materials Science and Engineering Zhejiang UniversityHangzhou 310027
出 版 物:《Transactions of Nonferrous Metals Society of China》 (中国有色金属学报(英文版))
年 卷 期:1996年第6卷第1期
页 面:106-109页
核心收录:
学科分类:0806[工学-冶金工程] 08[工学] 0818[工学-地质资源与地质工程] 0815[工学-水利工程] 0805[工学-材料科学与工程(可授工学、理学学位)] 080502[工学-材料学] 0813[工学-建筑学] 0703[理学-化学] 0814[工学-土木工程] 0702[理学-物理学]
主 题:internal chlorination vapor pressure chloride
摘 要:The kinetics of internal chlorination of Ni-Cr-Ce alloy in chlorine at 575℃ has been *** chlorination of Ni-Cr-Ce alloy occurred to formation of CrCl_(2) and CeCl_(3) solid precipi-tates which is thermodynamically stable and has lower vapor pressure at the temperature along grain *** initial corrosion stage,the internal chlorination rate nearly followed parabolic rate law,the internal chlorination was accompanied by the consumption of the alloy by volatilization corrosion which obeyed a linear rate equation,the thickness of the internal chlorination region would be governed by a paralinear rate *** a sufficiently long period of corrosion,the rate of internal chlorina-tion would be equal to the rate of overall metal consumption,the depth of internal chlorination approaches a steady state *** of Ce to Ni-Cr alloy increased the degree of internal chlorination.