中国有色金属学会会刊(英文版)
中國有色金屬學會會刊(英文版)
중국유색금속학회회간(영문판)
TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA
2004年
3期
520-524
,共5页
许涛%陈玲%谌岩%于升学%刘彬%刘建华
許濤%陳玲%諶巖%于升學%劉彬%劉建華
허도%진령%심암%우승학%류빈%류건화
Cu-Cr alloy%dechromisation%H+%Cl-
The phenomenon, characteristics and influence factors of dechromisation of a Cu-Cr alloy in acid solutions containing Cl- were studied by means of metallographic observation, SEM/EDX, TEM and XRD. The mechanism of dechromisation of Cu-Cr alloy was discussed. The results show that dechromisation of the Cu-Cr alloy occurs at a certain temperature in solutions with H+ and Cl- simultaneously. The corrosion starts initially at the interfaces between Cu phase and Cr phase, then develops gradually into the centers of Cr phase. It is also revealed that dechromisation rates of the Cu-Cr alloy increase with increasing concentration of H+ or Cl-, and temperature of the solutions.
