MICROSTRUCTURE AND CORROSION BEHAVIOR OF 70Cu-30Ni WELDED PIPE

来源期刊：中国有色金属学报(英文版)1995年第2期

论文作者：Wang Jihui Jiang Xiaoxia Li Shizhuo

文章页码：88 - 92

Key words：cupronickel alloy ;welding ;corrosion behavior

Abstract: The microstructure and corrosion behavior of 70Cu-30Ni welded pipe were investigated by EMPA, SEM, immersion test and electrochemical method.The results showed that:(1)with the process of drawing and annealing, the composition and microstructure tend to uniform; (2) the corrosion rate of heat affected zone is greater than that of base material; (3) the corrosion rate of welded pipe is about the same as that of seamless pipe