机械合金化Ni-20Cr-2.5Al合金的电化学腐蚀研究

Study on electrochemical corrosion behavior of Ni-20Cr-2.5Al alloy treated by mechanical alloying

利用电化学方法,结合XRD、TEM等表面分析技术,研究了机械合金化Ni-20Cr-2．5Al及粗晶Ni- 20Cr-2．5Al合金在3．5％NaCl溶液中的腐蚀性能．结果表明粗晶Ni-20Cr-2．5Al合金在3．5％NaCl溶液中的电化学性能要好于机械合金化方法制备的Ni-20Cr-2．5Al合金．

Electrochemical methods and XRD, TEM techniques are adopted to investigate the corrosion performance of mechanical ahoy Ni-20Cr-2.5Al in the corrosion solution with 3.5% NaCl. The results show that the corrosion resistance capability and electrochemical performance of mechanical alloy Ni-20Cr-2.5Al is better than that of cast Ni-20Cr-2.5Al alloy.