微量合金元素铜和镍对灰铸铁耐盐雾腐蚀性能的影响  

Effects of Alloying with Trace Copper and Nickel on Salt Spray Corrosion Resistance of Gray Cast Iron

作　　者：牛毓敏 王春风[2] 何春华[2] 刘峻才 杨军[1] 陈美玲[1] NIU Yumin;WANG Chunfeng;HE Chunhua;LIU Juncai;YANG Jun;CHEN Meiling(School of Materials Science and Engineering,Dalian Jiaotong University,Dalian 116028,Liaoning China;Technical Technology Department,Guangxi Yuchai Machinery Co.,Ltd.,Yulin 537005, Guangxi China)

机构地区：[1]大连交通大学材料科学与工程学院,辽宁大连116028 [2]广西玉柴机器股份有限公司技术工艺部,广西玉林537005

出　　处：《铸造工程》2019年第1期1-4,共4页Foundry Engineering

摘　　要：研究了在灰铸铁中以少量的铜和镍合金化对其耐盐雾腐蚀性能的影响。结果表明,添加少量的铜可有效地细化石墨;添加微量的镍可降低其在NaCl溶液中的自腐蚀电流,提高灰铸铁在盐雾气氛中的耐蚀性,并形成较为致密的腐蚀产物膜。The effect of alloying with a small amount of copper and nickel on the salt spray corrosion resistance of gray cast iron was investigated.The results show that the addition of a small amount of copper can make the graphite in structure to be refined;and that addition of a small amount of nickel can reduce the self-corrosion current in NaCl solution,enhance the corrosion resistance of gray cast iron in salt spray atmosphere,and result in formation of a compact corrosion product film.

关 键 词：灰铸铁 盐雾腐蚀 极化曲线 

分 类 号：TG113.23[金属学及工艺—物理冶金]