通过失重试验、电化学测试、XPS测试等研究了微量氟化钾对AZ91D、NZK和AM-SC1三种镁合金在商用CALTEX冷却液中腐蚀行为的影响。结果表明: 随着CALTEX冷却液中氟化钾含量的增大, 三种合金在其中的腐蚀速率随之减小, 且氟化钾对AM-SC1和NZK合金腐蚀的抑制作用比较显著; 氟化钾对合金的缓蚀作用是由于氟离子与镁反应, 在合金表面生成难溶的MgF2膜, 阻止了合金的进一步腐蚀。
所属栏目
材料性能及其应用国家“863”计划项目(2009AA033501)
收稿日期
2012/1/72012/12/10
作者单位
袁鹏:上海交通大学材料科学与工程学院1. 轻合金精密成型国家工程研究中心
郭兴伍:上海交通大学材料科学与工程学院1. 轻合金精密成型国家工程研究中心
彭立明:上海交通大学材料科学与工程学院1. 轻合金精密成型国家工程研究中心金属基复合材料国家重点实验室, 上海 200240
付彭怀:上海交通大学材料科学与工程学院1. 轻合金精密成型国家工程研究中心金属基复合材料国家重点实验室, 上海 200240
龚佳:上海交通大学材料科学与工程学院1. 轻合金精密成型国家工程研究中心
吴国华:上海交通大学材料科学与工程学院1. 轻合金精密成型国家工程研究中心
备注
袁鹏(1987-), 男, 重庆人, 硕士研究生。
引用该论文:
YUAN Peng,GUO Xing-wu,PENG Li-ming,FU Peng-huai,GONG Jia,WU Guo-hua.Effect of KF Trace Addition on Corrosion Behaviors of Magnesium Alloys in a Commercial Coolant[J].Materials for mechancial engineering,2013,37(4):58～61
袁鹏,郭兴伍,彭立明,付彭怀,龚佳,吴国华.微量氟化钾对镁合金在商用冷却液中腐蚀行为的影响[J].机械工程材料,2013,37(4):58～61
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