镁合金植酸化学转化膜研究进展  

Research Progress of Phytic Acid Chemical Conversion Coatings on Magnesium Alloy

作　　者：曾纪勇 郭兴伍[1,2] 彭立明 丁文江[1,2] ZENG Ji-yong;GUO Xing-wu;PENG Li-ming;DING Wen-jiang(National Engineering Research Center of Light Alloy Net Forming-Key State Laboratory of Metal Matrix Composites,School of Materials Science and Engineering,Shanghai Jiao Tong University,Shanghai 200240,China;Shanghai Innovation Institute for Materials,Shanghai 200444,China)

机构地区：[1]上海交通大学材料科学与工程学院轻合金精密成型国家工程研究中心和金属基复合材料国家重点实验室,上海200240 [2]上海材料创新研究院,上海200444

出　　处：《材料保护》2019年第12期124-128,共5页Materials Protection

基　　金：国家重点研发计划(2016YFB0301005);高等学校学科创新引智计划(B16032)资助.

摘　　要：镁合金具有比强度高、密度低等优良的性能,目前正受到广泛关注,但镁合金本身的耐蚀性能差的特点限制了其应用。植酸转化膜对环境友好且具有良好的耐蚀性,在镁合金的防护上被视为铬酸盐转化膜的替代者之一。对目前镁合金植酸转化膜的研究进展进行了综述,对其成膜机理等进行了简要分析,并就其发展趋势进行了展望。Magnesium alloys are attracting more and more attention due to the excellent properties,but the poor corrosion resistance of magnesium alloys limits their applications.The phytic acid conversion film is regarded as one of the substitutes for the chromate conversion film because of its environmental friendliness and good corrosion resistance.In this paper,the research progress of phytic acid conversion coatings on magnesium alloys was reviewed,and the film formation mechanism was briefly analyzed.Furthermore,the development trend of phytic acid conversion coatings on magnesium alloys was prospected.

关 键 词：镁合金 植酸转化膜 耐腐蚀性能 

分 类 号：TG174.4[金属学及工艺—金属表面处理]