森吉米尔法和双镀Galfan合金镀层的分析  

Analysis of Galfan coatings prepared by Sendzimir and double-step hot-dip process

作　　者：马瑞娜[1] 杜安[1] 高秋志[1] 曹晓明[1] 范永哲[1] 

机构地区：[1]河北工业大学材料科学与工程学院,天津300130

出　　处：《金属热处理》2009年第5期53-56,共4页Heat Treatment of Metals

摘　　要：用SEM和EDS法分析比较森吉米尔法和双镀Galfan合金镀层的显微组织,研究了森吉米尔法浸镀温度和时间对过渡层的影响。结果表明,森吉米尔法镀层厚度比双镀镀层厚,且表面层组织致密度好。不同的预处理工艺对Galfan镀层中的合金化反应产物没有明显影响,在过渡层中靠近基体和表面层位置分别形成FeAlZnx相和FeAl3Znx相。过渡层的生长主要受浸镀温度和浸镀时间的影响。Microstructure of Galfan coatings obtained by Sendzimir and double-step hot-dip process was analyzed by means of SEM and EDS. The effects of hot-dipping temperature and time on the transition layer were studied. The results show that the Galfan coating hot-dipped by Senzimir process is thicker and much compact than that by double-step hot-dipping process. The alloyed products in the transition layer obtained by different pretreatment are not obviously different, near the substrate exists FeA;Znx phase and near the surface layer exists FeAl3Znx phase. The growth of transition layer is mainly depended on the hot-dipping temperature and time.

关 键 词：森吉米尔法 双镀法 GALFAN合金 

分 类 号：TG174.443[金属学及工艺—金属表面处理]