Ni-Cr-Fe金属载体表面预处理的实验研究  

Study on Surface Pretreatment of Ni-Cr-Fe Metallic Substrate

作　　者：王婧姝[1] 郎集会[1] 张勇[1] 陈潇潇[1] 孙亚明[1] 李季[1] 

机构地区：[1]吉林师范大学物理学院,吉林四平136000

出　　处：《吉林师范大学学报（自然科学版）》2012年第4期69-71,74,共4页Journal of Jilin Normal University:Natural Science Edition

基　　金：吉林省科技厅重大项目(20106006)

摘　　要：通过物理喷砂法和化学腐蚀法分别对Ni-Cr-Fe金属载体进行了表面预处理,并将两种预处理方法所得到的金属载体表面进行了SEM表征.结果表明:经过化学处理的载体沿晶界腐蚀良好,比喷砂后的表面形貌更均匀.研究了不同腐蚀时间和煅烧温度条件下金属合金载体的表面形貌的变化,并确定了最佳的腐蚀时间和煅烧温度.The physical sand blast and chemical corrosion pre-treatment method were compared in this paper.The microstructure of the Ni-Cr-Fe metallic substrate was investigated by SEM.The results indicated that the metallic substrate surface pretreatment could improved the geometric surface area.After chemical corrosion method,the microstructure was more uniformity than physical sand blast method.This paper also investigated the effects of different corrosion time,oxidation time and oxidation temperatures.From some groups of tests,the optimal experiment condition was determined.

关 键 词：汽车尾气催化净化 Ni-Cr-Fe合金 金属载体 表面预处理 

分 类 号：TG174.45[金属学及工艺—金属表面处理]