Influence of Protective Coating at High Temperature on Surface Quality of Stainless Steel  

作　　者：Xiao-meng ZHANG Lian-qi WEI Peng LIU Sen WANG Shu-feng YE Yun-fa CHEN 

机构地区：[1]State Key Laboratory of Multi-phase Complex Systems,Institute of Process Engineering,Chinese Academy of Sciences [2]School of Engineering Technology,China University of Geosciences

出　　处：《Journal of Iron and Steel Research International》2014年第2期202-207,共6页

基　　金：Item Sponsored by National Natural Science Foundation of China(51202249);Key Projects in National Science and Technology Pillar Program in the Twelfth Five-year Plan of China(2012BAB08B04)

摘　　要：A ceramic matrix coating for minimizing steel loss of stainless steel at high temperatures was prepared by handled air-spraying technique, and the influence of coating on surface quality of stainless steel was mainly investiga ted in laboratory. Experimental results showed that the protective coating reduced the oxidation of stainless steel by more than 91% and minimized high temperature scaling and also enhanced steel surface quality. The scales of coated specimen were removed completely and the scales of uncoated specimen were partly residual on the surface after cool ing process. Mn-rich and Fe-rich zones were found in the oxides. The Cr2 O3 found in scales came from the underlying stainless steel and formed a Cr rich layer along the spalled surface.A ceramic matrix coating for minimizing steel loss of stainless steel at high temperatures was prepared by handled air-spraying technique, and the influence of coating on surface quality of stainless steel was mainly investiga ted in laboratory. Experimental results showed that the protective coating reduced the oxidation of stainless steel by more than 91% and minimized high temperature scaling and also enhanced steel surface quality. The scales of coated specimen were removed completely and the scales of uncoated specimen were partly residual on the surface after cool ing process. Mn-rich and Fe-rich zones were found in the oxides. The Cr2 O3 found in scales came from the underlying stainless steel and formed a Cr rich layer along the spalled surface.

关 键 词：protective coating oxidation loss surface quality stainless steel 

分 类 号：TG174.4[金属学及工艺—金属表面处理]