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| Influence of Protective Coating at High Temperature on Surface Quality of Stainless Steel |
| Xiao-meng ZHANG1,Lian-qi WEI1,Peng LIU1,Sen WANG2,Shu-feng YE1,Yun-fa CHEN1 |
1. State Key Laboratory of Multi-phase Complex Systems, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, China
2. School of Engineering Technology, China University of Geosciences,Beijing 100083, China |
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Abstract 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 investigated 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 cooling process. Mn-rich and Fe-rich zones were found in the oxides. The Cr2O3 found in scales came from the underlying stainless steel and formed a Cr-rich layer along the spalled surface.
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Received: 30 October 2012
Published: 20 February 2014
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| Fund:Projects Sponsored by the National Natural Science Foundation of China |
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2014, Vol. 21 
