| WANG Xin-shuai,JING Feng-yu,ZHANG Xi-dong,ZHAO Jing-yu,SUN Yu-fu.Study on Wear Resistance of Fe-based Clad Coating Prepared by Plasma Cladding-B4C Injection[J],43(5):42-46 |
| Study on Wear Resistance of Fe-based Clad Coating Prepared by Plasma Cladding-B4C Injection |
| Received:May 08, 2014 Revised:August 18, 2014 |
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| DOI： |
| KeyWord:plasma cladding-injection B4C Fe-based cladding layer wear resistance |
| Author | Institution |
| WANG Xin-shuai |
Material Science and Engineering College, Zhengzhou University, Zhengzhou , China |
| JING Feng-yu |
Material Science and Engineering College, Zhengzhou University, Zhengzhou , China |
| ZHANG Xi-dong |
Material Science and Engineering College, Zhengzhou University, Zhengzhou , China |
| ZHAO Jing-yu |
Material Science and Engineering College, Zhengzhou University, Zhengzhou , China |
| SUN Yu-fu |
Material Science and Engineering College, Zhengzhou University, Zhengzhou , China |
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| Abstract: |
| Objective Fe-based B4C composite clad coating was prepared on the surface of Q235 steel by plasma cladding-injection process, and its wear resistance was studied. Methods The microstructure and dry-sliding wear behavior of the clad layer were investigated by means of optical microscopy( OM) , scanning electron microscopy( SEM) , energy dispersive spectrometry ( EDS) and ball-on-disc wear experiments. Results The experimental results showed that when the B4C accounted for 18% of the quality of the main body cladding material, the surface of the clad coating was smooth, without cracks. In addition, the plasma cladding-injecting coating had a compact texture, a low dilution rate and a good metallurgical bonding with carbon steel substrate, and there was a bright white transition layer in the interface. During the dissolving of the surface of the B4C ceramic particles, borides of Fe and Cr were formed. The wear resistance test showed that the plasma cladding-injecting coating had high wear resistance, which was twenty-two times that of the 42CrMo steel, and forty-one times that of the 16Mn steel. Conclusion The plasma cladding-injection B4C process was beneficial to enhance the bonding force between the B4C and the cladding layer, and improve the hardness and wear resistance of the plasma cladding-injecting coating. |
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