Abrasive wear behavior of cast iron coatings plasma-sprayed at different mild steel substrate temperatures |
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| Authors: | Ya-zhe Xing Qiu-lan Wei Chao-ping Jiang Jian-min Hao |
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| Affiliation: | 1. School of Materials Science and Engineering, Chang??an University, Xi??an, 710064, China
2. Department of Automotive Engineering, Shaanxi College of Communication Technology, Xi??an, 710018, China
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| Abstract: | Three kinds of cast iron coatings were prepared by atmospheric plasma spraying. During the spraying, the mild steel substrate temperature was controlled to be averagely 50, 180, and 240°C, respectively. Abrasive wear tests were conducted on the coatings under a dry friction condition. It is found that the abrasive wear resistance is enhanced with the substrate temperature increasing. SEM observations show that the wear losses of the coatings during the wear tests mainly result from the spalling of the splats. Furthermore, the improved wear resistance of the coatings mainly owes to the formation of oxides and the enhancement in the mechanical properties with the substrate temperature increasing. |
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