Abstract
The aim of this study was the investigation of the effect of different Y2O3 additives on wear resistance of the hypereutectic Fe–Cr–C hardfacing coatings. The microstructures were observed by optical microscopy, field emission scanning electron microscopy and transmission electron microscopy, respectively. Meanwhile, the hardness was measured and the wear resistance was evaluated. Finally, the role of Y2O3 was discussed. The microstructures of the coatings consist of the primary (Cr, Fe)7C3 carbide and eutectic structure [austenite + (Cr, Fe)7C3 carbide]. Moreover, Y2O3 can refine the M7C3 carbide and improve the wear resistance of coatings obviously. Y2O3 can absorb at the surface of the M7C3 carbide and improve the wear resistance of the hypereutectic Fe–Cr–C hardfacing coatings.
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The authors would like to express their gratitude for projects supported by Program for National Nature Science Foundation of China (51271163) and (51471148).
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Yun, X., Zhou, Y.F., Zhao, B. et al. Influence of Nano-Y2O3 on Wear Resistance of Hypereutectic Fe–Cr–C Hardfacing Coating. Tribol Lett 58, 23 (2015). https://doi.org/10.1007/s11249-015-0475-8
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DOI: https://doi.org/10.1007/s11249-015-0475-8