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Study on wear properties of friction pair consisting of 20Ni4Mo steel and 55SiMoV steel

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Abstract

The paper studied the influence of various surface carburized content,quenching temperature and surface hardness on the wear properties of friction pair consisting of 20Ni4Mo steel and 55SiMoV steel under high contact stress and non-lubrication condition.The matching of optimal performance of heat treatment was optimized by orthogonal test,as well as the microstructure,wear debris morphology and wear mechanism were analyzed by SEM and energy spectrum.The results show that factors affecting the wear loss as priority are carbon content of 20Ni4Mo,surface hardness of 55SiMoV and hardness of 20Ni4Mo.The optimal wear properties can be obtained by matching of 20Ni4Mo possessing surface carbon content of 0.85 wt% and surface hardness of HRC60~61 with 55SiMoV possessing surface carbon content of 0.95 wt% and surface hardness of HRC59~61.

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What this paper is about

The paper studied the influence of various surface carburized content,quenching temperature and surface hardness on the wear properties of friction pair consisting of 20Ni4Mo steel and 55SiMoV steel under high contact stress and non-lubrication condition.The matching of optimal performance of heat treatment was optimized by orthogonal test,as well as the microstructure,wear debris morphology and wear mechanism were analyzed by SEM and energy spectrum.The results show that factors affecting the wear loss as priority are carbon content of 20Ni4Mo,surface hardness of 55SiMoV and hardness of 20Ni4Mo.The optimal wear properties can be obtained by matching of 20Ni4Mo possessing surface carbon content of 0.85 wt% and surface hardness of HRC60~61 with 55SiMoV possessing surface carbon content of 0.95 wt% and surface hardness of HRC59~61.

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Available abstract

The paper studied the influence of various surface carburized content,quenching temperature and surface hardness on the wear properties of friction pair consisting of 20Ni4Mo steel and 55SiMoV steel under high contact stress and non-lubrication condition.The matching of optimal performance of heat treatment was optimized by orthogonal test,as well as the microstructure,wear debris morphology and wear mechanism were analyzed by SEM and energy spectrum.The results show that factors affecting the wear loss as priority are carbon content of 20Ni4Mo,surface hardness of 55SiMoV and hardness of 20Ni4Mo.The optimal wear properties can be obtained by matching of 20Ni4Mo possessing surface carbon content of 0.85 wt% and surface hardness of HRC60~61 with 55SiMoV possessing surface carbon content of 0.95 wt% and surface hardness of HRC59~61.

Key concepts: Quenching (fluorescence), Materials science, Hardness, Lubrication, Microstructure, Metallurgy, Carburizing, Carbon steel

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Study on wear properties of friction pair consisting of 20Ni4Mo steel and 55SiMoV steel — Research Paper | ScholarLens