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자료유형
학술저널
저자정보
Yinghua Wei (Shenyang University of Technology) Xingfu Yu (Shenyang University of Technology) Shuai Wang (Shenyang University of Chemical Technology) Xiangyang Shen (Shenyang University of Technology) Wenzeng Zhao (Shenyang University of Technology) Yong Su (Shenyang University of Chemical Technology) Yu Yang (Aero Engine Corporation of China) Xiaochuan Feng (AECC Harbin Bearing Co. Ltd)
저널정보
대한금속·재료학회 Metals and Materials International Metals and Materials International Vol.29 No.6
발행연도
2023.6
수록면
1,586 - 1,595 (10page)
DOI
10.1007/s12540-022-01326-1

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By using scanning electron microscope (SEM), transmission electron microscope (TEM), X-Ray diffraction (XRD), and hardnessand rotational bending fatigue tests, the effect of short-time carburizing treatment on the microstructure and mechanicalproperties of bearing steel was studied. The results show that when the M50 steel is not carburized, the hardness is 750 HV,the rotational bending fatigue limit is 1100 MPa, and the impact absorption energy is 15.46 J. After short-time carburizationwith the carbon potential of 0.6%, the maximum hardness in the carburized area, the rotational bending fatigue limitand the impact absorption energy are all increased to be 807.7 HV, 1210 MPa and 16.72 J respectively. When the carbonpotential is further enhanced to be 0.8%, the maximum hardness of the carburized area of the steel is further enhanced to be813.4 HV, but the rotational bending fatigue strength and the impact absorption energy are both decreased to be 1125 MPaand 13.65 J respectively, which has close relations with the increasement of undissolved carbides and the precipitation ofacicular carbides.

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