Effect of heredity of central carbon segregation on sliding wear properties of GCr15 bearing steel

Saisai Wu; Dianxiu Xia; Rongchang Xu; Yuzhu Dong; Shuqi Li; Xinhua Sun; Yuquan Cai; Li Wang; Guyi Si

doi:10.1117/12.3007136

25 October 2023 Effect of heredity of central carbon segregation on sliding wear properties of GCr15 bearing steel

Saisai Wu, Dianxiu Xia, Rongchang Xu, Yuzhu Dong, Shuqi Li, Xinhua Sun, Yuquan Cai, Li Wang, Guyi Si

Proceedings Volume 12801, Ninth International Conference on Mechanical Engineering, Materials, and Automation Technology (MMEAT 2023); 128011X (2023) https://doi.org/10.1117/12.3007136
Event: Ninth International Conference on Mechanical Engineering, Materials, and Automation Technology (MMEAT 2023), 2023, Dalian, China

Abstract

The microstructure heredity of carbon segregation leads to uneven distribution of carbides and cannot be completely eliminated in subsequent heat treatment, thus affecting the wear resistance of bearings. The hot acid corrosion test was carried out on the rolled and spheroidized annealing samples, and the C element distribution and microstructure of the samples were analyzed by electron probe spectrometer and scanning electron microscope (SEM). The sliding friction and wear test of bearing steel with segregation under dry friction condition was carried out by using RETC multifunctional friction and wear tester, and the wear rate was calculated by white light interferometer. The wear morphology of the samples was compared and analyzed by scanning electron microscopy (SEM) and EBSD. The influence of the heredity of central carbon segregation on the sliding friction and wear properties of GCr15 bearing steel was studied. The results show that the carbon segregation of GCr15 bearing steel has structural heredity, which makes the segregation more serious than the non-segregation, and the wear resistance is reduced.

(2023) Published by SPIE. Downloading of the abstract is permitted for personal use only.

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Saisai Wu, Dianxiu Xia, Rongchang Xu, Yuzhu Dong, Shuqi Li, Xinhua Sun, Yuquan Cai, Li Wang, and Guyi Si "Effect of heredity of central carbon segregation on sliding wear properties of GCr15 bearing steel", Proc. SPIE 12801, Ninth International Conference on Mechanical Engineering, Materials, and Automation Technology (MMEAT 2023), 128011X (25 October 2023); https://doi.org/10.1117/12.3007136

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KEYWORDS

Carbon

Annealing

Grain boundaries

Heat treatments

Quenching

Scanning electron microscopy

Statistical analysis

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