Title: Plastic deformation and microstructure evolution of bearing ring blank during cold rolling process

Authors: Song Deng; Lin Hua

Addresses: School of Automotive Engineering, Hubei Key Laboratory of Advanced Technology of Automotive Parts, Wuhan University of Technology, Wuhan 430070, China; Hubei Collaborative Innovation Center for Automotive Components Technology, Wuhan University of Technology, Wuhan 430070, China ' School of Automotive Engineering, Hubei Key Laboratory of Advanced Technology of Automotive Parts, Wuhan University of Technology, Wuhan 430070, China; Hubei Collaborative Innovation Center for Automotive Components Technology, Wuhan University of Technology, Wuhan 430070, China

Abstract: Bearing ring blanks of the high-speed rail bearings, machine tool spindle bearings and wind power bearings have been manufactured through the ring rolling technology. Yet, the plastic deformation and microstructure evolution of bearing ring blanks during the cold rolling process remains unclear. In this work, the deformation and damage evaluation of bearing ring blanks made of GCr15 bearing steel are characterised by the electron backscatter diffraction (EBSD) technique. Furthermore, their microstructure changes in cold rolling are investigated through band contrast images, and their texture evolutions after various deformation ratios are analysed by the technique of 3D-Euler space distribution. This work provides valuable guidelines for enhanced understanding the role of the cold rolling technology on the microstructure evolution of bearing ring blanks.

Keywords: bearing ring; plastic deformation; microstructure and texture evolution; cold rolling.

DOI: 10.1504/IJCMSSE.2018.095311

International Journal of Computational Materials Science and Surface Engineering, 2018 Vol.7 No.3/4, pp.183 - 192

Received: 09 Dec 2016
Accepted: 26 Jun 2017

Published online: 28 Sep 2018 *

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