Effect of Austempering Temperature and Water Qeunching on Impact Abrasive Wear Properties of High Carbon Fe-0.9C-2.5Si-2.9Mn Steel

Author of the article:WANG Bin 1 , WANG Haoxiang 1 , WANG Jun 1 , WANG Changzhi 1 , YU Hao 2 , XU Bin 1 , SHI Jialong 1

Author's Workplace：1.Tongling Non-ferrous Jinshen Wear-resistant Materials Co., Ltd., Tongling 244000, China; 2. School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing 100083, China

Key Words：high carbon steel; bainite/martensite complex microstructure; austempering; water quenching; impact wear; work hardening

Abstract：The influence of austempering temperature and water quenching on impact wear properties of high carbon
Fe-0.9C-2.5Si-2.9Mn steel was studied using MLD 10 dynamic load abrasive wear tester. The results show that under 2 J
low impact energy, the work hardening layer of bainite and bainite/martensite complex microstructure is shallower, and the
wear quantity is higher than that of martensite microstructure, that is, the wear resistance of martensite is better. When the
impact energy increases to 6 J, work hardening layer is formed on the surface of bainite structure, and its wear resistance is
improved, and the wear quantity is lower than that of martensite and bainite/martensite multiphase structure.