Effect of heat treatment on strength and ductility of 52CrMoV4 spring steel.

Conference of the South African Advanced Materials Initiative 2018

Matjeke, V.J.^1,2,3 ; Mukwevho, G.^1 ; Maleka, A.M.^1 ; Van Der Merwe, J.W.^2,3

Transnet Engineering, Research and Development, Private Bag X 528, Kilnerpark

0127, South Africa^1

School of Chemical and Metallurgical Engineering, University of the Witwatersrand, Private Bag X3, Johannesburg, Wits

2050, South Africa^2

DST-NRF Centre of Excellence in Strong Materials, University of the Witwatersrand, Private Bag X3, Wits, Johannesburg

2050, South Africa^3

关键词: Advanced high strength steel;    Alloyed steels;    Effect of heat treatments;    Heat treatment process;    Quenching medium;    Quenching process;    Strength and ductilities;    Tempering temperature;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/430/1/012044/pdf
DOI  :  10.1088/1757-899X/430/1/012044

来源: IOP

【 摘 要 】

In this study we examined the behaviour of the 52CrMoV4 spring steel at various tempering temperatures and soaking times. The hardening and quenching process was set up to achieve a minimum hardness of 800 HV by selecting an appropriate quenching medium. The microstructure was evaluated optically and with scanning electron microscopy (SEM) and the mechanical properties were characterised by hardness and tensile tests. An excellent combination of strength and ductility was achieved on conventional alloyed steel by adjusting heat treatment process parameters. The strength and ductility of the material was found to be comparable to that of advanced high strength steel (AHSS).