Effect of heat treatment on quality of steel 42CrMo4
Author(s):
Keywords:
Almaida Gigović-Gekić, Jusuf Duraković, Belma Fakić, Hasan Avdušinović (B&H)
quality, heat treatment, microstructure, hardness
Abstract:
Steel 42CrMo4 is the chromium, molybdenum and manganese low alloy steels usually used in hardened and tempered state. In this state this steel has good toughness, good torsional and fatigue strength. Its application is for statically and dynamically stressed components for engines and machines. In this article, the results of influence of different form of heat treatment on quality (microstructure and hardness) of steel are presented. Heat treatments like annealing (normalizing and soft annealing), hardening and tempering are carried out in atmospheric condition. From the results could be seen that in opposite of annealing the hardening treatment improves hardness of the material. Tempering process decreases hardness but it still higher than in the case of annealing. Microstructural analysis shows that temperature of heat treatment and a cooling rate had very important influence on microstructure and hardness of steel.
Cite as:
Gigović-Gekić A, Duraković J, Fakić B and Avdušinović H. (2021) Effect of heat treatment on quality of steel 42CrMo4. Quality 2021 (S.Brdarević, S. Jašarević, editors)”, ISSN 1512-9268, Neum, B&H, 17-19 June 2021., pp. 23-28
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