Title: Influence of cooling medium and cooling conditions on hardness and distortions after steel quenching

Authors: Plamen Danev; Danailv Gospodinov

Addresses: Faculty of Mechanical and Manufacturing Engineering, University of Ruse, 8 Studentska Str., 7017 Ruse, Bulgaria ' Faculty of Mechanical and Manufacturing Engineering, University of Ruse, 8 Studentska Str., 7017 Ruse, Bulgaria

Abstract: The cooling stage is of particular importance to the formation of the final microstructure and the characteristics of the heat-treated product, so performing it properly is one of the prerequisites for obtaining high quality and mechanical properties. The aim of the present study is to examine heat exchange, conduct a practical test and obtain quantitative assessment of product hardness and distortion after conventional and vacuum quenching of cylindrical steel parts.

Keywords: hardness; distortion; quenching ability; quenching oil; cooling media; vacuum heat treatment; cooling conditions; steel quenching; microstructure; cylindrical components.

DOI: 10.1504/IJMMP.2016.079137

International Journal of Microstructure and Materials Properties, 2016 Vol.11 No.3/4, pp.162 - 173

Received: 30 May 2015
Accepted: 25 Nov 2015
Published online: 14 Sep 2016 *

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