Table of Contents
ISRN Tribology
Volume 2013 (2013), Article ID 408016, 6 pages
http://dx.doi.org/10.5402/2013/408016
Research Article

Effect of Cryosoaking Time on Transition in Wear Mechanism of M2 Tool Steel

Department of Metallurgical Engineering, Government College of Engineering, Pune 411005, India

Received 13 October 2012; Accepted 30 October 2012

Academic Editors: F. Findik and R. Hambli

Copyright © 2013 N. B. Dhokey et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

Specimens of M2 were hardened (H) by quenching at 1200°C, triple tempered (TTT) at 400°C, and then cryogenically (C) treated at minus 185°C for varying lengths of time interval starting from 4 hours to 48 hours of cryosoaking followed by soft tempering at 100°C to relieve cold stresses (HTC). Underlying wear mechanism, hardness, and impact energy were studied and optimum cryosoaking time was established. It was felt that wear resistance of cryogenically treated material was influenced by the so-called tertiary carbides possibly produced as a result of cryogenic treatment.