Journal
JOURNAL OF MATERIALS PROCESSING TECHNOLOGY
Volume 213, Issue 1, Pages 120-128Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/j.jmatprotec.2012.08.005
Keywords
QLT treatment; L process; T tempering; Retained austenite
Funding
- Shougang Research Institute of Technology
Ask authors/readers for more resources
After direct quenching from 870 degrees C. the samples were subjected to secondary quenching (L) at different intercritical temperatures within the two-phase region and various tempering temperatures (T). Optical microscopy and scanning electron microscopy were employed to analyse the distributions of phases and grain sizes, and transmission electron microscopy was used to reveal the morphology of martensite and retained austenite. Charpy impact specimens of the steel after different heat treatment were tested. Results show that QLT treatment gives the best impact toughness values compared with the rolling condition and conventional quenching and tempering process, and the optimum QLT heat treatment parameters are determined as Q: 870 C, L: 770 degrees C, and T: 580 degrees C. (C) 2012 Elsevier B.V. All rights reserved.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available