Paper Title:

The Isothermal Transformation of Low-Alloy Low-C CMnSi Steels below MS

Periodical Materials Science Forum (Volumes 654 - 656)
Main Theme PRICM7
Edited by Jian-Feng Nie and Allan Morton
Pages 98-101
DOI 10.4028/www.scientific.net/MSF.654-656.98
Citation Dong Hwi Kim et al., 2010, Materials Science Forum, 654-656, 98
Online since June, 2010
Authors Dong Hwi Kim, John G. Speer, Bruno C. De Cooman
Keywords Bainite, Isothermal Transformation, Martensite, TEM
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Abstract

An isothermal transformation was observed when a low-alloy, low-carbon steel was quenched and held in the MS–Mf temperature range after austenitized above A3. The precise nature of this isothermal transformation is still unclear. The present contribution is a comprehensive comparison using EBSD, internal friction (IF) and TEM analysis of the isothermal transformation product, the athermal martensite and the lower bainite. The observations revealed that the isothermal transformation product in the MS-Mf temperature range had its own microstructural characteristics with wavy lath boundaries and orientation relationship.