Fast Salt Bath Heat Treatment for a Bainitic/Martensitic Low-Carbon Low-Alloyed Steel

J. Urbanec, A. Saastamoinen, S. Kivivuori, S. Louhenkilpi

Research output: Contribution to journalArticleScientificpeer-review

2 Citations (Scopus)

Abstract

textcopyright 2015, The Minerals, Metals Materials Society and ASM International. The mechanical properties of a low-alloyed steel with 0.06 wt pct C were investigated after a series of heat treatment processes using salt bath followed by quenching into water in order to obtain bainitic/martensitic steel. Salt bath holding time varied from 30 to 330 seconds. Hardness, tensile properties and toughness have been examined. The results show the obtained microstructure significantly enhances the impact strength (up to 187 J) and toughness (up to 71.4 pct critical reduction) with good hardness (239 ± 4 HV) and tensile strength (720 to 800 MPa) compared to direct quenching heat treatment without salt bath holding.
Original languageEnglish
JournalMetallurgical and Materials Transactions A: Physical Metallurgy and Materials Science
Volume46
Issue number11
DOIs
Publication statusPublished - 2015
Externally publishedYes
Publication typeA1 Journal article-refereed

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