Understanding the behavior of advanced high-strength steels using atom probe tomography

Elena Pereloma, Hossein Beladi, Lai-Chang Zhang, Ilana Timokhina

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35 Citations (Scopus)

Abstract

The key evidence for understanding the mechanical behavior of advanced high strength steels was provided by atom probe tomography (APT). Chemical overstabilization of retained austenite (RA) leading to the limited transformation-induced plasticity (TRIP) effect was deemed to be the main factor responsible for the low ductility of nanostructured bainitic steel. Appearance of the yield point on the stress-strain curve of prestrained and bake-hardened transformation-induced plasticity steel is due to the unlocking from weak carbon atmospheres of newly formed during prestraining dislocations.

Original languageEnglish
Pages (from-to)3958-3971
Number of pages14
JournalMetallurgical and Materials Transactions A: Physical Metallurgy and Materials Science
Volume43
Issue number11
DOIs
Publication statusPublished - Nov 2012
Externally publishedYes

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