Interstitial-Free Bake Hardening Realized by Epsilon Martensite Reverse Transformation
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11661_2019_5344_ReferencePDF.pdf
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1.42 MB
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Checksum (MD5)
02c7167a5734b3fce7af8269e87937a1
Author(s)
Wei, Shaolou
Jiang, Menglei
Tasan, Cemal
Date Issued
July 2019
Journal
Metallurgical and Materials Transactions A
Publisher
Springer Science and Business Media LLC
Citation
Wei, Shaolou et al. "Interstitial-Free Bake Hardening Realized by Epsilon Martensite Reverse Transformation." Metallurgical and Materials Transactions A 50, 9 (September 2019): 3985–3991. © 2019 The Minerals, Metals & Materials Society and ASM International
Version
Author's final manuscript
Abstract
By investigating a metastable high-entropy alloy, we report a latent strengthening mechanism that is associated with the thermally-induced epsilon-martensite-to-austenite reverse transformation. We show this reversion-assisted hardening effect can be achieved in the same time-scale and temperature range as conventional bake-hardening treatment, but leads to both improved strength and cumulative ductility. Key mechanisms are discussed considering transformation kinetics, kinematics, strengthening and ductilization modules.
MIT Department
Massachusetts Institute of Technology. Department of Materials Science and Engineering
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Creative Commons Attribution-Noncommercial-Share Alike
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DOI of Published Version
https://doi.org/10.1007/s11661-019-05344-4
