Deformation Behavior of a Double Soaked Medium Manganese Steel with Varied Martensite Strength
Abstract
The results of athermal martensite on yielding behavior and strain partitioning during deformation is explored using in situ neutron diffraction for a 0.14C–7.14Mn medium manganese steel. Utilizing a novel heat treatment, termed double soaking, samples with similar microstructural composition and varied athermal martensite strength and microstructural characteristics, which composed the bulk of the matrix phase, were characterized. It was found that the addition of either as-quenched or tempered athermal martensite led to an improvement in mechanical properties as compared to a ferrite plus austenite medium manganese steel, although the yielding and work hardening behavior were highly dependent upon the martensite characteristics. Specifically, athermal martensite was found to promote continuous yielding and improve the work hardening rate during deformation. The findings of this study are particularly relevant when considering the effect of post-processing thermal heat treatments, such as tempering or elevated temperature service environments, on the mechanical properties of medium manganese steels containing athermal martensite.
- Authors:
- Publication Date:
- Research Org.:
- Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
- Sponsoring Org.:
- USDOE National Nuclear Security Administration (NNSA); Advanced Steel Processing and Products Research Center (ASPPRC)
- OSTI Identifier:
- 1532420
- Alternate Identifier(s):
- OSTI ID: 1558073
- Report Number(s):
- LA-UR-19-25605
Journal ID: ISSN 2075-4701; MBSEC7; PII: met9070761
- Grant/Contract Number:
- 89233218CNA000001
- Resource Type:
- Published Article
- Journal Name:
- Metals
- Additional Journal Information:
- Journal Name: Metals Journal Volume: 9 Journal Issue: 7; Journal ID: ISSN 2075-4701
- Publisher:
- MDPI
- Country of Publication:
- Switzerland
- Language:
- English
- Subject:
- 36 MATERIALS SCIENCE; steel; neutron diffraction; deformation
Citation Formats
Glover, Alexandra, Gibbs, Paul J., Liu, Cheng, Brown, Donald W., Clausen, Bjørn, Speer, John G., and De Moor, Emmanuel. Deformation Behavior of a Double Soaked Medium Manganese Steel with Varied Martensite Strength. Switzerland: N. p., 2019.
Web. doi:10.3390/met9070761.
Glover, Alexandra, Gibbs, Paul J., Liu, Cheng, Brown, Donald W., Clausen, Bjørn, Speer, John G., & De Moor, Emmanuel. Deformation Behavior of a Double Soaked Medium Manganese Steel with Varied Martensite Strength. Switzerland. https://doi.org/10.3390/met9070761
Glover, Alexandra, Gibbs, Paul J., Liu, Cheng, Brown, Donald W., Clausen, Bjørn, Speer, John G., and De Moor, Emmanuel. Mon .
"Deformation Behavior of a Double Soaked Medium Manganese Steel with Varied Martensite Strength". Switzerland. https://doi.org/10.3390/met9070761.
@article{osti_1532420,
title = {Deformation Behavior of a Double Soaked Medium Manganese Steel with Varied Martensite Strength},
author = {Glover, Alexandra and Gibbs, Paul J. and Liu, Cheng and Brown, Donald W. and Clausen, Bjørn and Speer, John G. and De Moor, Emmanuel},
abstractNote = {The results of athermal martensite on yielding behavior and strain partitioning during deformation is explored using in situ neutron diffraction for a 0.14C–7.14Mn medium manganese steel. Utilizing a novel heat treatment, termed double soaking, samples with similar microstructural composition and varied athermal martensite strength and microstructural characteristics, which composed the bulk of the matrix phase, were characterized. It was found that the addition of either as-quenched or tempered athermal martensite led to an improvement in mechanical properties as compared to a ferrite plus austenite medium manganese steel, although the yielding and work hardening behavior were highly dependent upon the martensite characteristics. Specifically, athermal martensite was found to promote continuous yielding and improve the work hardening rate during deformation. The findings of this study are particularly relevant when considering the effect of post-processing thermal heat treatments, such as tempering or elevated temperature service environments, on the mechanical properties of medium manganese steels containing athermal martensite.},
doi = {10.3390/met9070761},
journal = {Metals},
number = 7,
volume = 9,
place = {Switzerland},
year = {Mon Jul 01 00:00:00 EDT 2019},
month = {Mon Jul 01 00:00:00 EDT 2019}
}
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