On the more persistently-enhanced strain hardening in carbon-increased Fe–Mn–C twinning-induced plasticity steel

We show more persistently-enhanced strain hardening with improved tensile strength and maintained high plasticity in Fe–18Mn–1.0C than in Fe–22Mn–0.6C steel. This is primarily attributed to the gradual release of more densely-spaced thinner twins and twin bundles favored by the increased dynamic int...

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Bibliographic Details
Published in:Materials science & engineering. A, Structural materials : properties, microstructure and processing Structural materials : properties, microstructure and processing, 2015-07, Vol.639, p.425-430
Main Authors: Liu, Shuai, Qian, Lihe, Meng, Jiangying, Ma, Penghui, Zhang, Fucheng
Format: Article
Language:English
Subjects:
Bundles
Carbon
Carbon manganese steels
High-manganese austenitic steel
Mechanical properties
Microstructure
Plasticity
Solvents
Strain hardening
Strain-hardening behavior
Structural steels
Tensile strength
TRIP steels
Twinning-induced plasticity steel
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Summary:We show more persistently-enhanced strain hardening with improved tensile strength and maintained high plasticity in Fe–18Mn–1.0C than in Fe–22Mn–0.6C steel. This is primarily attributed to the gradual release of more densely-spaced thinner twins and twin bundles favored by the increased dynamic interactions between carbon and dislocations in the carbon-increased steel.
ISSN:0921-5093
1873-4936
DOI:10.1016/j.msea.2015.05.044