Enhanced mechanical properties in a high-manganese austenitic steel through formation of nano grains, nanotwinned austenite grains, nano carbides and TRIP

P. Behjati; A. Kermanpur; A. Najafizadeh; H. Samaei Baghbadorani; J. G. Jung; Y. K. Lee

doi:10.1016/j.msea.2014.05.015

Enhanced mechanical properties in a high-manganese austenitic steel through formation of nano grains, nanotwinned austenite grains, nano carbides and TRIP

P. Behjati^*
, A. Kermanpur
, A. Najafizadeh
, H. Samaei Baghbadorani
, J. G. Jung
, Y. K. Lee

^*Corresponding author for this work

Metallurgical System Engineering

Isfahan University of Technology
Yonsei University
Korea Institute of Materials Science

Research output: Contribution to journal › Journal article › peer-review

23 Scopus citations

Abstract

In this work, a specific thermomechanical treatment was used to enhance mechanical properties of a high-manganese austenitic steel. Simple uniaxial tension tests revealed that the treated steel exhibits an outstanding strength (yield strength: 970. MPa and tensile strength: 1384. MPa) and ductility (fracture strain: 37%) synergy. Microstructural studies showed that several strengthening mechanisms contribute to mechanical properties of the treated steel, including nano grains, nano twinned austenite grains, nano carbides and TRIP. Stacking fault energy and strain-induced martensitic transformation were found to have an important role in appropriate adjustment of the strengthening mechanisms to achieve the optimum properties.

Original language	English
Pages (from-to)	273-278
Number of pages	6
Journal	Materials Science and Engineering: A
Volume	610
DOIs	https://doi.org/10.1016/j.msea.2014.05.015
State	Published - 2014.07.29

Keywords

Austenitic steel
Carbides
Martensitic transformation
Mechanical properties
Nanostructured material
Twin

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10.1016/j.msea.2014.05.015

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title = "Enhanced mechanical properties in a high-manganese austenitic steel through formation of nano grains, nanotwinned austenite grains, nano carbides and TRIP",

abstract = "In this work, a specific thermomechanical treatment was used to enhance mechanical properties of a high-manganese austenitic steel. Simple uniaxial tension tests revealed that the treated steel exhibits an outstanding strength (yield strength: 970. MPa and tensile strength: 1384. MPa) and ductility (fracture strain: 37\%) synergy. Microstructural studies showed that several strengthening mechanisms contribute to mechanical properties of the treated steel, including nano grains, nano twinned austenite grains, nano carbides and TRIP. Stacking fault energy and strain-induced martensitic transformation were found to have an important role in appropriate adjustment of the strengthening mechanisms to achieve the optimum properties.",

keywords = "Austenitic steel, Carbides, Martensitic transformation, Mechanical properties, Nanostructured material, Twin",

author = "P. Behjati and A. Kermanpur and A. Najafizadeh and \{Samaei Baghbadorani\}, H. and Jung, \{J. G.\} and Lee, \{Y. K.\}",

year = "2014",

month = jul,

day = "29",

doi = "10.1016/j.msea.2014.05.015",

language = "English",

volume = "610",

pages = "273--278",

journal = "Materials Science and Engineering: A",

issn = "0921-5093",

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TY - JOUR

T1 - Enhanced mechanical properties in a high-manganese austenitic steel through formation of nano grains, nanotwinned austenite grains, nano carbides and TRIP

AU - Behjati, P.

AU - Kermanpur, A.

AU - Najafizadeh, A.

AU - Samaei Baghbadorani, H.

AU - Jung, J. G.

AU - Lee, Y. K.

PY - 2014/7/29

Y1 - 2014/7/29

N2 - In this work, a specific thermomechanical treatment was used to enhance mechanical properties of a high-manganese austenitic steel. Simple uniaxial tension tests revealed that the treated steel exhibits an outstanding strength (yield strength: 970. MPa and tensile strength: 1384. MPa) and ductility (fracture strain: 37%) synergy. Microstructural studies showed that several strengthening mechanisms contribute to mechanical properties of the treated steel, including nano grains, nano twinned austenite grains, nano carbides and TRIP. Stacking fault energy and strain-induced martensitic transformation were found to have an important role in appropriate adjustment of the strengthening mechanisms to achieve the optimum properties.

AB - In this work, a specific thermomechanical treatment was used to enhance mechanical properties of a high-manganese austenitic steel. Simple uniaxial tension tests revealed that the treated steel exhibits an outstanding strength (yield strength: 970. MPa and tensile strength: 1384. MPa) and ductility (fracture strain: 37%) synergy. Microstructural studies showed that several strengthening mechanisms contribute to mechanical properties of the treated steel, including nano grains, nano twinned austenite grains, nano carbides and TRIP. Stacking fault energy and strain-induced martensitic transformation were found to have an important role in appropriate adjustment of the strengthening mechanisms to achieve the optimum properties.

KW - Austenitic steel

KW - Carbides

KW - Martensitic transformation

KW - Mechanical properties

KW - Nanostructured material

KW - Twin

UR - https://www.scopus.com/pages/publications/84901985225

U2 - 10.1016/j.msea.2014.05.015

DO - 10.1016/j.msea.2014.05.015

M3 - Journal article

AN - SCOPUS:84901985225

SN - 0921-5093

VL - 610

SP - 273

EP - 278

JO - Materials Science and Engineering: A

JF - Materials Science and Engineering: A

ER -

Enhanced mechanical properties in a high-manganese austenitic steel through formation of nano grains, nanotwinned austenite grains, nano carbides and TRIP

Abstract

Keywords

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