Tensile deformation behavior and phase transformation in the weld coarse-grained heat-affected zone of metastable high-nitrogen Fe-18Cr-10Mn-N stainless steel

Joonoh Moon; Tae Ho Lee; Seong Jun Park; Jae Il Jang; Min Ho Jang; Heon Young Ha; Byoungchul Hwang

doi:10.1007/s11661-013-1682-2

Tensile deformation behavior and phase transformation in the weld coarse-grained heat-affected zone of metastable high-nitrogen Fe-18Cr-10Mn-N stainless steel

Joonoh Moon
, Tae Ho Lee
, Seong Jun Park
, Jae Il Jang
, Min Ho Jang
, Heon Young Ha
, Byoungchul Hwang

Dept. of Materials Science & Engineering

Research output: Contribution to journal › Article › peer-review

8 Scopus citations

Abstract

The tensile deformation behavior and phase transformation in the weld coarse-grained heat-affected zone (CGHAZ) of a metastable high-nitrogen austenitic stainless steel was explored through tensile tests, nanoindentation experiments, and transmission electron microscopy analysis. True stress-strain response during tensile test was found to be seriously affected by δ-ferrite fraction, which depends on peak temperature of the CGHAZs. The strain-induced martensitic transformation (SIMT) occurred in base steel, whereas the SIMT disappeared and deformation twinning occurred predominantly in the CGHAZs. The relationship among true stress-strain response, nanoindentation hardness, and deformed micro structures was carefully investigated and discussed in terms of changes of stacking fault energy.

Original language	English
Pages (from-to)	3069-3076
Number of pages	8
Journal	Metallurgical and Materials Transactions A: Physical Metallurgy and Materials Science
Volume	44
Issue number	7
DOIs	https://doi.org/10.1007/s11661-013-1682-2
State	Published - Jul 2013

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Moon, J., Lee, T. H., Park, S. J., Jang, J. I., Jang, M. H., Ha, H. Y., & Hwang, B. (2013). Tensile deformation behavior and phase transformation in the weld coarse-grained heat-affected zone of metastable high-nitrogen Fe-18Cr-10Mn-N stainless steel. Metallurgical and Materials Transactions A: Physical Metallurgy and Materials Science, 44(7), 3069-3076. https://doi.org/10.1007/s11661-013-1682-2

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title = "Tensile deformation behavior and phase transformation in the weld coarse-grained heat-affected zone of metastable high-nitrogen Fe-18Cr-10Mn-N stainless steel",

abstract = "The tensile deformation behavior and phase transformation in the weld coarse-grained heat-affected zone (CGHAZ) of a metastable high-nitrogen austenitic stainless steel was explored through tensile tests, nanoindentation experiments, and transmission electron microscopy analysis. True stress-strain response during tensile test was found to be seriously affected by δ-ferrite fraction, which depends on peak temperature of the CGHAZs. The strain-induced martensitic transformation (SIMT) occurred in base steel, whereas the SIMT disappeared and deformation twinning occurred predominantly in the CGHAZs. The relationship among true stress-strain response, nanoindentation hardness, and deformed micro structures was carefully investigated and discussed in terms of changes of stacking fault energy.",

author = "Joonoh Moon and Lee, \{Tae Ho\} and Park, \{Seong Jun\} and Jang, \{Jae Il\} and Jang, \{Min Ho\} and Ha, \{Heon Young\} and Byoungchul Hwang",

year = "2013",

month = jul,

doi = "10.1007/s11661-013-1682-2",

language = "English",

volume = "44",

pages = "3069--3076",

journal = "Metallurgical and Materials Transactions A: Physical Metallurgy and Materials Science",

issn = "1073-5623",

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Moon, J, Lee, TH, Park, SJ, Jang, JI, Jang, MH, Ha, HY & Hwang, B 2013, 'Tensile deformation behavior and phase transformation in the weld coarse-grained heat-affected zone of metastable high-nitrogen Fe-18Cr-10Mn-N stainless steel', Metallurgical and Materials Transactions A: Physical Metallurgy and Materials Science, vol. 44, no. 7, pp. 3069-3076. https://doi.org/10.1007/s11661-013-1682-2

Tensile deformation behavior and phase transformation in the weld coarse-grained heat-affected zone of metastable high-nitrogen Fe-18Cr-10Mn-N stainless steel. / Moon, Joonoh; Lee, Tae Ho; Park, Seong Jun et al.
In: Metallurgical and Materials Transactions A: Physical Metallurgy and Materials Science, Vol. 44, No. 7, 07.2013, p. 3069-3076.

Research output: Contribution to journal › Article › peer-review

TY - JOUR

T1 - Tensile deformation behavior and phase transformation in the weld coarse-grained heat-affected zone of metastable high-nitrogen Fe-18Cr-10Mn-N stainless steel

AU - Moon, Joonoh

AU - Lee, Tae Ho

AU - Park, Seong Jun

AU - Jang, Jae Il

AU - Jang, Min Ho

AU - Ha, Heon Young

AU - Hwang, Byoungchul

PY - 2013/7

Y1 - 2013/7

N2 - The tensile deformation behavior and phase transformation in the weld coarse-grained heat-affected zone (CGHAZ) of a metastable high-nitrogen austenitic stainless steel was explored through tensile tests, nanoindentation experiments, and transmission electron microscopy analysis. True stress-strain response during tensile test was found to be seriously affected by δ-ferrite fraction, which depends on peak temperature of the CGHAZs. The strain-induced martensitic transformation (SIMT) occurred in base steel, whereas the SIMT disappeared and deformation twinning occurred predominantly in the CGHAZs. The relationship among true stress-strain response, nanoindentation hardness, and deformed micro structures was carefully investigated and discussed in terms of changes of stacking fault energy.

AB - The tensile deformation behavior and phase transformation in the weld coarse-grained heat-affected zone (CGHAZ) of a metastable high-nitrogen austenitic stainless steel was explored through tensile tests, nanoindentation experiments, and transmission electron microscopy analysis. True stress-strain response during tensile test was found to be seriously affected by δ-ferrite fraction, which depends on peak temperature of the CGHAZs. The strain-induced martensitic transformation (SIMT) occurred in base steel, whereas the SIMT disappeared and deformation twinning occurred predominantly in the CGHAZs. The relationship among true stress-strain response, nanoindentation hardness, and deformed micro structures was carefully investigated and discussed in terms of changes of stacking fault energy.

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SN - 1073-5623

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JO - Metallurgical and Materials Transactions A: Physical Metallurgy and Materials Science

JF - Metallurgical and Materials Transactions A: Physical Metallurgy and Materials Science

IS - 7

ER -

Tensile deformation behavior and phase transformation in the weld coarse-grained heat-affected zone of metastable high-nitrogen Fe-18Cr-10Mn-N stainless steel

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