In situ and ex situ neutron diffraction study on deformation behavior of high-nitrogen, Ni-free duplex stainless steel

Tae Ho Lee; Heon Young Ha; Jun Yun Kang; Byoungchul Hwang; Wanchuk Woo; Eunjoo Shin

doi:10.1016/j.scriptamat.2012.03.043

In situ and ex situ neutron diffraction study on deformation behavior of high-nitrogen, Ni-free duplex stainless steel

Tae Ho Lee, Heon Young Ha, Jun Yun Kang, Byoungchul Hwang, Wanchuk Woo, Eunjoo Shin

Dept. of Materials Science & Engineering

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

25 Scopus citations

Abstract

In situ and ex situ neutron diffraction were used to investigate the deformation behavior of high-nitrogen, nickel-free duplex stainless steel. During in situ deformation, both ferrite and austenite deformed plastically to the same degree. The stacking fault energy of austenite was evaluated to be 36.2 mJ m ^-2 from ex situ neutron profiles, which correlated well with the observed deformation microstructure of twin formation. A significant decrease in the effective particle size of austenite was due to the formation of deformation twins.

Original language	English
Pages (from-to)	141-144
Number of pages	4
Journal	Scripta Materialia
Volume	67
Issue number	2
DOIs	https://doi.org/10.1016/j.scriptamat.2012.03.043
State	Published - Jul 2012

Keywords

Neutron diffraction
Nitrogen
Stacking fault energy
Stainless steels
Twinning

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title = "In situ and ex situ neutron diffraction study on deformation behavior of high-nitrogen, Ni-free duplex stainless steel",

abstract = "In situ and ex situ neutron diffraction were used to investigate the deformation behavior of high-nitrogen, nickel-free duplex stainless steel. During in situ deformation, both ferrite and austenite deformed plastically to the same degree. The stacking fault energy of austenite was evaluated to be 36.2 mJ m -2 from ex situ neutron profiles, which correlated well with the observed deformation microstructure of twin formation. A significant decrease in the effective particle size of austenite was due to the formation of deformation twins.",

keywords = "Neutron diffraction, Nitrogen, Stacking fault energy, Stainless steels, Twinning",

author = "Lee, \{Tae Ho\} and Ha, \{Heon Young\} and Kang, \{Jun Yun\} and Byoungchul Hwang and Wanchuk Woo and Eunjoo Shin",

year = "2012",

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doi = "10.1016/j.scriptamat.2012.03.043",

language = "English",

volume = "67",

pages = "141--144",

journal = "Scripta Materialia",

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T1 - In situ and ex situ neutron diffraction study on deformation behavior of high-nitrogen, Ni-free duplex stainless steel

AU - Lee, Tae Ho

AU - Ha, Heon Young

AU - Kang, Jun Yun

AU - Hwang, Byoungchul

AU - Woo, Wanchuk

AU - Shin, Eunjoo

PY - 2012/7

Y1 - 2012/7

N2 - In situ and ex situ neutron diffraction were used to investigate the deformation behavior of high-nitrogen, nickel-free duplex stainless steel. During in situ deformation, both ferrite and austenite deformed plastically to the same degree. The stacking fault energy of austenite was evaluated to be 36.2 mJ m -2 from ex situ neutron profiles, which correlated well with the observed deformation microstructure of twin formation. A significant decrease in the effective particle size of austenite was due to the formation of deformation twins.

AB - In situ and ex situ neutron diffraction were used to investigate the deformation behavior of high-nitrogen, nickel-free duplex stainless steel. During in situ deformation, both ferrite and austenite deformed plastically to the same degree. The stacking fault energy of austenite was evaluated to be 36.2 mJ m -2 from ex situ neutron profiles, which correlated well with the observed deformation microstructure of twin formation. A significant decrease in the effective particle size of austenite was due to the formation of deformation twins.

KW - Neutron diffraction

KW - Nitrogen

KW - Stacking fault energy

KW - Stainless steels

KW - Twinning

UR - http://www.scopus.com/inward/record.url?scp=84861846220&partnerID=8YFLogxK

U2 - 10.1016/j.scriptamat.2012.03.043

DO - 10.1016/j.scriptamat.2012.03.043

M3 - Article

AN - SCOPUS:84861846220

SN - 1359-6462

VL - 67

SP - 141

EP - 144

JO - Scripta Materialia

JF - Scripta Materialia

IS - 2

ER -

In situ and ex situ neutron diffraction study on deformation behavior of high-nitrogen, Ni-free duplex stainless steel

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Keywords

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