Precipitation of σ-phase in high-nitrogen austenitic 18Cr-18Mn-2Mo-0.9N stainless steel during isothermal aging

Tae Ho Lee; Chang Seok Oh; Chang Gil Lee; Sung Joon Kim; Setsuo Takaki

doi:10.1016/j.scriptamat.2004.02.013

Precipitation of σ-phase in high-nitrogen austenitic 18Cr-18Mn-2Mo-0.9N stainless steel during isothermal aging

Tae Ho Lee, Chang Seok Oh, Chang Gil Lee, Sung Joon Kim, Setsuo Takaki

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Abstract

Precipitation mechanism of σ-phase in austenitic high-nitrogen steel (HNS) upon aging was investigated using electron microscopy and thermodynamic calculation. The precipitation sequence was found to be grain boundary Cr ₂N, cellular Cr₂N and σ-phase with aging time. It was concluded that the nitrogen-depleted zone near Cr₂N induces the nucleation of σ-phase.

Original language	English
Pages (from-to)	1325-1328
Number of pages	4
Journal	Scripta Materialia
Volume	50
Issue number	10
DOIs	https://doi.org/10.1016/j.scriptamat.2004.02.013
Publication status	Published - May 2004

All Science Journal Classification (ASJC) codes

Materials Science(all)
Condensed Matter Physics
Mechanics of Materials
Mechanical Engineering
Metals and Alloys

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10.1016/j.scriptamat.2004.02.013

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@article{24153b3bb5624738bd25355f129ef696,

title = "Precipitation of σ-phase in high-nitrogen austenitic 18Cr-18Mn-2Mo-0.9N stainless steel during isothermal aging",

abstract = "Precipitation mechanism of σ-phase in austenitic high-nitrogen steel (HNS) upon aging was investigated using electron microscopy and thermodynamic calculation. The precipitation sequence was found to be grain boundary Cr 2N, cellular Cr2N and σ-phase with aging time. It was concluded that the nitrogen-depleted zone near Cr2N induces the nucleation of σ-phase.",

author = "Lee, {Tae Ho} and Oh, {Chang Seok} and Lee, {Chang Gil} and Kim, {Sung Joon} and Setsuo Takaki",

note = "Funding Information: One of author (Tae-Ho Lee) would like to thank to Dr. T. Tsuchiyama in Kyushu University for helpful discussion, and acknowledge the financial support by Japan Society for the Promotion of Science through the JSPS Dissertation Ph.D. program.",

year = "2004",

month = may,

doi = "10.1016/j.scriptamat.2004.02.013",

language = "English",

volume = "50",

pages = "1325--1328",

journal = "Scripta Materialia",

issn = "1359-6462",

publisher = "Elsevier Limited",

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TY - JOUR

T1 - Precipitation of σ-phase in high-nitrogen austenitic 18Cr-18Mn-2Mo-0.9N stainless steel during isothermal aging

AU - Lee, Tae Ho

AU - Oh, Chang Seok

AU - Lee, Chang Gil

AU - Kim, Sung Joon

AU - Takaki, Setsuo

N1 - Funding Information: One of author (Tae-Ho Lee) would like to thank to Dr. T. Tsuchiyama in Kyushu University for helpful discussion, and acknowledge the financial support by Japan Society for the Promotion of Science through the JSPS Dissertation Ph.D. program.

PY - 2004/5

Y1 - 2004/5

N2 - Precipitation mechanism of σ-phase in austenitic high-nitrogen steel (HNS) upon aging was investigated using electron microscopy and thermodynamic calculation. The precipitation sequence was found to be grain boundary Cr 2N, cellular Cr2N and σ-phase with aging time. It was concluded that the nitrogen-depleted zone near Cr2N induces the nucleation of σ-phase.

AB - Precipitation mechanism of σ-phase in austenitic high-nitrogen steel (HNS) upon aging was investigated using electron microscopy and thermodynamic calculation. The precipitation sequence was found to be grain boundary Cr 2N, cellular Cr2N and σ-phase with aging time. It was concluded that the nitrogen-depleted zone near Cr2N induces the nucleation of σ-phase.

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U2 - 10.1016/j.scriptamat.2004.02.013

DO - 10.1016/j.scriptamat.2004.02.013

M3 - Article

AN - SCOPUS:1642308113

SN - 1359-6462

VL - 50

SP - 1325

EP - 1328

JO - Scripta Materialia

JF - Scripta Materialia

IS - 10

ER -

Precipitation of σ-phase in high-nitrogen austenitic 18Cr-18Mn-2Mo-0.9N stainless steel during isothermal aging

Abstract

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