The effect of Ti precipitates on hydrogen embrittlement of Fe-18Mn-0.6C-2Al-xTi twinning-induced plasticity steel

Il Jeong Park; Seo Yeon Jo; Minwoo Kang; Sang Min Lee; Young Kook Lee

doi:10.1016/j.corsci.2014.08.005

The effect of Ti precipitates on hydrogen embrittlement of Fe-18Mn-0.6C-2Al-xTi twinning-induced plasticity steel

Il Jeong Park, Seo Yeon Jo, Minwoo Kang, Sang Min Lee, Young Kook Lee

Department of Materials Science and Engineering

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

45 Citations (Scopus)

Abstract

The effect of Ti precipitates on hydrogen embrittlement (HE) was investigated using Ti-free and Ti-bearing TWIP steels through slow tensile tests and thermal desorption analysis. Whereas Ti-free steel did not show the reduction in elongation by hydrogen charging, Ti-bearing steel revealed a great reduction in elongation, indicative of the low resistance to HE. During plastic deformation, hydrogen atoms migrated from grain boundaries and dislocations to twin boundaries for Ti-free steel and to the interfaces of Ti particles for Ti-bearing steel. The low resistance to HE of Ti-bearing steel was due to a ductile to brittle transition near hydrogen-trapped TiN particles.

Original language	English
Pages (from-to)	38-45
Number of pages	8
Journal	Corrosion Science
Volume	89
Issue number	C
DOIs	https://doi.org/10.1016/j.corsci.2014.08.005
Publication status	Published - 2014

Bibliographical note

Publisher Copyright:
© 2014 Elsevier Ltd.

All Science Journal Classification (ASJC) codes

Chemistry(all)
Chemical Engineering(all)
Materials Science(all)

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10.1016/j.corsci.2014.08.005

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title = "The effect of Ti precipitates on hydrogen embrittlement of Fe-18Mn-0.6C-2Al-xTi twinning-induced plasticity steel",

abstract = "The effect of Ti precipitates on hydrogen embrittlement (HE) was investigated using Ti-free and Ti-bearing TWIP steels through slow tensile tests and thermal desorption analysis. Whereas Ti-free steel did not show the reduction in elongation by hydrogen charging, Ti-bearing steel revealed a great reduction in elongation, indicative of the low resistance to HE. During plastic deformation, hydrogen atoms migrated from grain boundaries and dislocations to twin boundaries for Ti-free steel and to the interfaces of Ti particles for Ti-bearing steel. The low resistance to HE of Ti-bearing steel was due to a ductile to brittle transition near hydrogen-trapped TiN particles.",

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T1 - The effect of Ti precipitates on hydrogen embrittlement of Fe-18Mn-0.6C-2Al-xTi twinning-induced plasticity steel

AU - Park, Il Jeong

AU - Jo, Seo Yeon

AU - Kang, Minwoo

AU - Lee, Sang Min

AU - Lee, Young Kook

PY - 2014

Y1 - 2014

N2 - The effect of Ti precipitates on hydrogen embrittlement (HE) was investigated using Ti-free and Ti-bearing TWIP steels through slow tensile tests and thermal desorption analysis. Whereas Ti-free steel did not show the reduction in elongation by hydrogen charging, Ti-bearing steel revealed a great reduction in elongation, indicative of the low resistance to HE. During plastic deformation, hydrogen atoms migrated from grain boundaries and dislocations to twin boundaries for Ti-free steel and to the interfaces of Ti particles for Ti-bearing steel. The low resistance to HE of Ti-bearing steel was due to a ductile to brittle transition near hydrogen-trapped TiN particles.

AB - The effect of Ti precipitates on hydrogen embrittlement (HE) was investigated using Ti-free and Ti-bearing TWIP steels through slow tensile tests and thermal desorption analysis. Whereas Ti-free steel did not show the reduction in elongation by hydrogen charging, Ti-bearing steel revealed a great reduction in elongation, indicative of the low resistance to HE. During plastic deformation, hydrogen atoms migrated from grain boundaries and dislocations to twin boundaries for Ti-free steel and to the interfaces of Ti particles for Ti-bearing steel. The low resistance to HE of Ti-bearing steel was due to a ductile to brittle transition near hydrogen-trapped TiN particles.

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JO - Corrosion Science

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The effect of Ti precipitates on hydrogen embrittlement of Fe-18Mn-0.6C-2Al-xTi twinning-induced plasticity steel

Abstract

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