Reveal Hydrogen Behavior at Grain Boundaries in Fe–22Mn–0.6C TWIP Steel via In Situ Micropillar Compression Test

Xu Lu; Dong Wang; Di Wan; Xiaofei Guo; Roy Johnsen

doi:10.1007/s40195-021-01370-7

Reveal Hydrogen Behavior at Grain Boundaries in Fe–22Mn–0.6C TWIP Steel via In Situ Micropillar Compression Test

Xu Lu, Dong Wang^*, Di Wan, Xiaofei Guo^*, Roy Johnsen

^*Corresponding author for this work

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

2 Citations (Scopus)

Abstract

In this study, the effect of hydrogen on dislocation and twinning behavior along various grain boundaries in a high-manganese twinning-induced plasticity steel was investigated using an in situ micropillar compression test. The compressive stress in both elastic and plastic regimes was increased with the presence of hydrogen. Further investigation by transmission electron backscatter diffraction and scanning transmission electron microscope demonstrated that hydrogen promoted both dislocation multiplication and twin formation, which resulted in higher stress concentration at twin–twin and twin–grain boundary intersections.

Original language	English
Pages (from-to)	1095-1104
Number of pages	10
Journal	Acta Metallurgica Sinica (English Letters)
Volume	36
Issue number	7
DOIs	https://doi.org/10.1007/s40195-021-01370-7
Publication status	Published - Jul 2023
Externally published	Yes

Keywords

Grain boundary
Hydrogen
Micropillar compression
TWIP steel
t-EBSD

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10.1007/s40195-021-01370-7

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title = "Reveal Hydrogen Behavior at Grain Boundaries in Fe–22Mn–0.6C TWIP Steel via In Situ Micropillar Compression Test",

abstract = "In this study, the effect of hydrogen on dislocation and twinning behavior along various grain boundaries in a high-manganese twinning-induced plasticity steel was investigated using an in situ micropillar compression test. The compressive stress in both elastic and plastic regimes was increased with the presence of hydrogen. Further investigation by transmission electron backscatter diffraction and scanning transmission electron microscope demonstrated that hydrogen promoted both dislocation multiplication and twin formation, which resulted in higher stress concentration at twin–twin and twin–grain boundary intersections.",

keywords = "Grain boundary, Hydrogen, Micropillar compression, TWIP steel, t-EBSD",

author = "Xu Lu and Dong Wang and Di Wan and Xiaofei Guo and Roy Johnsen",

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doi = "10.1007/s40195-021-01370-7",

language = "English",

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T1 - Reveal Hydrogen Behavior at Grain Boundaries in Fe–22Mn–0.6C TWIP Steel via In Situ Micropillar Compression Test

AU - Lu, Xu

AU - Wang, Dong

AU - Wan, Di

AU - Guo, Xiaofei

AU - Johnsen, Roy

PY - 2023/7

Y1 - 2023/7

N2 - In this study, the effect of hydrogen on dislocation and twinning behavior along various grain boundaries in a high-manganese twinning-induced plasticity steel was investigated using an in situ micropillar compression test. The compressive stress in both elastic and plastic regimes was increased with the presence of hydrogen. Further investigation by transmission electron backscatter diffraction and scanning transmission electron microscope demonstrated that hydrogen promoted both dislocation multiplication and twin formation, which resulted in higher stress concentration at twin–twin and twin–grain boundary intersections.

AB - In this study, the effect of hydrogen on dislocation and twinning behavior along various grain boundaries in a high-manganese twinning-induced plasticity steel was investigated using an in situ micropillar compression test. The compressive stress in both elastic and plastic regimes was increased with the presence of hydrogen. Further investigation by transmission electron backscatter diffraction and scanning transmission electron microscope demonstrated that hydrogen promoted both dislocation multiplication and twin formation, which resulted in higher stress concentration at twin–twin and twin–grain boundary intersections.

KW - Grain boundary

KW - Hydrogen

KW - Micropillar compression

KW - TWIP steel

KW - t-EBSD

UR - http://www.scopus.com/inward/record.url?scp=85122528504&partnerID=8YFLogxK

U2 - 10.1007/s40195-021-01370-7

DO - 10.1007/s40195-021-01370-7

M3 - Article

AN - SCOPUS:85122528504

SN - 1006-7191

VL - 36

SP - 1095

EP - 1104

JO - Acta Metallurgica Sinica (English Letters)

JF - Acta Metallurgica Sinica (English Letters)

IS - 7

ER -

Reveal Hydrogen Behavior at Grain Boundaries in Fe–22Mn–0.6C TWIP Steel via In Situ Micropillar Compression Test

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Keywords

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