Hydrogen Embrittlement in a Plasma Tungsten Inert Gas‐Welded Austenitic CrMnNi Stainless Steel

Hempel, Christian; Mandel, Marcel; Quitzke, Caroline; Radajewski, Markus; Schröder, Christina; Wendler, Marco; Volkova, Olena; Krüger, Lutz

doi:10.1002/srin.202200870

Cited by 2 publications

(1 citation statement)

References 58 publications

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“…Because the permeated hydrogen passed through the δ-ferrite phase, the absence of permeated A d v a n c e V i e w hydrogen in the δ-ferrite phase in spot 2 was attributed to the spatial structures of the δ-ferrite phases between the entry and exit surfaces. The δ-ferrite phase has the function of increasing the sensitivity of HE for weld metals by increasing the hydrogen concentration inside the material [30]. Therefore, the mechanism of HE inside weld metals is closely related to not only hydrogen segregation by precipitates but also internal microstructures, such as spatial structures of the δ-ferrite phases.…”

Section: A D V a N C E V I E Wmentioning

confidence: 99%

Invasion/Permeation Hydrogen in Cathodic Charged SUS316 Columnar Crystals Evaluated with a Scanning Kelvin Probe Force Microscope

Murase,

Katayama

2024

Mater. Trans.

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The monitoring of invasion/permeation hydrogen on entry/exit surfaces of cathodically charged SUS316 columnar crystals was conducted with a scanning Kelvin probe force microscope (SKPFM) under atmospheric pressure. Columnar crystal specimens covered with oxide films on their surfaces under room conditions were prepared for cathodic charging tests and subsequent SKPFM measurements. The invaded hydrogen on the entry surface was detected at the δ-ferrite phases for 7 d after charging, and the segregation of invaded hydrogen at the boundaries between the δ-ferrite and austenite matrix was prolonged for >10 d after charging. The permeated hydrogen on the exit surface was detected at the δferrite phases for 3 d after charging, but was not substantial at some of the δ-ferrite phases regardless of the charging. Segregation of permeated hydrogen at the boundaries between the δ-ferrite and some of the intermetallic precipitates was prolonged for 7 d after charging. The behaviors of invaded/permeated hydrogen based on heterogeneous microstructures are discussed to improve understanding of the hydrogen embrittlement mechanism in weld metals.

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Section: A D V a N C E V I E Wmentioning

confidence: 99%

Invasion/Permeation Hydrogen in Cathodic Charged SUS316 Columnar Crystals Evaluated with a Scanning Kelvin Probe Force Microscope

Murase,

Katayama

2024

Mater. Trans.

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Role of Ti and Cr on microstructure and hydrogen embrittlement of welded joint of low-alloy steel used for armor layer

Liu,

Wang,

Zhai

et al. 2024

Materials Science and Engineering: A

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Hydrogen Embrittlement in a Plasma Tungsten Inert Gas‐Welded Austenitic CrMnNi Stainless Steel

Abstract: The ORCID identification number(s) for the author(s) of this article can be found under https://doi.org/10.1002/srin.202200870.

Cited by 2 publications

References 58 publications

Invasion/Permeation Hydrogen in Cathodic Charged SUS316 Columnar Crystals Evaluated with a Scanning Kelvin Probe Force Microscope

Invasion/Permeation Hydrogen in Cathodic Charged SUS316 Columnar Crystals Evaluated with a Scanning Kelvin Probe Force Microscope

Role of Ti and Cr on microstructure and hydrogen embrittlement of welded joint of low-alloy steel used for armor layer

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