New insights into hydrogen trapping and embrittlement in high strength aluminum alloys

Mahdieh Safyari; Nabil Khossossi; Thomas Meisel; Poulumi Dey; Thomas Prohaska; Masoud Moshtaghi

doi:10.1016/j.corsci.2023.111453

New insights into hydrogen trapping and embrittlement in high strength aluminum alloys

Mahdieh Safyari, Nabil Khossossi, Thomas Meisel, Poulumi Dey, Thomas Prohaska, Masoud Moshtaghi

LKR Light Metals Technologies

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

Abstract

An attractive approach to mitigate hydrogen embrittlement (HE) is to use nano-sized particles to immobilize hydrogen. However, the atomic scale relationship between different particle-matrix characteristics in aluminum alloys and the susceptibility to HE is unknown. In this study, the effects of interactions between various interfaces and hydrogen in aluminum alloys are investigated using a comprehensive multiscale experimental and simulation-based approach that includes atomic-scale observations, simulation and advanced hydrogen mapping techniques. Depending on the nature of interfaces, e.g., coherency, size, and crystal structure, some are useful for mitigating HE, others provide hydrogen to sensitive sites, and some act as crack initiation sites.

Original language	Undefined/Unknown
Number of pages	13
Journal	Corrosion Science
Volume	223
DOIs	https://doi.org/10.1016/j.corsci.2023.111453
Publication status	Published - 1 Oct 2023

Research Field

Wire-Based Additive Manufacturing

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10.1016/j.corsci.2023.111453Licence: CC BY

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title = "New insights into hydrogen trapping and embrittlement in high strength aluminum alloys",

abstract = "An attractive approach to mitigate hydrogen embrittlement (HE) is to use nano-sized particles to immobilize hydrogen. However, the atomic scale relationship between different particle-matrix characteristics in aluminum alloys and the susceptibility to HE is unknown. In this study, the effects of interactions between various interfaces and hydrogen in aluminum alloys are investigated using a comprehensive multiscale experimental and simulation-based approach that includes atomic-scale observations, simulation and advanced hydrogen mapping techniques. Depending on the nature of interfaces, e.g., coherency, size, and crystal structure, some are useful for mitigating HE, others provide hydrogen to sensitive sites, and some act as crack initiation sites.",

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T1 - New insights into hydrogen trapping and embrittlement in high strength aluminum alloys

AU - Safyari, Mahdieh

AU - Khossossi, Nabil

AU - Meisel, Thomas

AU - Dey, Poulumi

AU - Prohaska, Thomas

AU - Moshtaghi, Masoud

PY - 2023/10/1

Y1 - 2023/10/1

N2 - An attractive approach to mitigate hydrogen embrittlement (HE) is to use nano-sized particles to immobilize hydrogen. However, the atomic scale relationship between different particle-matrix characteristics in aluminum alloys and the susceptibility to HE is unknown. In this study, the effects of interactions between various interfaces and hydrogen in aluminum alloys are investigated using a comprehensive multiscale experimental and simulation-based approach that includes atomic-scale observations, simulation and advanced hydrogen mapping techniques. Depending on the nature of interfaces, e.g., coherency, size, and crystal structure, some are useful for mitigating HE, others provide hydrogen to sensitive sites, and some act as crack initiation sites.

AB - An attractive approach to mitigate hydrogen embrittlement (HE) is to use nano-sized particles to immobilize hydrogen. However, the atomic scale relationship between different particle-matrix characteristics in aluminum alloys and the susceptibility to HE is unknown. In this study, the effects of interactions between various interfaces and hydrogen in aluminum alloys are investigated using a comprehensive multiscale experimental and simulation-based approach that includes atomic-scale observations, simulation and advanced hydrogen mapping techniques. Depending on the nature of interfaces, e.g., coherency, size, and crystal structure, some are useful for mitigating HE, others provide hydrogen to sensitive sites, and some act as crack initiation sites.

UR - https://doi.org/10.1016/j.corsci.2023.111453

U2 - 10.1016/j.corsci.2023.111453

DO - 10.1016/j.corsci.2023.111453

M3 - Article

SN - 0010-938X

VL - 223

JO - Corrosion Science

JF - Corrosion Science

ER -

New insights into hydrogen trapping and embrittlement in high strength aluminum alloys

Abstract

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