Strong resistance to hydrogen embrittlement via surface shielding in multi-layered austenite/martensite steel sheets

Min Cheol Jo; Min Chul Jo; Jisung Yoo; Taejin Song; Sang Heon Kim; Seok Su Sohn; Sunghak Lee

doi:10.1016/j.msea.2020.140319

Strong resistance to hydrogen embrittlement via surface shielding in multi-layered austenite/martensite steel sheets

Min Cheol Jo, Min Chul Jo, Jisung Yoo, Taejin Song, Sang Heon Kim, Seok Su Sohn, Sunghak Lee

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

5 Citations (Scopus)

Abstract

Layered architectures have been applied to twinning-induced plasticity (TWIP) steel in terms of configuring multi-layered TWIP and martensitic steel (MLS) sheets to overcome the limitation of low yield strength. However, hydrogen embrittlement (HE) inevitably appears in materials used for high-strength purposes, with the interfacial layers presenting localization sites of hydrogen, thereby limiting the materials’ broad structural applications. Here, we present a novel design for MLS sheets that exhibit both strong resistance to HE and a good strength–ductility balance via surface shielding. Our hydrogen penetration data demonstrates that the proposed austenitic shielding structure effectively acts as a barrier to hydrogen due to the reduced hydrogen diffusivity, compared with existing MLS sheets. We propose the optimal surface thickness required to play the role of shielding layer based on the quantified diffusivity and the rule of mixtures of the layer fractions, which presents a plausible novel design for layered architectures that exhibit strong resistance to HE and possess tunable mechanical properties.

Original language	English
Article number	140319
Journal	Materials Science and Engineering A
Volume	800
DOIs	https://doi.org/10.1016/j.msea.2020.140319
Publication status	Published - 2021 Jan 7

Bibliographical note

Funding Information:
This work was supported by the Korea University Grant for Dr. S.S. Sohn, by the National Research Foundation of Korea ( NRF-2020R1C1C1003554 ), and by Korea Institute for Advancement of Technology (KIAT) grant funded by the Korea Government (MOTIE) ( P0002019 , The Competency Development Program for Industry Specialist), and by the Brain Korea 21 PLUS Project for Center for Creative Industrial Materials.

Publisher Copyright:
© 2020 Elsevier B.V.

Keywords

High-strength multi-layered steel
Hydrogen diffusivity
Hydrogen embrittlement
Interfacial delamination
Mechanical properties

ASJC Scopus subject areas

General Materials Science
Condensed Matter Physics
Mechanics of Materials
Mechanical Engineering

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10.1016/j.msea.2020.140319

Cite this

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title = "Strong resistance to hydrogen embrittlement via surface shielding in multi-layered austenite/martensite steel sheets",

abstract = "Layered architectures have been applied to twinning-induced plasticity (TWIP) steel in terms of configuring multi-layered TWIP and martensitic steel (MLS) sheets to overcome the limitation of low yield strength. However, hydrogen embrittlement (HE) inevitably appears in materials used for high-strength purposes, with the interfacial layers presenting localization sites of hydrogen, thereby limiting the materials{\textquoteright} broad structural applications. Here, we present a novel design for MLS sheets that exhibit both strong resistance to HE and a good strength–ductility balance via surface shielding. Our hydrogen penetration data demonstrates that the proposed austenitic shielding structure effectively acts as a barrier to hydrogen due to the reduced hydrogen diffusivity, compared with existing MLS sheets. We propose the optimal surface thickness required to play the role of shielding layer based on the quantified diffusivity and the rule of mixtures of the layer fractions, which presents a plausible novel design for layered architectures that exhibit strong resistance to HE and possess tunable mechanical properties.",

keywords = "High-strength multi-layered steel, Hydrogen diffusivity, Hydrogen embrittlement, Interfacial delamination, Mechanical properties",

author = "Jo, {Min Cheol} and Jo, {Min Chul} and Jisung Yoo and Taejin Song and Kim, {Sang Heon} and Sohn, {Seok Su} and Sunghak Lee",

note = "Funding Information: This work was supported by the Korea University Grant for Dr. S.S. Sohn, by the National Research Foundation of Korea ( NRF-2020R1C1C1003554 ), and by Korea Institute for Advancement of Technology (KIAT) grant funded by the Korea Government (MOTIE) ( P0002019 , The Competency Development Program for Industry Specialist), and by the Brain Korea 21 PLUS Project for Center for Creative Industrial Materials. Publisher Copyright: {\textcopyright} 2020 Elsevier B.V.",

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doi = "10.1016/j.msea.2020.140319",

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AU - Jo, Min Cheol

AU - Jo, Min Chul

AU - Yoo, Jisung

AU - Song, Taejin

AU - Kim, Sang Heon

AU - Sohn, Seok Su

AU - Lee, Sunghak

N1 - Funding Information: This work was supported by the Korea University Grant for Dr. S.S. Sohn, by the National Research Foundation of Korea ( NRF-2020R1C1C1003554 ), and by Korea Institute for Advancement of Technology (KIAT) grant funded by the Korea Government (MOTIE) ( P0002019 , The Competency Development Program for Industry Specialist), and by the Brain Korea 21 PLUS Project for Center for Creative Industrial Materials. Publisher Copyright: © 2020 Elsevier B.V.

PY - 2021/1/7

Y1 - 2021/1/7

N2 - Layered architectures have been applied to twinning-induced plasticity (TWIP) steel in terms of configuring multi-layered TWIP and martensitic steel (MLS) sheets to overcome the limitation of low yield strength. However, hydrogen embrittlement (HE) inevitably appears in materials used for high-strength purposes, with the interfacial layers presenting localization sites of hydrogen, thereby limiting the materials’ broad structural applications. Here, we present a novel design for MLS sheets that exhibit both strong resistance to HE and a good strength–ductility balance via surface shielding. Our hydrogen penetration data demonstrates that the proposed austenitic shielding structure effectively acts as a barrier to hydrogen due to the reduced hydrogen diffusivity, compared with existing MLS sheets. We propose the optimal surface thickness required to play the role of shielding layer based on the quantified diffusivity and the rule of mixtures of the layer fractions, which presents a plausible novel design for layered architectures that exhibit strong resistance to HE and possess tunable mechanical properties.

AB - Layered architectures have been applied to twinning-induced plasticity (TWIP) steel in terms of configuring multi-layered TWIP and martensitic steel (MLS) sheets to overcome the limitation of low yield strength. However, hydrogen embrittlement (HE) inevitably appears in materials used for high-strength purposes, with the interfacial layers presenting localization sites of hydrogen, thereby limiting the materials’ broad structural applications. Here, we present a novel design for MLS sheets that exhibit both strong resistance to HE and a good strength–ductility balance via surface shielding. Our hydrogen penetration data demonstrates that the proposed austenitic shielding structure effectively acts as a barrier to hydrogen due to the reduced hydrogen diffusivity, compared with existing MLS sheets. We propose the optimal surface thickness required to play the role of shielding layer based on the quantified diffusivity and the rule of mixtures of the layer fractions, which presents a plausible novel design for layered architectures that exhibit strong resistance to HE and possess tunable mechanical properties.

KW - High-strength multi-layered steel

KW - Hydrogen diffusivity

KW - Hydrogen embrittlement

KW - Interfacial delamination

KW - Mechanical properties

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DO - 10.1016/j.msea.2020.140319

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Strong resistance to hydrogen embrittlement via surface shielding in multi-layered austenite/martensite steel sheets

Abstract

Bibliographical note

Keywords

ASJC Scopus subject areas

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