Hydrogen-assisted damage evolution in nitrogen-doped duplex stainless steel

Milene Yumi Maeda; Motomichi Koyama; Hayato Nishimura; Osvaldo Mitsuyuki Cintho; Eiji Akiyama

doi:10.1016/j.ijhydene.2020.10.152

Hydrogen-assisted damage evolution in nitrogen-doped duplex stainless steel

Milene Yumi Maeda, Motomichi Koyama, Hayato Nishimura, Osvaldo Mitsuyuki Cintho, Eiji Akiyama

Materials Design Division

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

5 Citations (Scopus)

Abstract

The effects of hydrogen on the ductility loss and fracture behavior of a nitrogen-doped duplex stainless steel were investigated via tensile testing after electrochemical hydrogen pre-charging. Post-mortem microstructure analyses were performed to characterize the microstructural damage evolution and fracture surface. Hydrogen charging of the steel resulted in quasi-cleavage and intergranular fractures, which were associated with transgranular austenite cracking and ferrite/austenite interface cracking, respectively. The crucial factors that resulted in brittle-like cracking were deformation twinning in austenite and nitrogen-related solution hardening.

Original language	English
Pages (from-to)	2716-2728
Number of pages	13
Journal	International Journal of Hydrogen Energy
Volume	46
Issue number	2
DOIs	https://doi.org/10.1016/j.ijhydene.2020.10.152
Publication status	Published - 2021 Jan 6

Keywords

Duplex stainless steel
EBSD
Hydrogen embrittlement
Microstructure
SEM
Twinning

ASJC Scopus subject areas

Renewable Energy, Sustainability and the Environment
Fuel Technology
Condensed Matter Physics
Energy Engineering and Power Technology

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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10.1016/j.ijhydene.2020.10.152

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title = "Hydrogen-assisted damage evolution in nitrogen-doped duplex stainless steel",

abstract = "The effects of hydrogen on the ductility loss and fracture behavior of a nitrogen-doped duplex stainless steel were investigated via tensile testing after electrochemical hydrogen pre-charging. Post-mortem microstructure analyses were performed to characterize the microstructural damage evolution and fracture surface. Hydrogen charging of the steel resulted in quasi-cleavage and intergranular fractures, which were associated with transgranular austenite cracking and ferrite/austenite interface cracking, respectively. The crucial factors that resulted in brittle-like cracking were deformation twinning in austenite and nitrogen-related solution hardening.",

keywords = "Duplex stainless steel, EBSD, Hydrogen embrittlement, Microstructure, SEM, Twinning",

author = "Maeda, {Milene Yumi} and Motomichi Koyama and Hayato Nishimura and Cintho, {Osvaldo Mitsuyuki} and Eiji Akiyama",

note = "Funding Information: This work was financially supported by JSPS KAKENHI ( JP20H02457 ), the Coordena{\c c}{\~a}o de Aperfei{\c c}oamento de Pessoal de N{\'i}vel Superior - Brasil ( CAPES ) - Finance Code 001 and Petrobras-Petroleo Brasileiro S.A . This work was supported by ICC-IMR, Tohoku University . Publisher Copyright: {\textcopyright} 2020 Hydrogen Energy Publications LLC",

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doi = "10.1016/j.ijhydene.2020.10.152",

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T1 - Hydrogen-assisted damage evolution in nitrogen-doped duplex stainless steel

AU - Maeda, Milene Yumi

AU - Koyama, Motomichi

AU - Nishimura, Hayato

AU - Cintho, Osvaldo Mitsuyuki

AU - Akiyama, Eiji

N1 - Funding Information: This work was financially supported by JSPS KAKENHI ( JP20H02457 ), the Coordenação de Aperfeiçoamento de Pessoal de Nível Superior - Brasil ( CAPES ) - Finance Code 001 and Petrobras-Petroleo Brasileiro S.A . This work was supported by ICC-IMR, Tohoku University . Publisher Copyright: © 2020 Hydrogen Energy Publications LLC

PY - 2021/1/6

Y1 - 2021/1/6

N2 - The effects of hydrogen on the ductility loss and fracture behavior of a nitrogen-doped duplex stainless steel were investigated via tensile testing after electrochemical hydrogen pre-charging. Post-mortem microstructure analyses were performed to characterize the microstructural damage evolution and fracture surface. Hydrogen charging of the steel resulted in quasi-cleavage and intergranular fractures, which were associated with transgranular austenite cracking and ferrite/austenite interface cracking, respectively. The crucial factors that resulted in brittle-like cracking were deformation twinning in austenite and nitrogen-related solution hardening.

AB - The effects of hydrogen on the ductility loss and fracture behavior of a nitrogen-doped duplex stainless steel were investigated via tensile testing after electrochemical hydrogen pre-charging. Post-mortem microstructure analyses were performed to characterize the microstructural damage evolution and fracture surface. Hydrogen charging of the steel resulted in quasi-cleavage and intergranular fractures, which were associated with transgranular austenite cracking and ferrite/austenite interface cracking, respectively. The crucial factors that resulted in brittle-like cracking were deformation twinning in austenite and nitrogen-related solution hardening.

KW - Duplex stainless steel

KW - EBSD

KW - Hydrogen embrittlement

KW - Microstructure

KW - SEM

KW - Twinning

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M3 - Article

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VL - 46

SP - 2716

EP - 2728

JO - International Journal of Hydrogen Energy

JF - International Journal of Hydrogen Energy

IS - 2

ER -

Hydrogen-assisted damage evolution in nitrogen-doped duplex stainless steel

Abstract

Keywords

ASJC Scopus subject areas

UN SDGs

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