Positive and negative effects of hydrogen on tensile behavior in polycrystalline Fe-30Mn-(6 - X)Si-xAl austenitic alloys

Kensuke Yamada; Motomichi Koyama; Takahiro Kaneko; Kaneaki Tsuzaki

doi:10.1016/j.scriptamat.2015.05.007

Positive and negative effects of hydrogen on tensile behavior in polycrystalline Fe-30Mn-(6 - X)Si-xAl austenitic alloys

Kensuke Yamada, Motomichi Koyama, Takahiro Kaneko, Kaneaki Tsuzaki

Strength of materials

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

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Abstract

We investigated the tensile properties of Fe-30Mn-(6 - x)Si-xAl (in wt.%, x = 0, 2, 3, 6) austenitic alloys precharged with hydrogen gas at 10 MPa. The Fe-30Mn-6Al alloy showed hydrogen-improved elongation through enhancement of work hardening capacity in the plastic instability condition, although the other alloys did not. This improvement in elongation is considered to be a result of a reduction in stacking fault energy because deformation twinning appeared only in the hydrogen-precharged condition.

Original language	English
Pages (from-to)	54-57
Number of pages	4
Journal	Scripta Materialia
Volume	105
DOIs	https://doi.org/10.1016/j.scriptamat.2015.05.007
Publication status	Published - Aug 1 2015

All Science Journal Classification (ASJC) codes

Materials Science(all)
Condensed Matter Physics
Mechanics of Materials
Mechanical Engineering
Metals and Alloys

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10.1016/j.scriptamat.2015.05.007

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title = "Positive and negative effects of hydrogen on tensile behavior in polycrystalline Fe-30Mn-(6 - X)Si-xAl austenitic alloys",

abstract = "We investigated the tensile properties of Fe-30Mn-(6 - x)Si-xAl (in wt.%, x = 0, 2, 3, 6) austenitic alloys precharged with hydrogen gas at 10 MPa. The Fe-30Mn-6Al alloy showed hydrogen-improved elongation through enhancement of work hardening capacity in the plastic instability condition, although the other alloys did not. This improvement in elongation is considered to be a result of a reduction in stacking fault energy because deformation twinning appeared only in the hydrogen-precharged condition.",

author = "Kensuke Yamada and Motomichi Koyama and Takahiro Kaneko and Kaneaki Tsuzaki",

note = "Funding Information: This work was supported by Grants-in-aid for Scientific Research (A and Challenging Exploratory Research) ( 25249099 and 26630351 ) and by Japan Science and Technology Agency (JST) under Industry-Academia Collaborative R&D Program “Heterogeneous Structure Control: Towards Innovative Development of Metallic Structural Materials.” Publisher Copyright: {\textcopyright} 2015 Acta Materialia Inc. All rights reserved.",

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doi = "10.1016/j.scriptamat.2015.05.007",

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T1 - Positive and negative effects of hydrogen on tensile behavior in polycrystalline Fe-30Mn-(6 - X)Si-xAl austenitic alloys

AU - Yamada, Kensuke

AU - Koyama, Motomichi

AU - Kaneko, Takahiro

AU - Tsuzaki, Kaneaki

N1 - Funding Information: This work was supported by Grants-in-aid for Scientific Research (A and Challenging Exploratory Research) ( 25249099 and 26630351 ) and by Japan Science and Technology Agency (JST) under Industry-Academia Collaborative R&D Program “Heterogeneous Structure Control: Towards Innovative Development of Metallic Structural Materials.” Publisher Copyright: © 2015 Acta Materialia Inc. All rights reserved.

PY - 2015/8/1

Y1 - 2015/8/1

N2 - We investigated the tensile properties of Fe-30Mn-(6 - x)Si-xAl (in wt.%, x = 0, 2, 3, 6) austenitic alloys precharged with hydrogen gas at 10 MPa. The Fe-30Mn-6Al alloy showed hydrogen-improved elongation through enhancement of work hardening capacity in the plastic instability condition, although the other alloys did not. This improvement in elongation is considered to be a result of a reduction in stacking fault energy because deformation twinning appeared only in the hydrogen-precharged condition.

AB - We investigated the tensile properties of Fe-30Mn-(6 - x)Si-xAl (in wt.%, x = 0, 2, 3, 6) austenitic alloys precharged with hydrogen gas at 10 MPa. The Fe-30Mn-6Al alloy showed hydrogen-improved elongation through enhancement of work hardening capacity in the plastic instability condition, although the other alloys did not. This improvement in elongation is considered to be a result of a reduction in stacking fault energy because deformation twinning appeared only in the hydrogen-precharged condition.

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JO - Scripta Materialia

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Positive and negative effects of hydrogen on tensile behavior in polycrystalline Fe-30Mn-(6 - X)Si-xAl austenitic alloys

Abstract

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