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

Research output: Contribution to journalArticle

11 Citations (Scopus)

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 languageEnglish
Pages (from-to)54-57
Number of pages4
JournalScripta Materialia
Volume105
DOIs
Publication statusPublished - Aug 1 2015

Fingerprint

Hydrogen
elongation
Elongation
hydrogen
stacking fault energy
work hardening
tensile properties
Twinning
Stacking faults
twinning
Tensile properties
Strain hardening
plastics
Gases
Plastics
augmentation
gases

All Science Journal Classification (ASJC) codes

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

Cite this

Positive and negative effects of hydrogen on tensile behavior in polycrystalline Fe-30Mn-(6 - X)Si-xAl austenitic alloys. / Yamada, Kensuke; Koyama, Motomichi; Kaneko, Takahiro; Tsuzaki, Kaneaki.

In: Scripta Materialia, Vol. 105, 01.08.2015, p. 54-57.

Research output: Contribution to journalArticle

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