Investigations of hydrogen-promoted α2-lamella decomposition of a γ-TiAl based alloy

Y. Y. Zong; D. S. Wen; B. Guo; D. B. Shan

doi:10.1016/j.matlet.2015.03.079

Investigations of hydrogen-promoted α₂-lamella decomposition of a γ-TiAl based alloy

Y. Y. Zong
, D. S. Wen
, B. Guo
, D. B. Shan^*

^*Corresponding author for this work

School of Materials Science and Engineering

Harbin Institute of Technology

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

18 Scopus citations

Abstract

The effect of hydrogen on α₂-lamella decomposition of a Ti-46Al-2V-1Cr-0.3Ni alloy (at%) was investigated. The extent of α₂-lamella decomposition was enhanced due to hydrogen addition, which was partly attributed to hydrogen-promoted α₂→B2 phase transformation and α₂-phase lamellae coarsening. When the deformation temperature rose to 1473 K, hydrogen-promoted γ-phase twinning and α₂-phase dislocation movement played a positive role in α₂-lamella decomposition.

Original language	English
Pages (from-to)	196-199
Number of pages	4
Journal	Materials Letters
Volume	152
DOIs	https://doi.org/10.1016/j.matlet.2015.03.079
State	Published - 1 Aug 2015

Keywords

Diffusion
Hydrogen
Lamellar decomposition
Phase transformation
Twinning

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@article{53f0dccf34ab4fc792b809c2b8268802,

title = "Investigations of hydrogen-promoted α2-lamella decomposition of a γ-TiAl based alloy",

abstract = "The effect of hydrogen on α2-lamella decomposition of a Ti-46Al-2V-1Cr-0.3Ni alloy (at\%) was investigated. The extent of α2-lamella decomposition was enhanced due to hydrogen addition, which was partly attributed to hydrogen-promoted α2→B2 phase transformation and α2-phase lamellae coarsening. When the deformation temperature rose to 1473 K, hydrogen-promoted γ-phase twinning and α2-phase dislocation movement played a positive role in α2-lamella decomposition.",

keywords = "Diffusion, Hydrogen, Lamellar decomposition, Phase transformation, Twinning",

author = "Zong, \{Y. Y.\} and Wen, \{D. S.\} and B. Guo and Shan, \{D. B.\}",

year = "2015",

month = aug,

day = "1",

doi = "10.1016/j.matlet.2015.03.079",

language = "英语",

volume = "152",

pages = "196--199",

journal = "Materials Letters",

issn = "0167-577X",

publisher = "Elsevier B.V.",

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TY - JOUR

T1 - Investigations of hydrogen-promoted α2-lamella decomposition of a γ-TiAl based alloy

AU - Zong, Y. Y.

AU - Wen, D. S.

AU - Guo, B.

AU - Shan, D. B.

PY - 2015/8/1

Y1 - 2015/8/1

N2 - The effect of hydrogen on α2-lamella decomposition of a Ti-46Al-2V-1Cr-0.3Ni alloy (at%) was investigated. The extent of α2-lamella decomposition was enhanced due to hydrogen addition, which was partly attributed to hydrogen-promoted α2→B2 phase transformation and α2-phase lamellae coarsening. When the deformation temperature rose to 1473 K, hydrogen-promoted γ-phase twinning and α2-phase dislocation movement played a positive role in α2-lamella decomposition.

AB - The effect of hydrogen on α2-lamella decomposition of a Ti-46Al-2V-1Cr-0.3Ni alloy (at%) was investigated. The extent of α2-lamella decomposition was enhanced due to hydrogen addition, which was partly attributed to hydrogen-promoted α2→B2 phase transformation and α2-phase lamellae coarsening. When the deformation temperature rose to 1473 K, hydrogen-promoted γ-phase twinning and α2-phase dislocation movement played a positive role in α2-lamella decomposition.

KW - Diffusion

KW - Hydrogen

KW - Lamellar decomposition

KW - Phase transformation

KW - Twinning

UR - https://www.scopus.com/pages/publications/84927169422

U2 - 10.1016/j.matlet.2015.03.079

DO - 10.1016/j.matlet.2015.03.079

M3 - 文章

AN - SCOPUS:84927169422

SN - 0167-577X

VL - 152

SP - 196

EP - 199

JO - Materials Letters

JF - Materials Letters

ER -

Investigations of hydrogen-promoted α₂-lamella decomposition of a γ-TiAl based alloy

Abstract

Keywords

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