Hydrogen enhanced the room-temperature compressive properties of Ti44Al6Nb alloy

T. F. Ma; R. R. Chen; D. S. Zheng; J. J. Guo; H. S. Ding; Y. Q. Su; H. Z. Fu

doi:10.1016/j.matlet.2017.11.022

Hydrogen enhanced the room-temperature compressive properties of Ti44Al6Nb alloy

T. F. Ma
, R. R. Chen^*
, D. S. Zheng
, J. J. Guo
, H. S. Ding
, Y. Q. Su
, H. Z. Fu

^*Corresponding author for this work

Harbin Institute of Technology

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

16 Scopus citations

Abstract

The effect of hydrogen content on room temperature compressive properties of Ti44Al6Nb (at.%) alloy was studied. The results show that hydrogen promotes a solid solution strengthening in TiAl alloys, the microhardness increases with increasing of hydrogen content, which is increased by 40% after hydrogenation with 1.22 at.% H. As hydrogen content increases, the ultimate compressive strength and fracture strain increases firstly and then decreases. The Ti44Al6Nb alloy exhibits higher compressive strength and plasticity after addition of 0.42 at.% H, which is enhanced by 10% and 31% respectively. The distinct effect of hydrogen on the mechanical properties of TiAl alloys is attributed to the hydrogen-promoted dislocation motion and hydrogen-induced solution strengthening.

Original language	English
Pages (from-to)	170-173
Number of pages	4
Journal	Materials Letters
Volume	213
DOIs	https://doi.org/10.1016/j.matlet.2017.11.022
State	Published - 15 Feb 2018
Externally published	Yes

Keywords

Compressive property
Hydrogen
Intermetallic alloys and compounds
Microstructure

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10.1016/j.matlet.2017.11.022

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title = "Hydrogen enhanced the room-temperature compressive properties of Ti44Al6Nb alloy",

abstract = "The effect of hydrogen content on room temperature compressive properties of Ti44Al6Nb (at.\%) alloy was studied. The results show that hydrogen promotes a solid solution strengthening in TiAl alloys, the microhardness increases with increasing of hydrogen content, which is increased by 40\% after hydrogenation with 1.22 at.\% H. As hydrogen content increases, the ultimate compressive strength and fracture strain increases firstly and then decreases. The Ti44Al6Nb alloy exhibits higher compressive strength and plasticity after addition of 0.42 at.\% H, which is enhanced by 10\% and 31\% respectively. The distinct effect of hydrogen on the mechanical properties of TiAl alloys is attributed to the hydrogen-promoted dislocation motion and hydrogen-induced solution strengthening.",

keywords = "Compressive property, Hydrogen, Intermetallic alloys and compounds, Microstructure",

author = "Ma, \{T. F.\} and Chen, \{R. R.\} and Zheng, \{D. S.\} and Guo, \{J. J.\} and Ding, \{H. S.\} and Su, \{Y. Q.\} and Fu, \{H. Z.\}",

note = "Publisher Copyright: {\textcopyright} 2017 Elsevier B.V.",

year = "2018",

month = feb,

day = "15",

doi = "10.1016/j.matlet.2017.11.022",

language = "英语",

volume = "213",

pages = "170--173",

journal = "Materials Letters",

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}

TY - JOUR

T1 - Hydrogen enhanced the room-temperature compressive properties of Ti44Al6Nb alloy

AU - Ma, T. F.

AU - Chen, R. R.

AU - Zheng, D. S.

AU - Guo, J. J.

AU - Ding, H. S.

AU - Su, Y. Q.

AU - Fu, H. Z.

PY - 2018/2/15

Y1 - 2018/2/15

N2 - The effect of hydrogen content on room temperature compressive properties of Ti44Al6Nb (at.%) alloy was studied. The results show that hydrogen promotes a solid solution strengthening in TiAl alloys, the microhardness increases with increasing of hydrogen content, which is increased by 40% after hydrogenation with 1.22 at.% H. As hydrogen content increases, the ultimate compressive strength and fracture strain increases firstly and then decreases. The Ti44Al6Nb alloy exhibits higher compressive strength and plasticity after addition of 0.42 at.% H, which is enhanced by 10% and 31% respectively. The distinct effect of hydrogen on the mechanical properties of TiAl alloys is attributed to the hydrogen-promoted dislocation motion and hydrogen-induced solution strengthening.

AB - The effect of hydrogen content on room temperature compressive properties of Ti44Al6Nb (at.%) alloy was studied. The results show that hydrogen promotes a solid solution strengthening in TiAl alloys, the microhardness increases with increasing of hydrogen content, which is increased by 40% after hydrogenation with 1.22 at.% H. As hydrogen content increases, the ultimate compressive strength and fracture strain increases firstly and then decreases. The Ti44Al6Nb alloy exhibits higher compressive strength and plasticity after addition of 0.42 at.% H, which is enhanced by 10% and 31% respectively. The distinct effect of hydrogen on the mechanical properties of TiAl alloys is attributed to the hydrogen-promoted dislocation motion and hydrogen-induced solution strengthening.

KW - Compressive property

KW - Hydrogen

KW - Intermetallic alloys and compounds

KW - Microstructure

UR - https://www.scopus.com/pages/publications/85034443758

U2 - 10.1016/j.matlet.2017.11.022

DO - 10.1016/j.matlet.2017.11.022

M3 - 文章

AN - SCOPUS:85034443758

SN - 0167-577X

VL - 213

SP - 170

EP - 173

JO - Materials Letters

JF - Materials Letters

ER -

Hydrogen enhanced the room-temperature compressive properties of Ti44Al6Nb alloy

Abstract

Keywords

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