Effects of hydrogen on softening mechanism of Ti-45Al-5Nb- 0.8Mo-0.3Y alloy deformed at high temperatures

Yingying Zong; Daosheng Wen; Wenchen Xu; Danmei Yang; Debin Shan; Zuyan Liu

doi:10.1016/j.proeng.2014.10.167

Effects of hydrogen on softening mechanism of Ti-45Al-5Nb- 0.8Mo-0.3Y alloy deformed at high temperatures

Yingying Zong
, Daosheng Wen
, Wenchen Xu
, Danmei Yang
, Debin Shan^*
, Zuyan Liu

^*Corresponding author for this work

Harbin Institute of Technology

Research output: Contribution to journal › Conference article › peer-review

6 Scopus citations

Abstract

The softening mechanism of unhydrogenated Ti-45Al-5Nb-0.8Mo-0.3Y alloy and Ti-45Al-5Nb-0.8Mo-0.3Y alloy with 1.5 at.% hydrogen addition was investigated in the temperature range between 1000 and 1200 °C and the strain rates of 0.01 and 0.1 s^-1, carried out on the Gleeble-1500D thermomechanical simulation system. The results showed that the flow stress of the hydrogenated alloy was lower than that of the unhydrogenated alloy. As deformed at 1200 °C and strain rate of 0.01s^-1, the peak stress of the hydrogenated alloy was decreased by 25.31% compared with that of the unhydrogenated alloy. The softening of the hydrogenated alloy was principally attributed to hydrogen-induced dynamic recrystallization and hydrogen-increased B2 phase .

Original language	English
Pages (from-to)	1420-1426
Number of pages	7
Journal	Procedia Engineering
Volume	81
DOIs	https://doi.org/10.1016/j.proeng.2014.10.167
State	Published - 2014
Externally published	Yes
Event	11th International Conference on Technology of Plasticity, ICTP 2014 - Nagoya, Japan Duration: 19 Oct 2014 → 24 Oct 2014

Keywords

Dynamic recrystallization
Hydrogen
Softening
TiAl-based alloy

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10.1016/j.proeng.2014.10.167

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@article{cad8331ce1ed4ebbb564624c23ee7741,

title = "Effects of hydrogen on softening mechanism of Ti-45Al-5Nb- 0.8Mo-0.3Y alloy deformed at high temperatures",

abstract = "The softening mechanism of unhydrogenated Ti-45Al-5Nb-0.8Mo-0.3Y alloy and Ti-45Al-5Nb-0.8Mo-0.3Y alloy with 1.5 at.\% hydrogen addition was investigated in the temperature range between 1000 and 1200 °C and the strain rates of 0.01 and 0.1 s-1, carried out on the Gleeble-1500D thermomechanical simulation system. The results showed that the flow stress of the hydrogenated alloy was lower than that of the unhydrogenated alloy. As deformed at 1200 °C and strain rate of 0.01s-1, the peak stress of the hydrogenated alloy was decreased by 25.31\% compared with that of the unhydrogenated alloy. The softening of the hydrogenated alloy was principally attributed to hydrogen-induced dynamic recrystallization and hydrogen-increased B2 phase .",

keywords = "Dynamic recrystallization, Hydrogen, Softening, TiAl-based alloy",

author = "Yingying Zong and Daosheng Wen and Wenchen Xu and Danmei Yang and Debin Shan and Zuyan Liu",

note = "Publisher Copyright: {\textcopyright} 2014 The Authors. Published by Elsevier Ltd.; 11th International Conference on Technology of Plasticity, ICTP 2014 ; Conference date: 19-10-2014 Through 24-10-2014",

year = "2014",

doi = "10.1016/j.proeng.2014.10.167",

language = "英语",

volume = "81",

pages = "1420--1426",

journal = "Procedia Engineering",

issn = "1877-7058",

publisher = "Elsevier Ltd",

}

TY - JOUR

T1 - Effects of hydrogen on softening mechanism of Ti-45Al-5Nb- 0.8Mo-0.3Y alloy deformed at high temperatures

AU - Zong, Yingying

AU - Wen, Daosheng

AU - Xu, Wenchen

AU - Yang, Danmei

AU - Shan, Debin

AU - Liu, Zuyan

PY - 2014

Y1 - 2014

N2 - The softening mechanism of unhydrogenated Ti-45Al-5Nb-0.8Mo-0.3Y alloy and Ti-45Al-5Nb-0.8Mo-0.3Y alloy with 1.5 at.% hydrogen addition was investigated in the temperature range between 1000 and 1200 °C and the strain rates of 0.01 and 0.1 s-1, carried out on the Gleeble-1500D thermomechanical simulation system. The results showed that the flow stress of the hydrogenated alloy was lower than that of the unhydrogenated alloy. As deformed at 1200 °C and strain rate of 0.01s-1, the peak stress of the hydrogenated alloy was decreased by 25.31% compared with that of the unhydrogenated alloy. The softening of the hydrogenated alloy was principally attributed to hydrogen-induced dynamic recrystallization and hydrogen-increased B2 phase .

AB - The softening mechanism of unhydrogenated Ti-45Al-5Nb-0.8Mo-0.3Y alloy and Ti-45Al-5Nb-0.8Mo-0.3Y alloy with 1.5 at.% hydrogen addition was investigated in the temperature range between 1000 and 1200 °C and the strain rates of 0.01 and 0.1 s-1, carried out on the Gleeble-1500D thermomechanical simulation system. The results showed that the flow stress of the hydrogenated alloy was lower than that of the unhydrogenated alloy. As deformed at 1200 °C and strain rate of 0.01s-1, the peak stress of the hydrogenated alloy was decreased by 25.31% compared with that of the unhydrogenated alloy. The softening of the hydrogenated alloy was principally attributed to hydrogen-induced dynamic recrystallization and hydrogen-increased B2 phase .

KW - Dynamic recrystallization

KW - Hydrogen

KW - Softening

KW - TiAl-based alloy

UR - https://www.scopus.com/pages/publications/84949134366

U2 - 10.1016/j.proeng.2014.10.167

DO - 10.1016/j.proeng.2014.10.167

M3 - 会议文章

AN - SCOPUS:84949134366

SN - 1877-7058

VL - 81

SP - 1420

EP - 1426

JO - Procedia Engineering

JF - Procedia Engineering

T2 - 11th International Conference on Technology of Plasticity, ICTP 2014

Y2 - 19 October 2014 through 24 October 2014

ER -

Effects of hydrogen on softening mechanism of Ti-45Al-5Nb- 0.8Mo-0.3Y alloy deformed at high temperatures

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Keywords

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