Microstructural evolution resulting from different deformation mechanisms of a high-Nb-containing TiAl alloy with harmonic structure during elevated-temperature deformation

Yudong Chu; Jinshan Li; Lei Zhu; Yan Liu; Bin Tang; Hongchao Kou

doi:10.1016/j.matlet.2019.01.099

Microstructural evolution resulting from different deformation mechanisms of a high-Nb-containing TiAl alloy with harmonic structure during elevated-temperature deformation

Yudong Chu, Jinshan Li, Lei Zhu, Yan Liu, Bin Tang, Hongchao Kou

材料学院

Northwestern Polytechnical University Xian

科研成果: 期刊稿件 › 文章 › 同行评审

3 引用（Scopus）

摘要

A Ti-42.5Al-8Nb-0.2W-0.2B-0.1Y (at%) alloy with a harmonic structure was deformed via compression (temperature: 950 °C–1050 °C, strain rate: 10 ⁻² s ⁻¹ –10 ⁻⁴ s ⁻¹ ) and the resulting microstructure was characterized. The results revealed that at certain temperatures and strain rates the alloy undergoes compression deformation via intragranular deformation. However, with increasing temperatures and decreasing strain rates, this mechanism changed to grain boundary sliding (GBS) of β/B2 grains and γ grains in the enlarged shell area and the accommodated intragranular deformation of γ grains in the core area.

源语言	英语
页（从-至）	35-38
页数	4
期刊	Materials Letters
卷	242
DOI	https://doi.org/10.1016/j.matlet.2019.01.099
出版状态	已出版 - 1 5月 2019

访问文件

10.1016/j.matlet.2019.01.099

其它文件与链接

链接到 Scopus 的出版物

引用此

@article{79103274280f43ee8e326bbedd65ef31,

title = "Microstructural evolution resulting from different deformation mechanisms of a high-Nb-containing TiAl alloy with harmonic structure during elevated-temperature deformation",

abstract = " A Ti-42.5Al-8Nb-0.2W-0.2B-0.1Y (at%) alloy with a harmonic structure was deformed via compression (temperature: 950 °C–1050 °C, strain rate: 10 −2 s −1 –10 −4 s −1 ) and the resulting microstructure was characterized. The results revealed that at certain temperatures and strain rates the alloy undergoes compression deformation via intragranular deformation. However, with increasing temperatures and decreasing strain rates, this mechanism changed to grain boundary sliding (GBS) of β/B2 grains and γ grains in the enlarged shell area and the accommodated intragranular deformation of γ grains in the core area.",

keywords = "Harmonic structure, Isothermal compression, Microstructure, Recrystallization, Titanium aluminides",

author = "Yudong Chu and Jinshan Li and Lei Zhu and Yan Liu and Bin Tang and Hongchao Kou",

note = "Publisher Copyright: {\textcopyright} 2019 Elsevier B.V.",

year = "2019",

month = may,

day = "1",

doi = "10.1016/j.matlet.2019.01.099",

language = "英语",

volume = "242",

pages = "35--38",

journal = "Materials Letters",

issn = "0167-577X",

publisher = "Elsevier B.V.",

}

TY - JOUR

T1 - Microstructural evolution resulting from different deformation mechanisms of a high-Nb-containing TiAl alloy with harmonic structure during elevated-temperature deformation

AU - Chu, Yudong

AU - Li, Jinshan

AU - Zhu, Lei

AU - Liu, Yan

AU - Tang, Bin

AU - Kou, Hongchao

PY - 2019/5/1

Y1 - 2019/5/1

N2 - A Ti-42.5Al-8Nb-0.2W-0.2B-0.1Y (at%) alloy with a harmonic structure was deformed via compression (temperature: 950 °C–1050 °C, strain rate: 10 −2 s −1 –10 −4 s −1 ) and the resulting microstructure was characterized. The results revealed that at certain temperatures and strain rates the alloy undergoes compression deformation via intragranular deformation. However, with increasing temperatures and decreasing strain rates, this mechanism changed to grain boundary sliding (GBS) of β/B2 grains and γ grains in the enlarged shell area and the accommodated intragranular deformation of γ grains in the core area.

AB - A Ti-42.5Al-8Nb-0.2W-0.2B-0.1Y (at%) alloy with a harmonic structure was deformed via compression (temperature: 950 °C–1050 °C, strain rate: 10 −2 s −1 –10 −4 s −1 ) and the resulting microstructure was characterized. The results revealed that at certain temperatures and strain rates the alloy undergoes compression deformation via intragranular deformation. However, with increasing temperatures and decreasing strain rates, this mechanism changed to grain boundary sliding (GBS) of β/B2 grains and γ grains in the enlarged shell area and the accommodated intragranular deformation of γ grains in the core area.

KW - Harmonic structure

KW - Isothermal compression

KW - Microstructure

KW - Recrystallization

KW - Titanium aluminides

UR - http://www.scopus.com/inward/record.url?scp=85060844395&partnerID=8YFLogxK

U2 - 10.1016/j.matlet.2019.01.099

DO - 10.1016/j.matlet.2019.01.099

M3 - 文章

AN - SCOPUS:85060844395

SN - 0167-577X

VL - 242

SP - 35

EP - 38

JO - Materials Letters

JF - Materials Letters

ER -

Microstructural evolution resulting from different deformation mechanisms of a high-Nb-containing TiAl alloy with harmonic structure during elevated-temperature deformation

摘要

访问文件

其它文件与链接

指纹

引用此