Influence of surface plastic deformation on the microstructure evolution of diffusion bonding interface of high Nb containing TiAl alloy

Xian Sheng Qi; Xiang Yi Xue; Wei Chen; Bin Tang; Hong Chao Kou; Jin Shan Li

doi:10.3969/j.issn.1007-2012.2014.04.005

Influence of surface plastic deformation on the microstructure evolution of diffusion bonding interface of high Nb containing TiAl alloy

Xian Sheng Qi, Xiang Yi Xue, Wei Chen, Bin Tang, Hong Chao Kou, Jin Shan Li

School of Materials Sience and Engineering

Northwestern Polytechnical University Xian

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

2 Scopus citations

Abstract

The surface plastic deformation was applied to high Nb containing TiAl alloy by means of shot peening, and the influence of the surface plastic deformation on the microstructure evolution of the diffusion bonding interface of high Nb containing TiAl alloy was studied. The results indicated that continuous α₂ phase formed in the bonding interface with surface plastic deformation, and the fraction of α₂ phase increased with the increasing deformation degree. Furthermore, the surface plastic deformation promotes the recrystallization in the subsequent annealing. The growth of the recrystallized grain reduced the fraction of α₂ phase when the plastic deformation is large enough, and the α₂ phase disappeared at last. Thus, the combined surface plastic deformation with recrystallization annealing improved the bonding quality of high Nb containing TiAl alloy.

Original language	English
Pages (from-to)	23-27
Number of pages	5
Journal	Suxing Gongcheng Xuebao/Journal of Plasticity Engineering
Volume	21
Issue number	4
DOIs	https://doi.org/10.3969/j.issn.1007-2012.2014.04.005
State	Published - 28 Aug 2014

Keywords

Diffusion bonding
High Nb containing TiAl alloy
Recrystallization annealing
Surface plastic deformation

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10.3969/j.issn.1007-2012.2014.04.005

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title = "Influence of surface plastic deformation on the microstructure evolution of diffusion bonding interface of high Nb containing TiAl alloy",

abstract = "The surface plastic deformation was applied to high Nb containing TiAl alloy by means of shot peening, and the influence of the surface plastic deformation on the microstructure evolution of the diffusion bonding interface of high Nb containing TiAl alloy was studied. The results indicated that continuous α2 phase formed in the bonding interface with surface plastic deformation, and the fraction of α2 phase increased with the increasing deformation degree. Furthermore, the surface plastic deformation promotes the recrystallization in the subsequent annealing. The growth of the recrystallized grain reduced the fraction of α2 phase when the plastic deformation is large enough, and the α2 phase disappeared at last. Thus, the combined surface plastic deformation with recrystallization annealing improved the bonding quality of high Nb containing TiAl alloy.",

keywords = "Diffusion bonding, High Nb containing TiAl alloy, Recrystallization annealing, Surface plastic deformation",

author = "Qi, {Xian Sheng} and Xue, {Xiang Yi} and Wei Chen and Bin Tang and Kou, {Hong Chao} and Li, {Jin Shan}",

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doi = "10.3969/j.issn.1007-2012.2014.04.005",

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pages = "23--27",

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TY - JOUR

T1 - Influence of surface plastic deformation on the microstructure evolution of diffusion bonding interface of high Nb containing TiAl alloy

AU - Qi, Xian Sheng

AU - Xue, Xiang Yi

AU - Chen, Wei

AU - Tang, Bin

AU - Kou, Hong Chao

AU - Li, Jin Shan

PY - 2014/8/28

Y1 - 2014/8/28

N2 - The surface plastic deformation was applied to high Nb containing TiAl alloy by means of shot peening, and the influence of the surface plastic deformation on the microstructure evolution of the diffusion bonding interface of high Nb containing TiAl alloy was studied. The results indicated that continuous α2 phase formed in the bonding interface with surface plastic deformation, and the fraction of α2 phase increased with the increasing deformation degree. Furthermore, the surface plastic deformation promotes the recrystallization in the subsequent annealing. The growth of the recrystallized grain reduced the fraction of α2 phase when the plastic deformation is large enough, and the α2 phase disappeared at last. Thus, the combined surface plastic deformation with recrystallization annealing improved the bonding quality of high Nb containing TiAl alloy.

AB - The surface plastic deformation was applied to high Nb containing TiAl alloy by means of shot peening, and the influence of the surface plastic deformation on the microstructure evolution of the diffusion bonding interface of high Nb containing TiAl alloy was studied. The results indicated that continuous α2 phase formed in the bonding interface with surface plastic deformation, and the fraction of α2 phase increased with the increasing deformation degree. Furthermore, the surface plastic deformation promotes the recrystallization in the subsequent annealing. The growth of the recrystallized grain reduced the fraction of α2 phase when the plastic deformation is large enough, and the α2 phase disappeared at last. Thus, the combined surface plastic deformation with recrystallization annealing improved the bonding quality of high Nb containing TiAl alloy.

KW - Diffusion bonding

KW - High Nb containing TiAl alloy

KW - Recrystallization annealing

KW - Surface plastic deformation

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U2 - 10.3969/j.issn.1007-2012.2014.04.005

DO - 10.3969/j.issn.1007-2012.2014.04.005

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SN - 1007-2012

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JO - Suxing Gongcheng Xuebao/Journal of Plasticity Engineering

JF - Suxing Gongcheng Xuebao/Journal of Plasticity Engineering

IS - 4

ER -

Influence of surface plastic deformation on the microstructure evolution of diffusion bonding interface of high Nb containing TiAl alloy

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Keywords

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