Hot press bonding of γ-TiAl and TC17 at a low bonding temperature by imposing plastic deformation and post heating

Hong Li; Chao Yang; Lixing Sun; Miaoquan Li

doi:10.1016/j.matlet.2016.10.057

Hot press bonding of γ-TiAl and TC17 at a low bonding temperature by imposing plastic deformation and post heating

Hong Li, Chao Yang, Lixing Sun, Miaoquan Li

School of Materials Sience and Engineering

Northwestern Polytechnical University Xian

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

25 Scopus citations

Abstract

The hot press bonding of γ-TiAl alloy and TC17 alloy was successfully conducted at a low bonding temperature of 850 °C by imposing plastic deformation of TC17 alloy and post heating at 840 °C for 60 min. The results indicate that the effect of plastic deformation and heating on the microstructure and microhardness of diffusion zone is very significant while this effect on base alloys can be ignored. The increasing plastic deformation of TC17 alloy and heating promote the shrinking of voids and the increasing of the width of diffusion zone because of the enhancing atom diffusion. A sound metallurgical bond with the microhardness in a narrow range of 314–345 HV is obtained by imposing a percentage of TC17 deformation of 50% and post heating.

Original language	English
Pages (from-to)	4-6
Number of pages	3
Journal	Materials Letters
Volume	187
DOIs	https://doi.org/10.1016/j.matlet.2016.10.057
State	Published - 15 Jan 2017

Keywords

Diffusion zone
Microhardness
Microstructure
Plastic deformation
Press bonding
γ-TiAl

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10.1016/j.matlet.2016.10.057

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title = "Hot press bonding of γ-TiAl and TC17 at a low bonding temperature by imposing plastic deformation and post heating",

abstract = "The hot press bonding of γ-TiAl alloy and TC17 alloy was successfully conducted at a low bonding temperature of 850 °C by imposing plastic deformation of TC17 alloy and post heating at 840 °C for 60 min. The results indicate that the effect of plastic deformation and heating on the microstructure and microhardness of diffusion zone is very significant while this effect on base alloys can be ignored. The increasing plastic deformation of TC17 alloy and heating promote the shrinking of voids and the increasing of the width of diffusion zone because of the enhancing atom diffusion. A sound metallurgical bond with the microhardness in a narrow range of 314–345 HV is obtained by imposing a percentage of TC17 deformation of 50% and post heating.",

keywords = "Diffusion zone, Microhardness, Microstructure, Plastic deformation, Press bonding, γ-TiAl",

author = "Hong Li and Chao Yang and Lixing Sun and Miaoquan Li",

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doi = "10.1016/j.matlet.2016.10.057",

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T1 - Hot press bonding of γ-TiAl and TC17 at a low bonding temperature by imposing plastic deformation and post heating

AU - Li, Hong

AU - Yang, Chao

AU - Sun, Lixing

AU - Li, Miaoquan

PY - 2017/1/15

Y1 - 2017/1/15

N2 - The hot press bonding of γ-TiAl alloy and TC17 alloy was successfully conducted at a low bonding temperature of 850 °C by imposing plastic deformation of TC17 alloy and post heating at 840 °C for 60 min. The results indicate that the effect of plastic deformation and heating on the microstructure and microhardness of diffusion zone is very significant while this effect on base alloys can be ignored. The increasing plastic deformation of TC17 alloy and heating promote the shrinking of voids and the increasing of the width of diffusion zone because of the enhancing atom diffusion. A sound metallurgical bond with the microhardness in a narrow range of 314–345 HV is obtained by imposing a percentage of TC17 deformation of 50% and post heating.

AB - The hot press bonding of γ-TiAl alloy and TC17 alloy was successfully conducted at a low bonding temperature of 850 °C by imposing plastic deformation of TC17 alloy and post heating at 840 °C for 60 min. The results indicate that the effect of plastic deformation and heating on the microstructure and microhardness of diffusion zone is very significant while this effect on base alloys can be ignored. The increasing plastic deformation of TC17 alloy and heating promote the shrinking of voids and the increasing of the width of diffusion zone because of the enhancing atom diffusion. A sound metallurgical bond with the microhardness in a narrow range of 314–345 HV is obtained by imposing a percentage of TC17 deformation of 50% and post heating.

KW - Diffusion zone

KW - Microhardness

KW - Microstructure

KW - Plastic deformation

KW - Press bonding

KW - γ-TiAl

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DO - 10.1016/j.matlet.2016.10.057

M3 - 文章

AN - SCOPUS:84993928865

SN - 0167-577X

VL - 187

SP - 4

EP - 6

JO - Materials Letters

JF - Materials Letters

ER -

Hot press bonding of γ-TiAl and TC17 at a low bonding temperature by imposing plastic deformation and post heating

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Keywords

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