Diffusion bonding of TiAl to Ni-based superalloy

Peng He; Haixin Li; Tiesong Lin; Yudong Huang; Yu Liu; Guotong Qian

Diffusion bonding of TiAl to Ni-based superalloy

Peng He
, Haixin Li
, Tiesong Lin^*
, Yudong Huang
, Yu Liu
, Guotong Qian

^*Corresponding author for this work

School of Materials Science and Engineering

Harbin Institute of Technology
School of Chemistry and Chemical Engineering, Harbin Institute of Technology
Shaoxing Tianlong Tin Materials Co. Ltd.

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

9 Scopus citations

Abstract

Diffusion bonding of TiAl to Ni-based alloy using Ti interlayer was studied. The microstructure of the joint and effect of bonding temperature on microstructure and properties of the joint were investigated, and the mechanism of the formation of reaction layers was also discussed. The experiment results show that the interfacial structure of the GH99/Ti/TiAl joint is GH99/(Ni, Cr) _ss/rich Ti-(Ni, Cr) _ss/TiNi/Ti ₂Ni/ α-Ti+Ti ₂Ni/Ti(Al) _ss/ TiAl+Ti ₃Al/TiAl. With the bonding temperature increasing, the thickness of reaction layers increases. The shear strength of the joint increases with the bonding temperature, and goes through a maximum at 1173 K/30 min/20 MPa and thereafter falls off. The maximum shear strength is 260.7 MPa.

Original language	English
Pages (from-to)	17-20
Number of pages	4
Journal	Hanjie Xuebao/Transactions of the China Welding Institution
Volume	33
Issue number	1
State	Published - Jan 2012

Keywords

Diffusion bonding
Interfacial structure
Ni-based superalloy
Titanium aluminium alloy

Cite this

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title = "Diffusion bonding of TiAl to Ni-based superalloy",

abstract = "Diffusion bonding of TiAl to Ni-based alloy using Ti interlayer was studied. The microstructure of the joint and effect of bonding temperature on microstructure and properties of the joint were investigated, and the mechanism of the formation of reaction layers was also discussed. The experiment results show that the interfacial structure of the GH99/Ti/TiAl joint is GH99/(Ni, Cr) ss/rich Ti-(Ni, Cr) ss/TiNi/Ti 2Ni/ α-Ti+Ti 2Ni/Ti(Al) ss/ TiAl+Ti 3Al/TiAl. With the bonding temperature increasing, the thickness of reaction layers increases. The shear strength of the joint increases with the bonding temperature, and goes through a maximum at 1173 K/30 min/20 MPa and thereafter falls off. The maximum shear strength is 260.7 MPa.",

keywords = "Diffusion bonding, Interfacial structure, Ni-based superalloy, Titanium aluminium alloy",

author = "Peng He and Haixin Li and Tiesong Lin and Yudong Huang and Yu Liu and Guotong Qian",

year = "2012",

month = jan,

language = "英语",

volume = "33",

pages = "17--20",

journal = "Hanjie Xuebao/Transactions of the China Welding Institution",

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TY - JOUR

T1 - Diffusion bonding of TiAl to Ni-based superalloy

AU - He, Peng

AU - Li, Haixin

AU - Lin, Tiesong

AU - Huang, Yudong

AU - Liu, Yu

AU - Qian, Guotong

PY - 2012/1

Y1 - 2012/1

N2 - Diffusion bonding of TiAl to Ni-based alloy using Ti interlayer was studied. The microstructure of the joint and effect of bonding temperature on microstructure and properties of the joint were investigated, and the mechanism of the formation of reaction layers was also discussed. The experiment results show that the interfacial structure of the GH99/Ti/TiAl joint is GH99/(Ni, Cr) ss/rich Ti-(Ni, Cr) ss/TiNi/Ti 2Ni/ α-Ti+Ti 2Ni/Ti(Al) ss/ TiAl+Ti 3Al/TiAl. With the bonding temperature increasing, the thickness of reaction layers increases. The shear strength of the joint increases with the bonding temperature, and goes through a maximum at 1173 K/30 min/20 MPa and thereafter falls off. The maximum shear strength is 260.7 MPa.

AB - Diffusion bonding of TiAl to Ni-based alloy using Ti interlayer was studied. The microstructure of the joint and effect of bonding temperature on microstructure and properties of the joint were investigated, and the mechanism of the formation of reaction layers was also discussed. The experiment results show that the interfacial structure of the GH99/Ti/TiAl joint is GH99/(Ni, Cr) ss/rich Ti-(Ni, Cr) ss/TiNi/Ti 2Ni/ α-Ti+Ti 2Ni/Ti(Al) ss/ TiAl+Ti 3Al/TiAl. With the bonding temperature increasing, the thickness of reaction layers increases. The shear strength of the joint increases with the bonding temperature, and goes through a maximum at 1173 K/30 min/20 MPa and thereafter falls off. The maximum shear strength is 260.7 MPa.

KW - Diffusion bonding

KW - Interfacial structure

KW - Ni-based superalloy

KW - Titanium aluminium alloy

UR - https://www.scopus.com/pages/publications/84863153281

M3 - 文章

AN - SCOPUS:84863153281

SN - 0253-360X

VL - 33

SP - 17

EP - 20

JO - Hanjie Xuebao/Transactions of the China Welding Institution

JF - Hanjie Xuebao/Transactions of the China Welding Institution

IS - 1

ER -

Diffusion bonding of TiAl to Ni-based superalloy

Abstract

Keywords

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