Microstructure and strength of brazed joints of TiB2 cermet to TiAl-based alloys

Zhuoran Li; Jicai Feng; Jian Cao

Microstructure and strength of brazed joints of TiB₂ cermet to TiAl-based alloys

Zhuoran Li^*
, Jicai Feng
, Jian Cao

^*Corresponding author for this work

School of Materials Science and Engineering

Harbin Institute of Technology

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

3 Scopus citations

Abstract

In this study, TiB₂ cermet and TiAl-based alloy are vacuum brazed successfully by using Ag-Cu-Ti filler metal. The microstructural analyses indicate that two reaction products, Ti(Cu, Al)₂ and Ag based solid solution (Ag(s.s)), arc present in the brazing seam, and the interface structure of the brazed joint is TiB₂/TiB₂+Ag(s.s)/Ag(s.s) + Ti(Cu,Al)₂/Ti(Cu,Al) ₂/TiAl. The experimental results show that the shear strength of the brazed TiB₂/TiAl joints decreases as the brazing time increases at a definite brazing temperature. When the joint is brazed at 1223 for 5 min, a joint strength up to 173 MPa is achieved.

Original language	English
Pages (from-to)	17-19
Number of pages	3
Journal	China Welding (English Edition)
Volume	12
Issue number	1
State	Published - May 2003

Keywords

Interface structure
Strength
TiAl
TiB cermet
Vacuum brazing

Cite this

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title = "Microstructure and strength of brazed joints of TiB2 cermet to TiAl-based alloys",

abstract = "In this study, TiB2 cermet and TiAl-based alloy are vacuum brazed successfully by using Ag-Cu-Ti filler metal. The microstructural analyses indicate that two reaction products, Ti(Cu, Al)2 and Ag based solid solution (Ag(s.s)), arc present in the brazing seam, and the interface structure of the brazed joint is TiB2/TiB2+Ag(s.s)/Ag(s.s) + Ti(Cu,Al)2/Ti(Cu,Al) 2/TiAl. The experimental results show that the shear strength of the brazed TiB2/TiAl joints decreases as the brazing time increases at a definite brazing temperature. When the joint is brazed at 1223 for 5 min, a joint strength up to 173 MPa is achieved.",

keywords = "Interface structure, Strength, TiAl, TiB cermet, Vacuum brazing",

author = "Zhuoran Li and Jicai Feng and Jian Cao",

year = "2003",

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language = "英语",

volume = "12",

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journal = "China Welding (English Edition)",

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TY - JOUR

T1 - Microstructure and strength of brazed joints of TiB2 cermet to TiAl-based alloys

AU - Li, Zhuoran

AU - Feng, Jicai

AU - Cao, Jian

PY - 2003/5

Y1 - 2003/5

N2 - In this study, TiB2 cermet and TiAl-based alloy are vacuum brazed successfully by using Ag-Cu-Ti filler metal. The microstructural analyses indicate that two reaction products, Ti(Cu, Al)2 and Ag based solid solution (Ag(s.s)), arc present in the brazing seam, and the interface structure of the brazed joint is TiB2/TiB2+Ag(s.s)/Ag(s.s) + Ti(Cu,Al)2/Ti(Cu,Al) 2/TiAl. The experimental results show that the shear strength of the brazed TiB2/TiAl joints decreases as the brazing time increases at a definite brazing temperature. When the joint is brazed at 1223 for 5 min, a joint strength up to 173 MPa is achieved.

AB - In this study, TiB2 cermet and TiAl-based alloy are vacuum brazed successfully by using Ag-Cu-Ti filler metal. The microstructural analyses indicate that two reaction products, Ti(Cu, Al)2 and Ag based solid solution (Ag(s.s)), arc present in the brazing seam, and the interface structure of the brazed joint is TiB2/TiB2+Ag(s.s)/Ag(s.s) + Ti(Cu,Al)2/Ti(Cu,Al) 2/TiAl. The experimental results show that the shear strength of the brazed TiB2/TiAl joints decreases as the brazing time increases at a definite brazing temperature. When the joint is brazed at 1223 for 5 min, a joint strength up to 173 MPa is achieved.

KW - Interface structure

KW - Strength

KW - TiAl

KW - TiB cermet

KW - Vacuum brazing

UR - https://www.scopus.com/pages/publications/0141732183

M3 - 文章

AN - SCOPUS:0141732183

SN - 1004-5341

VL - 12

SP - 17

EP - 19

JO - China Welding (English Edition)

JF - China Welding (English Edition)

IS - 1

ER -

Microstructure and strength of brazed joints of TiB₂ cermet to TiAl-based alloys

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Keywords

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