Research on the interfacial structure and mechanical properties of TC4-SiO2 composite brazed joint

Junjie Zhang; Lixia Zhang; Junlei Qi; Dalei Zhang; Jicai Feng

Research on the interfacial structure and mechanical properties of TC4-SiO₂ composite brazed joint

Junjie Zhang
, Lixia Zhang^*
, Junlei Qi
, Dalei Zhang
, Jicai Feng

^*Corresponding author for this work

Harbin Institute of Technology

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

2 Scopus citations

Abstract

The TC4 alloy was brazed to SiO₂ composite using AgCu-4.5Ti filler alloy. The interfacial microstructure of joint was analysed and its formation mechanism was discussed. The influence of brazing temperature on the interfacial microstructure and the shear strength of joints was studied. The typical interfacial microstructure was SiO₂ composite/TiSi₂/Cu₄ Ti₃+Cu₃Ti₃O/Ag(s, s)+Cu(s, s)/TiCu/Ti₂Cu/α, β-Ti/TC4 alloy at brazing temperature 850°C, for 10 min. The increase of brazing temperature would increase the thickness of interfacial reaction layers near SiO₂ composite and TC4 alloy, and the AgCu eutectic microstructure would disappear at 870°C. The shear strength of joint also changes with the increase of temperature. The shear strength of the joints reaches a maximum of 7.8 MPa when the temperature is 850°C and the holding time 10 min.

Original language	English
Pages (from-to)	2598-2601
Number of pages	4
Journal	Xiyou Jinshu Cailiao Yu Gongcheng/Rare Metal Materials and Engineering
Volume	42
Issue number	12
State	Published - 2013

Keywords

Brazing
Interfacial microstructure
Shear strength
SiO composite
TC4

Cite this

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title = "Research on the interfacial structure and mechanical properties of TC4-SiO2 composite brazed joint",

abstract = "The TC4 alloy was brazed to SiO2 composite using AgCu-4.5Ti filler alloy. The interfacial microstructure of joint was analysed and its formation mechanism was discussed. The influence of brazing temperature on the interfacial microstructure and the shear strength of joints was studied. The typical interfacial microstructure was SiO2 composite/TiSi2/Cu4 Ti3+Cu3Ti3O/Ag(s, s)+Cu(s, s)/TiCu/Ti2Cu/α, β-Ti/TC4 alloy at brazing temperature 850°C, for 10 min. The increase of brazing temperature would increase the thickness of interfacial reaction layers near SiO2 composite and TC4 alloy, and the AgCu eutectic microstructure would disappear at 870°C. The shear strength of joint also changes with the increase of temperature. The shear strength of the joints reaches a maximum of 7.8 MPa when the temperature is 850°C and the holding time 10 min.",

keywords = "Brazing, Interfacial microstructure, Shear strength, SiO composite, TC4",

author = "Junjie Zhang and Lixia Zhang and Junlei Qi and Dalei Zhang and Jicai Feng",

year = "2013",

language = "英语",

volume = "42",

pages = "2598--2601",

journal = "Xiyou Jinshu Cailiao Yu Gongcheng/Rare Metal Materials and Engineering",

issn = "1002-185X",

publisher = "Science Press ",

number = "12",

}

TY - JOUR

T1 - Research on the interfacial structure and mechanical properties of TC4-SiO2 composite brazed joint

AU - Zhang, Junjie

AU - Zhang, Lixia

AU - Qi, Junlei

AU - Zhang, Dalei

AU - Feng, Jicai

PY - 2013

Y1 - 2013

N2 - The TC4 alloy was brazed to SiO2 composite using AgCu-4.5Ti filler alloy. The interfacial microstructure of joint was analysed and its formation mechanism was discussed. The influence of brazing temperature on the interfacial microstructure and the shear strength of joints was studied. The typical interfacial microstructure was SiO2 composite/TiSi2/Cu4 Ti3+Cu3Ti3O/Ag(s, s)+Cu(s, s)/TiCu/Ti2Cu/α, β-Ti/TC4 alloy at brazing temperature 850°C, for 10 min. The increase of brazing temperature would increase the thickness of interfacial reaction layers near SiO2 composite and TC4 alloy, and the AgCu eutectic microstructure would disappear at 870°C. The shear strength of joint also changes with the increase of temperature. The shear strength of the joints reaches a maximum of 7.8 MPa when the temperature is 850°C and the holding time 10 min.

AB - The TC4 alloy was brazed to SiO2 composite using AgCu-4.5Ti filler alloy. The interfacial microstructure of joint was analysed and its formation mechanism was discussed. The influence of brazing temperature on the interfacial microstructure and the shear strength of joints was studied. The typical interfacial microstructure was SiO2 composite/TiSi2/Cu4 Ti3+Cu3Ti3O/Ag(s, s)+Cu(s, s)/TiCu/Ti2Cu/α, β-Ti/TC4 alloy at brazing temperature 850°C, for 10 min. The increase of brazing temperature would increase the thickness of interfacial reaction layers near SiO2 composite and TC4 alloy, and the AgCu eutectic microstructure would disappear at 870°C. The shear strength of joint also changes with the increase of temperature. The shear strength of the joints reaches a maximum of 7.8 MPa when the temperature is 850°C and the holding time 10 min.

KW - Brazing

KW - Interfacial microstructure

KW - Shear strength

KW - SiO composite

KW - TC4

UR - https://www.scopus.com/pages/publications/84892555934

M3 - 文章

AN - SCOPUS:84892555934

SN - 1002-185X

VL - 42

SP - 2598

EP - 2601

JO - Xiyou Jinshu Cailiao Yu Gongcheng/Rare Metal Materials and Engineering

JF - Xiyou Jinshu Cailiao Yu Gongcheng/Rare Metal Materials and Engineering

IS - 12

ER -

Research on the interfacial structure and mechanical properties of TC4-SiO₂ composite brazed joint

Abstract

Keywords

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