Effect of Cu+B composite fillers proportion on Al 2O 3/TC4 alloy joint microstructure

Minxuan Yang; Tiesong Lin; Chun Han; Peng He; Hongmei Wei

Effect of Cu+B composite fillers proportion on Al ₂O ₃/TC4 alloy joint microstructure

Minxuan Yang
, Tiesong Lin
, Chun Han
, Peng He^*
, Hongmei Wei

^*Corresponding author for this work

School of Materials Science and Engineering

Harbin Institute of Technology
Harbin Institute of Technology

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

Abstract

The composite fillers with different proportions of Cu and B powders were used to braze Al ₂O ₃ to TC4 alloy at 930°C for 10 min. The joining and microstructure of Al ₂O ₃/TC4 alloy joints were observed and analyzed by SEM and EDS. The results show that Al ₂O ₃/TC4 alloy joint interfacial microstructure is Al ₂O ₃/Ti ₃(Cu, Al) ₃O/Ti ₂Cu+Ti ₂(Cu, Al)/ Ti+Ti ₂(Cu, Al)+Ti(Cu, Al)+AlCu ₂Ti+Ti ₂Cu/Ti ₂Cu+ AlCu ₂Ti+TiB/Ti+Ti ₂Cu/TC4 alloy. Mutual diffusion of Cu atoms from composite filler and Ti atoms from TC4 alloy occurs during brazing process. Cu-Ti compounds with different components were formed in Al ₂O ₃/TC4 alloy joints. B reacts with Ti atoms in liquid, and in situ synthesizes TiB whiskers in joint, which mainly distribute into Ti ₂Cu and AlCu ₂Ti. With the increasing of TiB content, Ti ₂(Cu, Al) content increases, and becomes continuous gradually. At the same time, that moves to Al ₂O ₃ side.

Original language	English
Pages (from-to)	33-36+40
Journal	Hanjie Xuebao/Transactions of the China Welding Institution
Volume	33
Issue number	7
State	Published - Jul 2012

Keywords

Al O ceramic
Brazing
Microstructure
TC4 alloy

Cite this

@article{b4a8929f487645b286fcfce373bea174,

title = "Effect of Cu+B composite fillers proportion on Al 2O 3/TC4 alloy joint microstructure",

abstract = "The composite fillers with different proportions of Cu and B powders were used to braze Al 2O 3 to TC4 alloy at 930°C for 10 min. The joining and microstructure of Al 2O 3/TC4 alloy joints were observed and analyzed by SEM and EDS. The results show that Al 2O 3/TC4 alloy joint interfacial microstructure is Al 2O 3/Ti 3(Cu, Al) 3O/Ti 2Cu+Ti 2(Cu, Al)/ Ti+Ti 2(Cu, Al)+Ti(Cu, Al)+AlCu 2Ti+Ti 2Cu/Ti 2Cu+ AlCu 2Ti+TiB/Ti+Ti 2Cu/TC4 alloy. Mutual diffusion of Cu atoms from composite filler and Ti atoms from TC4 alloy occurs during brazing process. Cu-Ti compounds with different components were formed in Al 2O 3/TC4 alloy joints. B reacts with Ti atoms in liquid, and in situ synthesizes TiB whiskers in joint, which mainly distribute into Ti 2Cu and AlCu 2Ti. With the increasing of TiB content, Ti 2(Cu, Al) content increases, and becomes continuous gradually. At the same time, that moves to Al 2O 3 side.",

keywords = "Al O ceramic, Brazing, Microstructure, TC4 alloy",

author = "Minxuan Yang and Tiesong Lin and Chun Han and Peng He and Hongmei Wei",

year = "2012",

month = jul,

language = "英语",

volume = "33",

pages = "33--36+40",

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

issn = "0253-360X",

publisher = "Harbin Research Institute of Welding",

number = "7",

}

TY - JOUR

T1 - Effect of Cu+B composite fillers proportion on Al 2O 3/TC4 alloy joint microstructure

AU - Yang, Minxuan

AU - Lin, Tiesong

AU - Han, Chun

AU - He, Peng

AU - Wei, Hongmei

PY - 2012/7

Y1 - 2012/7

N2 - The composite fillers with different proportions of Cu and B powders were used to braze Al 2O 3 to TC4 alloy at 930°C for 10 min. The joining and microstructure of Al 2O 3/TC4 alloy joints were observed and analyzed by SEM and EDS. The results show that Al 2O 3/TC4 alloy joint interfacial microstructure is Al 2O 3/Ti 3(Cu, Al) 3O/Ti 2Cu+Ti 2(Cu, Al)/ Ti+Ti 2(Cu, Al)+Ti(Cu, Al)+AlCu 2Ti+Ti 2Cu/Ti 2Cu+ AlCu 2Ti+TiB/Ti+Ti 2Cu/TC4 alloy. Mutual diffusion of Cu atoms from composite filler and Ti atoms from TC4 alloy occurs during brazing process. Cu-Ti compounds with different components were formed in Al 2O 3/TC4 alloy joints. B reacts with Ti atoms in liquid, and in situ synthesizes TiB whiskers in joint, which mainly distribute into Ti 2Cu and AlCu 2Ti. With the increasing of TiB content, Ti 2(Cu, Al) content increases, and becomes continuous gradually. At the same time, that moves to Al 2O 3 side.

AB - The composite fillers with different proportions of Cu and B powders were used to braze Al 2O 3 to TC4 alloy at 930°C for 10 min. The joining and microstructure of Al 2O 3/TC4 alloy joints were observed and analyzed by SEM and EDS. The results show that Al 2O 3/TC4 alloy joint interfacial microstructure is Al 2O 3/Ti 3(Cu, Al) 3O/Ti 2Cu+Ti 2(Cu, Al)/ Ti+Ti 2(Cu, Al)+Ti(Cu, Al)+AlCu 2Ti+Ti 2Cu/Ti 2Cu+ AlCu 2Ti+TiB/Ti+Ti 2Cu/TC4 alloy. Mutual diffusion of Cu atoms from composite filler and Ti atoms from TC4 alloy occurs during brazing process. Cu-Ti compounds with different components were formed in Al 2O 3/TC4 alloy joints. B reacts with Ti atoms in liquid, and in situ synthesizes TiB whiskers in joint, which mainly distribute into Ti 2Cu and AlCu 2Ti. With the increasing of TiB content, Ti 2(Cu, Al) content increases, and becomes continuous gradually. At the same time, that moves to Al 2O 3 side.

KW - Al O ceramic

KW - Brazing

KW - Microstructure

KW - TC4 alloy

UR - https://www.scopus.com/pages/publications/84865544940

M3 - 文章

AN - SCOPUS:84865544940

SN - 0253-360X

VL - 33

SP - 33-36+40

JO - Hanjie Xuebao/Transactions of the China Welding Institution

JF - Hanjie Xuebao/Transactions of the China Welding Institution

IS - 7

ER -

Effect of Cu+B composite fillers proportion on Al ₂O ₃/TC4 alloy joint microstructure

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Keywords

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