Brazing continuous carbon fiber reinforced Li2O-Al2O3-SiO2 ceramic matrix composites to Ti-6Al-4V alloy using Ag-Cu-Ti active filler metal

D. Liu; H. W. Niu; Y. H. Zhou; X. G. Song; D. Y. Tang; J. C. Feng

doi:10.1016/j.matdes.2015.08.005

Brazing continuous carbon fiber reinforced Li₂O-Al₂O₃-SiO₂ ceramic matrix composites to Ti-6Al-4V alloy using Ag-Cu-Ti active filler metal

D. Liu
, H. W. Niu^*
, Y. H. Zhou
, X. G. Song
, D. Y. Tang
, J. C. Feng

^*Corresponding author for this work

Harbin Institute of Technology Weihai
Changchun University of Technology
Harbin Institute of Technology

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

33 Scopus citations

Abstract

C_f/LAS composites and TC4 alloy were brazed successfully by vacuum brazing using Ag-Cu-Ti active filler metal. The interfacial microstructure was characterized by a scanning electron microscope, energy dispersive spectrometer and X-ray diffraction. The effects of brazing temperature on the interfacial microstructure and joint properties were investigated in details. Various phases including TiC, TiSi₂, Ti₃Cu₄, Cu (s,s), Ag (s,s), TiCu and Ti₂Cu were formed in the brazed joints. Interfacial microstructure varies greatly with the increase of brazing temperature, while the amount of Ti₂Cu reduced, but no new phase is generated. The optimal shear strength of the joint is 26.4MPa when brazed at 890°C for 10min. Shear test indicated that the fracture of the brazed joints went through the TiSi₂+TiC layer close to the C_f/LAS composites interface.

Original language	English
Pages (from-to)	42-48
Number of pages	7
Journal	Materials and Design
Volume	87
DOIs	https://doi.org/10.1016/j.matdes.2015.08.005
State	Published - 15 Dec 2015

Keywords

Brazing
C/LAS composites
Interfacial microstructure
Mechanical properties
TC4 alloy

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10.1016/j.matdes.2015.08.005

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@article{60189c549efe4cdf9887d7a6db6152f9,

title = "Brazing continuous carbon fiber reinforced Li2O-Al2O3-SiO2 ceramic matrix composites to Ti-6Al-4V alloy using Ag-Cu-Ti active filler metal",

abstract = "Cf/LAS composites and TC4 alloy were brazed successfully by vacuum brazing using Ag-Cu-Ti active filler metal. The interfacial microstructure was characterized by a scanning electron microscope, energy dispersive spectrometer and X-ray diffraction. The effects of brazing temperature on the interfacial microstructure and joint properties were investigated in details. Various phases including TiC, TiSi2, Ti3Cu4, Cu (s,s), Ag (s,s), TiCu and Ti2Cu were formed in the brazed joints. Interfacial microstructure varies greatly with the increase of brazing temperature, while the amount of Ti2Cu reduced, but no new phase is generated. The optimal shear strength of the joint is 26.4MPa when brazed at 890°C for 10min. Shear test indicated that the fracture of the brazed joints went through the TiSi2+TiC layer close to the Cf/LAS composites interface.",

keywords = "Brazing, C/LAS composites, Interfacial microstructure, Mechanical properties, TC4 alloy",

author = "D. Liu and Niu, \{H. W.\} and Zhou, \{Y. H.\} and Song, \{X. G.\} and Tang, \{D. Y.\} and Feng, \{J. C.\}",

note = "Publisher Copyright: {\textcopyright} 2015 .",

year = "2015",

month = dec,

day = "15",

doi = "10.1016/j.matdes.2015.08.005",

language = "英语",

volume = "87",

pages = "42--48",

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T1 - Brazing continuous carbon fiber reinforced Li2O-Al2O3-SiO2 ceramic matrix composites to Ti-6Al-4V alloy using Ag-Cu-Ti active filler metal

AU - Liu, D.

AU - Niu, H. W.

AU - Zhou, Y. H.

AU - Song, X. G.

AU - Tang, D. Y.

AU - Feng, J. C.

PY - 2015/12/15

Y1 - 2015/12/15

N2 - Cf/LAS composites and TC4 alloy were brazed successfully by vacuum brazing using Ag-Cu-Ti active filler metal. The interfacial microstructure was characterized by a scanning electron microscope, energy dispersive spectrometer and X-ray diffraction. The effects of brazing temperature on the interfacial microstructure and joint properties were investigated in details. Various phases including TiC, TiSi2, Ti3Cu4, Cu (s,s), Ag (s,s), TiCu and Ti2Cu were formed in the brazed joints. Interfacial microstructure varies greatly with the increase of brazing temperature, while the amount of Ti2Cu reduced, but no new phase is generated. The optimal shear strength of the joint is 26.4MPa when brazed at 890°C for 10min. Shear test indicated that the fracture of the brazed joints went through the TiSi2+TiC layer close to the Cf/LAS composites interface.

AB - Cf/LAS composites and TC4 alloy were brazed successfully by vacuum brazing using Ag-Cu-Ti active filler metal. The interfacial microstructure was characterized by a scanning electron microscope, energy dispersive spectrometer and X-ray diffraction. The effects of brazing temperature on the interfacial microstructure and joint properties were investigated in details. Various phases including TiC, TiSi2, Ti3Cu4, Cu (s,s), Ag (s,s), TiCu and Ti2Cu were formed in the brazed joints. Interfacial microstructure varies greatly with the increase of brazing temperature, while the amount of Ti2Cu reduced, but no new phase is generated. The optimal shear strength of the joint is 26.4MPa when brazed at 890°C for 10min. Shear test indicated that the fracture of the brazed joints went through the TiSi2+TiC layer close to the Cf/LAS composites interface.

KW - Brazing

KW - C/LAS composites

KW - Interfacial microstructure

KW - Mechanical properties

KW - TC4 alloy

UR - https://www.scopus.com/pages/publications/84944387681

U2 - 10.1016/j.matdes.2015.08.005

DO - 10.1016/j.matdes.2015.08.005

M3 - 文章

AN - SCOPUS:84944387681

SN - 0264-1275

VL - 87

SP - 42

EP - 48

JO - Materials and Design

JF - Materials and Design

ER -

Brazing continuous carbon fiber reinforced Li₂O-Al₂O₃-SiO₂ ceramic matrix composites to Ti-6Al-4V alloy using Ag-Cu-Ti active filler metal

Abstract

Keywords

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