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Wei Wang, Yaping Liu, Gang Wang, Caiwang Tan, Wei Cao, Vacuum brazing ZSCf composite ceramics to TC4 alloy with Ag-Cu filler, Journal of Materials Research and Technology, Volume 9, Issue 4, 2020, Pages 8627-8635, ISSN 2238-7854, https://doi.org/10.1016/j.jmrt.2020.05.119

Vacuum brazing ZSCf composite ceramics to TC4 alloy with Ag-Cu filler

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Author: Wang, Wei1; Liu, Yaping2; Wang, Gang2;
Organizations: 1School of Aviation and Materials, Anhui Technical College of Mechanical and Electrical Engineering, Wuhu 241002, China
2Anhui Key Laboratory of High-performance Non-ferrous Metal Materials, Anhui Polytechnic University, Wuhu 241000, China
3State Key Laboratory of Advanced Welding and Joining, Harbin Institute of Technology, Harbin 150001, China
4Nano and Molecular Systems Research Unit, University of Oulu, P.O. Box 3000, FIN-90014 Oulu, Finland
Format: article
Version: published version
Access: open
Online Access: PDF Full Text (PDF, 2.9 MB)
Persistent link: http://urn.fi/urn:nbn:fi-fe2020100778230
Language: English
Published: Elsevier, 2020
Publish Date: 2020-10-07
Description:

Abstract

In this study, the carbon fiber reinforced ZrB₂-SiC composite ceramic was joined to Ti6Al4V alloy with Ag-Cu eutectic alloy filler at varied holding time and a fixed temperature of 800℃. Interface microstructure and shear strength of brazing joints were studied. The brazed ZSCf ceramics/AgCu/TC4 alloy is endowed with good metallurgical bondings. A typical interfacial structure of joints brazed for 10 min was found as ZSCf/TiC/Ti₅Si₃/Ag(s,s)/Cu(s,s) + TiC/TiCu/Ti₂Cu/(TiC + TiCu)/TC4 alloy. Increase of holding time did not vary the precipitated phase of the joints but decreased thickness of the Ag(s, s) and Cu(s, s) reaction layer and gradually thickened the Ti-Cu reaction layer near the TC4 side. The formation process of reaction products was discussed in detail. The holding time substantially influenced shear strength of the joints. A maximum shear strength of 39 MPa was reached at a brazing time of 20 min.

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Series: Journal of materials research and technology
ISSN: 2238-7854
ISSN-E: 2214-0697
ISSN-L: 2238-7854
Volume: 9
Issue: 4
Pages: 8627 - 8635
DOI: 10.1016/j.jmrt.2020.05.119
OADOI: https://oadoi.org/10.1016/j.jmrt.2020.05.119
Type of Publication: A1 Journal article – refereed
Field of Science: 216 Materials engineering
114 Physical sciences
Subjects:
Brazing
Microstructure
TC4 alloy
ZSC(f) composite ceramics
Article
Funding: This work was financially supported by the National Natural Science Foundation of China [51704001]; Natural Science Foundation of Anhui Province [2008085J23]; Talent Project of Anhui Province [Z175050020001]; Key Project of Natural Science of Education Department of Anhui Province [KJ2018A0860, 2019zyk39], and the Academy of Finland [No. 311934]. The Center of Microscopy and Nanotechnology of University of Oulu is also acknowledged for materials characterizations.
Copyright information: © 2020 The Author(s). Published by Elsevier B.V. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0.
  https://creativecommons.org/licenses/by-nc-nd/4.0/