University of Oulu

Wang, G., Wang, Z., Wang, W., He, R., Gui, K., Tan, C., Cao, W. (2019) Microstructure and shear strength of ZrB2SiC/Ti 6Al 4V joint by TiCuZrNi with Cu foam. Ceramics International, 45 (8), 10223-10229. doi:10.1016/j.ceramint.2019.02.074

Microstructure and shear strength of ZrB₂-SiC/Ti6Al-4V joint by TiCuZrNi with Cu foam

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Author: Wang, Gang1; Wang, Zhentao1; Wang, Wei2;
Organizations: 1School of Mechanical and Automotive Engineering, Anhui Polytechnic University, Wuhu, 241000, PR China
2School of Mechanical Engineering, Anhui Machine and Electricity College, Wuhu, 241002, PR China
3Institute of Advanced Structure Technology, Beijing Institute of Technology, Beijing, 100081, PR China
4State Key Laboratory of Advanced Welding and Joining, Harbin Institute of Technology, Harbin, 150001, PR China
5Nano and Molecular Systems Research Unit, University of Oulu, P.O. Box 3000, FIN-90014, Oulu, Finland
Format: article
Version: accepted version
Access: open
Online Access: PDF Full Text (PDF, 0.8 MB)
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Language: English
Published: Elsevier, 2019
Publish Date: 2019-04-17


In this paper, brazing behaviors between ZrB₂-SiC and Ti-6Al-4V by Cu foam interlayer were studied. The microstructure, formation mechanism, mechanical property and fracture surface of the joints were systematically studied. The results showed that the phases in the joints were α+β-Ti, TiCu, Ti₂Cu, Cu(s, s), TiC, TiB₂ and Ti₃SiC₂. An optimum shear strength reached up to 435  MPa at a brazing temperature of 910 °C and holding time of 20 min. Such a shear strength was 90 MPa higher than the one without the Cu foam. The obtained high shear strength of joint was discussed from microstructure and residual stress. With the increase of brazing time, Cu(s,s) gradually disappeared and the content of Ti₂Cu intermetallic compound increased, which was harmful for the joint. Furthermore, the residual stress of joint with Cu foam was calculated to be 324 MPa, lower than the one without Cu foam interlayer.

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Series: Ceramics international
ISSN: 0272-8842
ISSN-E: 1873-3956
ISSN-L: 0272-8842
Volume: 45
Issue: 8
Pages: 10223 - 10229
DOI: 10.1016/j.ceramint.2019.02.074
Type of Publication: A1 Journal article – refereed
Field of Science: 114 Physical sciences
216 Materials engineering
Funding: This work was financially supported by the National Natural Science Foundation of China [51704001 and 51772028], Natural Science Foundation of Anhui Province [KJ2018A0860, KJ2018A0113, 1508085SQE210, and gxyqZD2016126], Talent Project of Anhui Polytechnic University [2017yyzr08] and the Open Fund of State Key Laboratory of Advanced Welding and Joining [AWJ-16-M04], and the Academy of Finland [311934].
Copyright information: © 2019 Elsevier Ltd and Techna Group S.r.l. This manuscript version is made available under the CC-BY-NC-ND 4.0 license