TY - JOUR
T1 - Microstructure and shear strength of ZrB 2 –SiC/Ti–6Al–4V joint by TiCuZrNi with Cu foam
AU - Wang, Gang
AU - Wang, Zhentao
AU - Wang, Wei
AU - He, Rujie
AU - Gui, Kaixuan
AU - Tan, Caiwang
AU - Cao, Wei
N1 - Publisher Copyright:
© 2019 Elsevier Ltd and Techna Group S.r.l.
PY - 2019/6/1
Y1 - 2019/6/1
N2 - In this paper, brazing behaviors between ZrB 2 –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, Ti 2 Cu, Cu(s, s), TiC, TiB 2 and Ti 3 SiC 2 . 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 Ti 2 Cu 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.
AB - In this paper, brazing behaviors between ZrB 2 –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, Ti 2 Cu, Cu(s, s), TiC, TiB 2 and Ti 3 SiC 2 . 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 Ti 2 Cu 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.
KW - Brazing
KW - Cu foam
KW - Microstructure
KW - Shear strength
KW - UHTC
UR - http://www.scopus.com/inward/record.url?scp=85061658659&partnerID=8YFLogxK
U2 - 10.1016/j.ceramint.2019.02.074
DO - 10.1016/j.ceramint.2019.02.074
M3 - Article
AN - SCOPUS:85061658659
SN - 0272-8842
VL - 45
SP - 10223
EP - 10229
JO - Ceramics International
JF - Ceramics International
IS - 8
ER -