Evolution of the interlayer microstructure and the fracture modes of the zirconia/Cu-Ag-Ti filler/Ti active brazing joints

被引:43
|
作者
Smorygo, O.
Kim, J. S.
Kim, M. D.
Eom, T. G.
机构
[1] Powder Met Inst, Minsk 220005, BELARUS
[2] Osstem Co Ltd R&D Ctr, Pusan, South Korea
关键词
brazing; ceramics; metals and alloys; interface; microstructure;
D O I
10.1016/j.matlet.2006.05.024
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
Zirconia (3Y-PSZ) and titanium were joined by active brazing in vacuum with the 63 Ag-35.25 Cu-1.75 Ti (wt.%) filler at 840-870 degrees C under different contact loads. Brazing conditions did not affect noticeably the joint mechanical strength but a remarkable change of the interlayer microstructure was found. This microstructure evolution affected the fracture behavior: ductile fracture through the Ag-rich area changed to a brittle one through the intermetallic area in the titanium-filler interface after brazing with long soaking at maximum temperature. (c) 2006 Elsevier B.V. All fights reserved.
引用
收藏
页码:613 / 616
页数:4
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