Journal
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
Volume 26, Issue 7, Pages 1287-1292Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.jeurceramsoc.2005.01.043
Keywords
TiC cermet; joining; interfaces; microstructure; strength
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A commercially available Ag-Cu braze alloy foil with Zn Was Used to join TiC cermet and steel. According to the experimental observations, the interface structure is (Cu, Ni)/Ag (s.s.) + Cu (s.s.)/(Cu, Ni)/(Cu, Ni) + (Fe Ni) from TiC cermet to steel side. With increased brazing temperature or time, the amounts of (Cu, Ni) near the base metals/Ag-31Cu-23Zn interface and (Cu, Ni) + (Fe, Ni) near the Ag-31Cu-23Zn/steel interface increase, while the amount of Ag (s.s.) + Cu (s.s.) in the middle of the braze alloy decreases. The whole joining process consists of diffusion and solution among atoms of the braze alloy foil and base metals. The maximum shear strength is 120.7 MPa for the joint brazed at 850 degrees C for 10 min. (c) 2005 Elsevier Ltd. All rights reserved.
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