摘要

The arc welding of Ti3AlC2 ceramic to Cu(Mg) alloy was carried out without solder. The microstructures and phase compositions of joints were analyzed, and the flexural strengths of welded samples were also tested. The results showed the good weldability of Ti3AlC2 ceramic to Cu(Mg) alloy. In the proper welding technics, the joints had typical microstructures: in the zones adhered to Cu(Mg) alloy, self-generated micro TiCx particles were uniformly dispersed in the network of Cu(Ti,Al,Mg) allloys. While in the zones adhered to Ti3AlC2 ceramic, the TiCx layers and Cu(Ti,Al,Mg) alloy layers were alternately stacked. The failures of welded samples occurred in Ti3AlC2 ceramic substrate, which indicated that the flexural strength of joints exceeded that of the welded Ti3AlC2 ceramic.