Mg alloy matrix composite reinforced with TiNi continuous fiber prepared by ball-milling/hot-pressing

Mg alloy matrix composite reinforced with TiNi continuous fiber was successfully prepared by ball-milling/hot-pressing process. No oxide was revealed from the X-ray diffraction of the ball-milled Mg alloy powders with an average crystalline size of 39 nm. A nearly full-dense matrix was achieved and the optical microscopy showed fine and homogenous matrix with undamaged TiNi continuous fibers in the composite. Remarkable interfacial reaction product or layer was not observed using a scanning electron microscope and the microhardness in the interfacial zone was higher than that of the matrix, indicating an adequate bonding was formed between the matrix and fiber. The ball-milling/hot-pressing process established in this study is reliable and easy to operate.