High-strength magnesium alloy and magnesium alloy composites has important application prospect in cars and other products. Wires net, stainless steel fiber reinforced AZ91 magnesium alloy composites and AZ91/Porous titanium duplex 3d connected respectively produced by seepage casting method in this paper, and the composite stainless steel fiber/AZ91 magnesium alloy composite material for extrusion processing. The microstructures and interface were examined by optical microscopy (OM) metallurgical microscop...