STRUCTURE AND MECHANICAL PROPERTIES OF MULTILAYER METAL-INTERMETALLIC COMPOSITES FABRICATED BY EXPLOSIVE WELDING AND ANNEALING

Abstract

To meet the demand of aerospace industry and anti-armor technique, scholars paid much attention to metallic–intermetallic laminate (MIL) composites to get some materials with higher properties like high performance and low specific gravity. In this work, Ti-TiAl3-Ti multilayer composites were obtained using explosive weld method and annealing. The microstructure of the composites are investigated with optical microscopy, scanning electron microscopy (SEM) and X-ray diffraction (XRD). Microhardness measurement was carried out using a Vickers microindenter testing machine. Quasi-static tensile test and bending test were carried out with universal testing machine.