Structure and Characteristics of the Fracturing of Layered Ni-Al Composites

Resumo

Layered composite materials with alternating layers of a solid solution of aluminum in nickel and intermetallic Ni-Al compounds are obtained. The evolution of the composite structures depending on the heat-treatment conditions is discussed. The mechanical tests of materials highlight a fracture toughness of up to 23 MPa m^1/2, a strength of up to 1800 MPa at room temperature and 150–480 MPa in the range 1000–1150°C.