Research status and progress of NiAl based alloys as high temperature structural materials

Abstract

Abstract With the development of science and technology, comprehensive performance of high temperature structural materials were demanded urgently. In this paper, the Ni 3 Al and NiAl high temperature structural materials were summarized. Various properties of Ni 3 Al and NiAl were briefly discussed. As well as, various preparations of intermetallics compounds were retrospected. Ni 3 Al and NiAl alloys have good performance such as high melting point, excellent oxidizability resistance under high temperature, moderate density, outstanding heat and electrical conductivity, which were considered as the outlook high temperature structural materials at the present and become emphasis which were exploited and researched.