Research on the Nanophase Reinforce Cu Alloy

The microstructure of as-cast state and as-aged of a Cu-0.43Cr-0.22Zr-0.092Mg alloy were analysized by TEM and HRTEM, and the formation mechanics of nanophase during heat treatment were discussed. The research showed that precipitations came from the microstructure of casting alloy which adjacent streak spacing were 1.2nm after aging, which obeyed the Nishyama-Wasserman orientation relationship with the matrix.