GH984G 0.02P合金不同时效条件下的室温冲击断口附近纵截面形貌 (a) 标准热处理态,(b) 700 °C时效1000 h,(c) 700 °C时效10000 h
The longitudinal section morphologies of impact fracture at room temperature in the 0.02P alloy after standard heat treatment (a) and thermal exposure at 700 °C for 1000 h (b) and 10000 h (c).