图4-8显示,第二相CuZn5在基底中含量较低,可出现在晶内或者晶界。挤出加工(extrud)使晶粒显著减小,但并未导致第二相颗粒的明显破碎。
Figures 4-8 shows that the second phase CuZn5 has a low content in the substrate and can appear in the crystal or grain boundary. Extrusion process (extrud) significantly reduced the grain size, but did not cause significant fragmentation of the second phase particles.