The results show that the plastic deformation is obviously different from that of bulk metal and the thickness plays a key role on the ductiletobrittletransition in al interlayer.
结果表明：中间纯铝层的塑性变形行为明显不同于块体纯金属，其厚度尺寸对材料的韧脆转变具有显著影响。
2
High manganese steels undergo a ductiletobrittletransition at low temperature, which is accompanied by a change in the fracture mechanism from dimple fracture to intergranular fracture.
高锰奥氏体钢随温度降低其断裂机制由韧窝状断裂转变到晶界断裂。
3
And there exists a ductiletobrittle fracture transition caused by loading rate.