多晶体塑性变形的结果,产生加工硬化,残余内应力和性能的方向性。性能的方向性出现是由于金属材料由多成分、多晶体和多相组成的组织,以及成分偏析、孔隙和非金属夹杂物的存在,造成形变的层状、带状和纤维状组织。多晶体材料 Polycrystalline plastic deformation results, resulting in work hardening, residual stress and the direction of performance. The directionality of performance occurs due to the fact that metallic materials consist of multi-component, polycrystalline and heterogeneous components, as well as the segregation of components, the presence of pores and non-metallic inclusions, resulting in delaminated stratified, ribbon and fibrous structures. Polycrystalline material