SEM experiment displays that the deposit has a (surface) morphology of granular structure with unevengrain sizes.
SEM实验表明，镀层表面形貌为团粒状，颗粒大小较不均匀。
2
Small deformation in high temperature is easy to cause incomplete recrystallization and bulky and unevengrain. It is hard to eliminate them in subsequent rolling process.
高温小变形时容易发生不完全再结晶，造成晶粒粗大且不均匀，在随后的轧制过程中很难消除。
3
The results show that high content of impurity elements, segregation along grain boundaries and unevengrain size are main reasons for the surface damage of domestic tung...