The induced electromagnetic field possesses the action of electromagnetic purification, and effectively removes formation of impurity grain, segregation, negative segregation and gas cavity.
感生磁场具有电磁净化的作用，可以有效地消除杂质颗粒以及偏析、负偏析和气孔形成的机率。
2
The results show that high content of impurity elements, segregation along grain boundaries and uneven grain size are main reasons for the surface damage of domestic tungsten targets.
结果显示，杂质元素的含量偏高和沿晶界的偏析以及不均匀的钨晶粒是造成国产钨靶表面损伤的主要原因。
3
The segregation of solute atoms in grain boundaries may be classified into equilibrium and non-equilibrium grain boundaries segregation.