The results indicate that the initial ferrite microstructure gradually developed into the equiaxed submicrometer grain microstructure with high angle boundaries with increasing the pass number.
结果表明，铁素体组织随变形道次的增加逐渐演变为等轴状大角度晶界的亚微晶组织；
The result showed that copper was distributed inharmoniously in the supersaturation ferrite after solution treatment, in which a large number of namostructure ordering domain was distributed.
这种过饱和铁素体基体上分布着大量纳米级的有序畴结构。
The lamellar cementite in the pearlite broke up and a large number of granular cementite precipitate on the ferrite boundaries.
在相邻铁素体界隅及边界上出现大量颗粒状和膜片状的渗碳体。
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