The growth velocity for recrystallized grain is proportional to the driving force of recrystallization, which is determined by the grain boundary energy and dislocation density.

再结晶晶粒的生长速度与再结晶驱动力成正比，再结晶驱动力取决于晶界能和位错密度。

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The relationship between the boron hardenability factor and the equilibrium segregation of boron to grain boundary, the composition of steel, the austenitizing temperature, grain size was studied.

研究了硼淬透性因子与硼的晶界平衡集聚规律、钢的成分、奥氏体化温度及晶粒尺寸的关系。建立了硼的晶界平衡集聚方程。

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The total quantity of corrosion surface defect is decreased due to the decrease of grain boundary energy with the increase of grain size and the atmospheric corrosion resistance is increased.

但是晶粒尺寸增大后晶界处因局部腐蚀电流密度增大将会在局部造成更深的腐蚀坑槽并降低耐候性；

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