从微观水平分析了杂质对晶体表面台阶生长速率的影响。
The influence of impurities on crystallization process and properties of products has been reviewed.
观察和研究的结果表明：关于光滑界面生长动力学的BCF模型、关于杂质对台阶生长阻碍作用的C V模型等已受到冲击与挑战；
The BCF model about smooth interface growth kinetics and the C V model about impurity stopping step have been collided with the AFM study results.
最后讲述了珠光体生长的台阶机制及一些非铁碳合金的共析组织。
At the last, the steps mechanism of pearlitic growing and some eutectoid structures of non Fe-C alloys are pointed out.
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