| 金属热变形中动态再结晶的临界判据 |
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| 引用本文： | 高维林,白光润,栾瑰馥,龙春满. 金属热变形中动态再结晶的临界判据[J]. 东北大学学报(自然科学版), 1993, 0(1) |
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| 作者姓名： | 高维林 白光润 栾瑰馥 龙春满 |
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| 作者单位： | 东北工学院(高维林，白光润，栾瑰馥)，鞍山钢铁公司(龙春满) |
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| 摘 要： | 通过对动态再结晶物理过程的分析,利用耗散结构理论,建立了发生动态再结晶的临界判据。提出了不均匀塑性变形和回复是动态和静态再结晶发生的两个必要条件。利用热加工模拟试验机对14MnNb钢的动态再结晶行为进行了实验研究,得到的实验结果和理论计算结果符合较好。
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| 关 键 词： | 金属热变形 动态再结晶 临界判据 几何必需位错 回复 |
A Criterion for Dynamic Recrystallization in Metals'''' Hot Working |
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| Gao Weilin,Bai Guangrun,Luan Guifu,Long Chunman. A Criterion for Dynamic Recrystallization in Metals'''' Hot Working[J]. Journal of Northeastern University(Natural Science), 1993, 0(1) |
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| Authors: | Gao Weilin Bai Guangrun Luan Guifu Long Chunman |
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| Abstract: | The process of dynamic recrystallization was investigated in a physical view. A criterion for dynamic re-crystallization occurring in hot working was found on the basis of structure dissipation theory,i. e. non-homogeneously plastic deformation and recovery are regarded as the two necessary conditions for both dynamic and static recrystalliza-tions. Steel 14MnNb was thus tested thermo-mechanically on a simulation machine for study on dynamic recrystallization behavior,and the experimental showed good conformity with theoretical calculation. |
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| Keywords: | dynamic recrystallization criterion geometrically-necessary dislocation recovery. |
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