| 弹体热收口过程的再结晶行为模拟 |
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| 引用本文： | 张津,张叶成,黄少东,孙智富. 弹体热收口过程的再结晶行为模拟[J]. 兵工学报, 2010, 31(1): 63-67 |
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| 作者姓名： | 张津 张叶成 黄少东 孙智富 |
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| 作者单位： | 北京科技大学,新材料技术研究院,北京,100083;首钢迁安钢铁有限责任公司,河北,迁安,064404;中国兵器工业第五九研究所,重庆,400039;重庆机电职业技术学院,重庆,400050 |
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| 基金项目： | 国防基础科研项目(D1020060359) |
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| 摘 要： | 利用所建立的58SiMn钢奥氏体再结晶数学模型,对该钢制弹体在热收口过程中的再结晶行为进行了模拟;借助再结晶体积分数及晶粒尺寸变化的预测结果,解析了弹体收口后的晶粒分布。结果表明:收口上部由于温度较高且存在较大应变,促使完全动态再结晶发生并进而细化了晶粒;收口下部粗大晶粒的存在是由于该区域所发生的静态及亚动态再结晶不完全和新晶粒在保温过程中长大所致。
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| 关 键 词： | 金属材料 58SiMn钢 再结晶 弹体收口 模拟 |
Simulation of Recrystallization Behavior of Shell Nosing |
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| ZHANG Jin,ZHANG Ye-cheng,HUANG Shao-dong,SUN Zhi-fu. Simulation of Recrystallization Behavior of Shell Nosing[J]. Acta Armamentarii, 2010, 31(1): 63-67 |
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| Authors: | ZHANG Jin ZHANG Ye-cheng HUANG Shao-dong SUN Zhi-fu |
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| Affiliation: | （1.Institute of Advanced Materials Technology，University of Science and Technology Beijing，Beijing 100083，China；2.Qian'an Iron & Steel Corporation of Shougang Group，Qian'an 064404，Hebei，China；3.No.59 Institute of China Ordnance Industry，Chongqing 400039，China；4.Chongqing Electromechanical Vocational College，Chongqing 400050，China） |
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| Abstract: | Based on the established mathematical models of austenite recrystallization of 58SiMn steel,the recrystallization behavior of the shell nosing was simulated.By means of simulated results of recrystallization volume fraction and grain size evolution, the actual grain distribution of the shell after nosing was analysed.The analyzed results show that dynamic recrystallization occurrs and grains can be refined due to the large strain and high temperature at upper part of the shell;the coarse grains exist in low... |
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| Keywords: | metallic material 58SiMn steel recrystallization shell nosing simulation |
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