| 7050铝合金热压缩动态再结晶研究 |
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| 引用本文： | 张月婷,贾耀军,肖红,周杰,高林. 7050铝合金热压缩动态再结晶研究[J]. 兵器材料科学与工程, 2014, 0(3): 52-54 |
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| 作者姓名： | 张月婷 贾耀军 肖红 周杰 高林 |
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| 作者单位： | 重庆大学材料科学与工程学院;中国第二重型机械集团公司; |
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| 基金项目： | 国家自然科学基金面上项目(51275543);国家科技部重大专项项目(2012ZX04010-081);重庆大学大型仪器设备开放基金(2012121516) |
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| 摘 要： | 用Gleeble-1500D热模拟压缩试验对7050铝合金高温流变和动态再结晶行为进行研究。结果表明:综合考虑温度和应变速率对动态再结晶的影响,得到动态再结晶峰值应变方程εp=0.015427×ε0.06081·exp(15319/RT),峰值应变与临界应变的关系εc=0.72εp,从而为有限元数值模拟和热加工工艺提供理论和数据参考。
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| 关 键 词： | 铝合金 热压缩 动态再结晶 临界应变 |
Dynamic recrystallization of 7050 aluminium alloy by hot compression |
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| ZHANG Yueting;JIA Yaojun;XIAO Hong;ZHOU Jie;GAO Lin. Dynamic recrystallization of 7050 aluminium alloy by hot compression[J]. Ordnance Material Science and Engineering, 2014, 0(3): 52-54 |
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| Authors: | ZHANG Yueting JIA Yaojun XIAO Hong ZHOU Jie GAO Lin |
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| Affiliation: | ZHANG Yueting;JIA Yaojun;XIAO Hong;ZHOU Jie;GAO Lin;College of Materials Science and Engineering,Chongqing University;China National Erzhong Group Company; |
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| Abstract: | The hot deformation behavior and dynamic recrystallization of 7050 aluminum alloy were investigated on Gleeble-1500D thermal/mechanical simulator. The results show that the peak strain equation of dynamic recrystallization is εp=0.015 427×ε0.060 81·exp(15 319/RT) with the consideration of temperature and stress rate,and the relation between peak strain and critical strain isεc=0.72εp,which provides the theoretical and data reference for finite element analysis and thermal processing. |
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| Keywords: | aluminum alloy hot compression dynamic recrystallization critical strain |
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