| 一种核岛用钢P280GH热变形行为 |
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| 引用本文： | 于辉,郭元蓉,王秀琳,刘利刚,冯庆,胡铂.一种核岛用钢P280GH热变形行为[J].钢铁,2015,50(1):50-54. |
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| 作者姓名： | 于辉 郭元蓉 王秀琳 刘利刚 冯庆 胡铂 |
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| 作者单位： | 1. 燕山大学机械工程学院， 河北 秦皇岛 066004 2. 攀钢集团成都钢钒有限公司， 四川 成都 610303 |
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| 基金项目： | 国家自然科学基金资助项目(51275445)；河北省自然科学基金钢铁联合基金资助项目 |
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| 摘 要： | 利用Gleeble-3500 热力模拟试验机在800～1 100 ℃，应变速率为0.01～10 s－1的条件下对一种核岛用钢P280GH进行了热压缩变形实验，测定了真应力-真应变曲线，对变形组织进行了系统分析，计算得到了该材料的热变形激活能数值，揭示了其不适合进行再结晶轧制的原因，并建立了该材料的本构方程，为进一步优化轧制工艺和产品性能控制提供理论依据。
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| 关 键 词： | 核岛用钢 热变形 动态再结晶 应力 应变 |
| 收稿时间： | 2014-04-03 |
Hot deformation behavior of nuclear island steel P280GH |
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| YU Hui,GUO Yuan-rong,WANG Xiu-lin,LIU Li-gang,FENG Qing,HU Bo.Hot deformation behavior of nuclear island steel P280GH[J].Iron & Steel,2015,50(1):50-54. |
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| Authors: | YU Hui GUO Yuan-rong WANG Xiu-lin LIU Li-gang FENG Qing HU Bo |
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| Affiliation: | 1. College of Mechanical Engineering， Yanshan University， Qinhuangdao 066004， Hebei， China 2. Chengdu Steel and Vanadium Co.， Ltd.， Pangang Group， Chengdu 610303， Sichuan， China |
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| Abstract: | The hot deformation behavior of a kind of nuclear island steel P280GH has been investigated through uniaxial compression on Gleeble-3500 thermal-mechanical simulator within the temperature range of 800－1 100 ℃, and the strain rate range of 0.01－10 s－1.The corresponding flow curves and microstructures have been determined and analyzed, respectively. The apparent activation energy was obtained, which can be used to explain the reason why the steel present was not suitable for recrystallization rolling. Furthermore, the constitutive equation was eatablished, which provides theoretical basis for the researches of rolling process optimization and properties control. |
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| Keywords: | nuclear island steel hot deformation dynamic recrystallization stress strain |
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