| 800 MPa级CSiMnNb与CSiMnCr系冷轧双相钢组织与性能 |
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| 引用本文： | 柳美玲,潘红波.800 MPa级CSiMnNb与CSiMnCr系冷轧双相钢组织与性能[J].安徽工业大学学报,2013(4):382-385. |
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| 作者姓名： | 柳美玲 潘红波 |
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| 作者单位： | [1]安徽工业大学工商学院,安徽马鞍山243002 [2]安徽工业大学工程研究院,安徽马鞍山243002 |
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| 基金项目： | 国家自然科学基金项目（51275003） |
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| 摘 要： | 在实验室采用CCT-AY-Ⅱ连续退火模拟器研究不同退火温度条件下800 MPa级CSiMnCr与CSiMnNb系冷轧双相钢的力学性能,并对其显微组织进行分析.结果表明：在同一成分试验钢中,770℃退火较790℃退火时所获得的强度高;钢中添加少量的Nb细化了铁素体与岛状马氏体组织,并且岛状马氏体更纯净,屈强比低,加工硬化指数n值更高.
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| 关 键 词： | 连续退火模拟器 冷轧双相钢 岛状马氏体 屈强比 |
Microstructure and Mechanical Properties of 800 MPa Grade C-Si-Mn-Nb and C-Si-Mn-Cr Alloy Systems Cold Rolled Dual-phase Steels |
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| LIU Meiling;PAN Hongbo.Microstructure and Mechanical Properties of 800 MPa Grade C-Si-Mn-Nb and C-Si-Mn-Cr Alloy Systems Cold Rolled Dual-phase Steels[J].Journal of Anhui University of Technology,2013(4):382-385. |
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| Authors: | LIU Meiling;PAN Hongbo |
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| Affiliation: | LIU Meiling;PAN Hongbo(Industrial ＆ Commercial College, Anhui University of Technology, Ma＇anshan243002, China;Engineering Research Institute, Anhui University of Technology, Ma＇anshan243002, China) |
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| Abstract: | 800 MPa grade cold rolled dual phase steels based on C-Si-Mn-Cr and C-Si-Mn-Nb alloy systems were studied with the CCT-AY-Ⅱ continuous annealing simulator in the laboratory.The effects of chemical composition and annealing temperature on mechanical properties and microstructures were analyzed.The results show that,in the same chemical composition,the yield strength and tensile strength of both steels increase with annealing temperature decrease in the temperature range of 770-790℃.By adding a small amount of Nb in steel,the ferrite and martensite islands are refined greatly,and island martensite is more pure,the yield ratio is low,nvalue is high. |
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| Keywords: | continuous annealing simulator cold rolled dual phase steel island martensite yield ratio |
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