| 冷轧含Cr DP800双相钢的组织与性能 |
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| 引用本文： | 黄飞,洪永昌,朱国辉.冷轧含Cr DP800双相钢的组织与性能[J].热处理,2010,25(1):29-33. |
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| 作者姓名： | 黄飞 洪永昌 朱国辉 |
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| 作者单位： | 安徽工业大学材料科学与工程学院,安徽,马鞍山,243002 |
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| 摘 要： | 设计了两种不同成分的C-Mn和C-Mn-Cr冷轧双相钢。研究了在两相区温度热处理后其不同比例的F+M双相组织与力学性能的关系。结果表明,C-Mn-Cr钢在770℃保温5min后以10℃/min缓冷至690℃再水冷,可获得由平均晶粒尺寸为6.8μm的铁素体和体积分数约为31%的马氏体组成的双相组织,并具有抗拉强度为825MPa、屈服强度为451MPa和断后伸长率为15.4%的良好力学性能。
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| 关 键 词： | 冷轧双相钢 热处理工艺 组织 性能 铬 |
Microstructure and Property of Cold Rolled DP800 Dual-phase Steel Containing Cr |
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| HUANG Fei,HONG Yong-chang,ZHU Guo-hui.Microstructure and Property of Cold Rolled DP800 Dual-phase Steel Containing Cr[J].Heat Treatment,2010,25(1):29-33. |
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| Authors: | HUANG Fei HONG Yong-chang ZHU Guo-hui |
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| Affiliation: | HUANG Fei,HONG Yong-chang,ZHU Guo-hui(School of Materials Science , Engineering,Anhui University of Technology,Ma\'anshan 243002,Anhui) |
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| Abstract: | Cold rolled C-Mn and C-Mn-Cr dual-phase steels were designed, The dependence of mechanical properties of the steels on their dual-phase structure with different volume ratios of ferrite to martensite was investigated after being heat treated at the temperatures in two-phase region. The results show that C-Mn-Cr steel heated at 770 ℃ for 5 min ,slowly cooled at 10 ℃/min to 690 ℃ and then water cooled will be composed of the ferrite with mean grain size of 6.8 μm and about 31vol% strength of 825 MPa, yield strength of 451 martensite, and will reach such good mechanical properties as tensile MPa and elongation percentage of 15.4% |
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| Keywords: | cold rolled dual-phase steel heating treatment process structure property |
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