| 800 MPa级双相组织低屈服比钢厚板试制 |
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| 引用本文： | 姚连登,焦胜利,赵小婷.800 MPa级双相组织低屈服比钢厚板试制[J].钢铁钒钛,2007,28(2):37-42. |
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| 作者姓名： | 姚连登 焦胜利 赵小婷 |
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| 作者单位： | 宝山钢铁股份有限公司研究院,上海,201900;宝钢宝山钢材贸易有限公司,上海,201900 |
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| 摘 要： | 对基本成分为Fe-0.1C-Mo的微合金HSLA钢进行了变化轧制与冷却参数的试验,分析了钢的组织形貌及微观结构;研究了变形和冷却参数与钢的屈服比、缺口冲击功、延伸率等的关系.指出:通过轧制、冷却工艺的组合与变化,可以实现钢的强度、塑性、屈服比的控制;抗拉强度800 MPa级的厚钢板,其屈服比可控制在0.75以下,低温冲击韧性良好.钢的组织主要由针状铁素体和马氏体两相组成.
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| 关 键 词： | 厚板 控轧控冷 低屈服比 双相组织 |
| 文章编号： | 1004-7638(2007)02-0037-05 |
| 修稿时间： | 2006-10-27 |
Development of 800 MPa Low Yield Ratio Heavy Plate with Dual Phase |
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| Yao Liandeng,Jiao Shengli,Zhao Xiaoting.Development of 800 MPa Low Yield Ratio Heavy Plate with Dual Phase[J].Iron Steel Vanadium Titanium,2007,28(2):37-42. |
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| Authors: | Yao Liandeng Jiao Shengli Zhao Xiaoting |
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| Affiliation: | 1 .Technical Center of BAO Steel Co., Ltd. Shanghai P.B. China,Shanghai 201900, China; 2. BAO Steel Baoshan Steel Products Trading Co. Ltd. ,Shanghai 201900,China |
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| Abstract: | Through varying roiling and cooling parameter of Fe - 0. 1C - Mn - Mo microalloy steel, the dual phase structure of ferrite and martensite is obtained. The effect of process parameters on structure morphology, yield ratio, notch impact energy, elongation of the steel is discussed. The results show that changing rolling and cooling process parameter can realize the individuation control for strength, plasticity and yield ratio. The 800 MPa yield strength heavy plate with below 0. 75 yield ratio has good low - temperature impact toughness, and the structure of the steel mainly consists of ferrite and martensite. |
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| Keywords: | heavy plate TMCP low yield ratio dual phase |
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