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| 超低碳针状铁素体管线钢的显微特征及强韧性行为 | |
| 引用本文： | 赵明纯,肖福仁,单以银,李玉海,杨柯.超低碳针状铁素体管线钢的显微特征及强韧性行为[J].金属学报,2002,38(3):283-287. |
| 作者姓名： | 赵明纯 肖福仁 单以银 李玉海 杨柯 |
| 作者单位： | 1. 中国科学院金属研究所,沈阳 110016 2. 中国科学院金属研究所,沈阳 110016;燕山大学材料系,秦皇岛 066004 3. 中国科学院金属研究所,沈阳 110016;沈阳工业学院材料系,沈阳 110016 |
| 基金项目： | 国家973重大基础研究项目 G1998061511 |
| 摘 要： | 利用力学实验及微观分析手段，研究了超低碳针状铁素体管线钢的显微特征及其对强韧性的影响。结果表明，通过纯净化和热加工工艺优化。可在超低碳管线钢中获得具有以针状铁素体为主的显微组织，并在其铁素体晶界上发现有马氏体薄膜的存在。这些微观特征成为大幅度提高超低碳针状铁素体管线钢强韧性的重要因素。 |
| 关 键 词： | 管线钢 针状铁素体 显微组织 力学性能 输气管道 超低碳钢 |
| 文章编号： | 0412-1961(2002)03-0283-05 |
| 修稿时间： | 2001年6月12日 |
MICROSTRUCTURAL CHARACTERISTIC AND TOUGHENING OF AN ULTRALOW CARBON ACICULAR FERRITE PIPELINE STEEL |
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| ZHAO Mingchun,XIAO Furen,SHAN Yiyin,LI Yuhai,YANG K eInstitute of Metal Research,The Chinese Academy of Sciences,Shenyang.MICROSTRUCTURAL CHARACTERISTIC AND TOUGHENING OF AN ULTRALOW CARBON ACICULAR FERRITE PIPELINE STEEL[J].Acta Metallurgica Sinica,2002,38(3):283-287. | |
| Authors: | ZHAO Mingchun XIAO Furen SHAN Yiyin LI Yuhai YANG K eInstitute of Metal Research The Chinese Academy of Sciences Shenyang |
| Affiliation: | ZHAO Mingchun,XIAO Furen,SHAN Yiyin,LI Yuhai,YANG K eInstitute of Metal Research,The Chinese Academy of Sciences,Shenyang 110016Department of Material Science and Engineering,Yanshan University,Qinhuangdao 066004Department of Material Science and |
| Abstract: | The microstructural characteristic and its effect on toughening of an ultralow carbon acicular ferrite pipeline steel were investigated by means of mechanical testing and microstructural anal-ysis. Experimental results showed that the acicular ferrite dominated microstructure can be obtained for the ultralow carbon pipeline steel through the clean melting and the optimized thermo-mechanical processing. It was also found that there exists a layer of thin martensite film at the grain boundary of ferrite. All these microstructural characteristics play important roles in enhancement of toughening for the ultralow carbon acicular ferrite pipeline steel. |
| Keywords: | pipeline steel acicular ferrite microstructure mechanical property |
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