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| 本钢X70管线钢的组织与性能 | |
| 引用本文： | 贾志鑫,衣海龙,曲鹏,杜林秀,王国栋. 本钢X70管线钢的组织与性能[J]. 材料与冶金学报, 2005, 4(4): 304-307 |
| 作者姓名： | 贾志鑫 衣海龙 曲鹏 杜林秀 王国栋 |
| 作者单位： | 1. 东北大学,轧制技术及连轧自动化国家重点实验室,辽宁,沈阳,110004;本溪钢铁(集团)有限责任公司,辽宁,本溪,117000 2. 东北大学,轧制技术及连轧自动化国家重点实验室,辽宁,沈阳,110004 3. 本溪钢铁(集团)有限责任公司,辽宁,本溪,117000 |
| 摘 要： | 介绍了本钢开发研制的X70管线钢化学成分和生产工艺特点,并对其组织性能进行了分析.结果表明,本钢X70管线钢具有高强度、高抗动态撕裂能力、高低温冲击韧性以及低韧脆转变温度.其优良的性能得益于内部具有与细小析出相交互作用的高密度位错的超低碳针状铁素体组织.目前已形成批量生产能力. |
| 关 键 词： | X70 管线钢 针状铁素体 高强度 高韧性 |
| 文章编号： | 1671-6620（2005）04-0304-04 |
| 收稿时间： | 2005-04-21 |
| 修稿时间： | 2005-04-21 |
Microstructures and mechanical properties of X70 pipeline steel of BXSteel |
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| JIA Zhi-xin,YI Hai-long,QU Peng,DU Lin-xiu,WANG Guo-dong. Microstructures and mechanical properties of X70 pipeline steel of BXSteel[J]. Journal of Materials and Metallurgy, 2005, 4(4): 304-307 | |
| Authors: | JIA Zhi-xin YI Hai-long QU Peng DU Lin-xiu WANG Guo-dong |
| Abstract: | The chemical composition and production process of a X70 pipeline steel developed by BXSteel were introduced, and the microstructure and mechanical properties of the steel were analyzed. The results indicate that the X70 pipeline steel with acicular ferrite microstructure has high strength, high toughness, low transition temperature and high dynamic tear-resistance. The excellent properties of the steel benefit from the ultra-low carbon acicular fcrrite which consists of very fine precipitated particles and high - density dislocations. The ability for the batch process of the steel has been attained in BXStecl. |
| Keywords: | X70 pipeline acicular ferrite high strength high toughness |
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