| 一种大变形管线钢的组织-性能分析 |
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| 引用本文： | 郝世英,高惠临,闫凯鹃,张骁勇,吉玲康,李为卫. 一种大变形管线钢的组织-性能分析[J]. 材料工程, 2012, 0(3): 61-65 |
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| 作者姓名： | 郝世英 高惠临 闫凯鹃 张骁勇 吉玲康 李为卫 |
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| 作者单位： | 西安建筑科技大学材料科学与工程学院;西安石油大学材料科学与工程学院;中国石油天然气集团公司管材研究所 |
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| 基金项目： | 国家自然科学基金资助项目(50874090,51174165) |
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| 摘 要： | 通过在线加热配分(HOP,Heating On-line Partitioning)技术获得贝氏体和马氏体/奥氏体(B+M/A)双相组织,研究了这种(B+M/A)双相管线钢的组织-性能特征。结果表明,在满足我国"西气东输二线"管道工程的强韧性要求前提下,这种(B+M/A)双相管线钢还具有低的屈强比和大的均匀伸长率,表现出优良的大变形能力。多位向贝氏体基体、细小的M/A组元和弥散分布的碳、氮化合物析出是保证实验钢优良性能的组织特征。
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| 关 键 词： | 大变形管线钢 (B+M/A)双相组织 组织 性能 |
Microstructure and Mechanical Properties of X80 Pipeline Steel with Excellent Deformability |
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| HAO Shi-ying,GAO Hui-lin,YAN Kai-juan,ZHANG Xiao-yong,JI Ling-kang,LI Wei-wei. Microstructure and Mechanical Properties of X80 Pipeline Steel with Excellent Deformability[J]. Journal of Materials Engineering, 2012, 0(3): 61-65 |
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| Authors: | HAO Shi-ying GAO Hui-lin YAN Kai-juan ZHANG Xiao-yong JI Ling-kang LI Wei-wei |
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| Affiliation: | 1 School of Materials Science and Engineering,Xi’an University of Architecture Technology,Xi’an 710048,China;2 School of Materials Science and Engineering, Xi’an Shiyou University,Xi’an 710065,China;3 CNPC Tubular Goods Research Institute,Xi’an 710065,China) |
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| Abstract: | By Heating On-line Partitioning(HOP) method to obtain(B+M/A) dual phase,the microstructure and property of a dual phase pipeline steel are investigated.The results show that,in the context of meeting the strength and toughness requirements of the second west-east gas pipeline project in China,the(B+M/A) dual phase pipeline steel also possesses a lower yield/tensile ratio and higher uniform elongation,showing excellent deformation ability.The bainitic matrix,M/A component and the precipitation of carbonitride are the microstructure characteristics of experimental steel. |
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| Keywords: | pipeline steels with excellent deformability (B+M/A) dual phase microstructure mechanical property |
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