| 二次加热对高钢级管线钢韧性及其组织的影响 |
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| 引用本文： | 张小立,冯强,刘迎来,冯耀荣,姜晨光. 二次加热对高钢级管线钢韧性及其组织的影响[J]. 材料热处理学报, 2008, 0(6) |
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| 作者姓名： | 张小立 冯强 刘迎来 冯耀荣 姜晨光 |
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| 作者单位： | 中原工学院材料与化工学院;中国石油天然气集团公司管材研究所;延长油田股份有限公司青化砭采油厂; |
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| 基金项目： | 国家一等博士后基金项目(20060390319) |
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| 摘 要： | 通过对大量二次加热高钢级管线钢试样韧性指标和剪切面积之间统计规律的分析,研究了高钢级管线钢二次加热后的韧性变化规律,并和母材对比;同时对其与组织的变化关系进行探讨。研究表明,高钢级管线钢在(800～1300℃)二次加热后,剪切面积和Charpy冲击功呈线性关系;背散射电子显微分析(EBSD)研究同时证明,有效晶粒是反映冲击韧性变化的合理参量。
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| 关 键 词： | 高钢级管线钢 二次加热 韧性 母材 有效晶粒 |
Effect of reheating on toughness index and microstructure of high grade pipeline steels |
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| ZHANG Xiao-li,FENG Qiang,LIU Ying-lai,FENG Yao-rong,JIANG Chen-guang. Effect of reheating on toughness index and microstructure of high grade pipeline steels[J]. Transactions of Materials and Heat Treatment, 2008, 0(6) |
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| Authors: | ZHANG Xiao-li FENG Qiang LIU Ying-lai FENG Yao-rong JIANG Chen-guang |
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| Affiliation: | ZHANG Xiao-li1,FENG Qiang1,LIU Ying-lai2,FENG Yao-rong2,JIANG Chen-guang3(1.Materials , Chemical Engineering School,Zhongyuan University of Technology,Zhengzhou,450007,China,2.Tubular Goods Research Centre,Xi'an 710065,3.Qin Hua Bian Oil Field,Yan Chang Petroleum Limited Company,Yanan 716003,China) |
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| Abstract: | The effect of reheating of high grade pipeline steels on charpy impact toughness was studied based on experiments.The microstructure of the reheat pipeline steels was investigated by SEM and EBSD technique.The results show that a linear relationship between CVN value and shearing area of the reheated pipeline steels is observed.EBSD results show that the effective grain size of the steel is a proper parameter to characterize CVN impact toughness of the steels. |
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| Keywords: | high-grade pipeline steel reheat toughness parent pipe effective grain size |
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