Investigation of separation phenomenon in high-toughness X70 thick-walled linepipe steel
摘要
Separation is a commonly observed phenomenon during drop weight tear testing in high-toughness linepipe steels. Severe separation is harmful because it may cause fracturing or bursting of pipes. In this study,a quantitative measurement of separation was proposed,and using this new method,a relationship between the separation and microstructure was determined and discussed. The microstructures observed using optical and scanning electron microscopy revealed that the separation was related to the mixed ferritic and bainitic microstructures,or rather,it was related to the carbon enrichment in bainite.
引用本文（GB/T 7714）
Ding Ding, Jianhua, Liang Liang, 等. Investigation of separation phenomenon in high-toughness X70 thick-walled linepipe steel[J]. 宝钢技术研究：英文版, 2015.
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