简要介绍了管线钢的概念和组织发展过程,详细论述了管线钢主要组织形态——多边形铁素体(PF)、准多边形铁素体(QF)、粒状贝氏体(GB)、贝氏体铁素体(BF)和针状铁素体(AF)的主要特征。最后,对管线钢的一些其他组织的基本特征进行了简要分析。
This article briefly introduced concept and structure development procedure of pipeline steels,and detailedly expatiated main structure characteristics of pipeline steels such as polygonal ferrite(PF),quasi-polygonal ferrite(QF),granular bainite(GB),bainite ferrite(BF) and acicular ferrite(AF).Finally,it briefly analyzed basic characteristics of other structures.