应用IFP技术改善管线钢HAZ韧性的研究  

INVESTIGATION ON IMPROVEMENT OF PIPE STEEL BY USE OF TECHNOLOGY OF INTRAGRANULAR FERRITE PLATE

作　　者：汪钺强[1] 虞敌卫[1] 潘丽英[1] 郭曙强[2] 杨森龙 马金昌[2] 朱钰如 徐建伦[2] 蒋国昌[2] 

机构地区：[1]宝山钢铁(集团)公司 [2]上海市钢铁冶金新技术开发应用重点实验室

出　　处：《钢铁》1997年第1期53-58,21,共7页Iron and Steel

摘　　要：输送石油、天然气的焊接钢管常用X-60钢制成。为了改善X-60钢的HAZ韧性,以适应高能施焊之需,而进行了晶内铁索体片(IFP)技术研究。介绍了IFP技术的基本思路,在焊接热模拟规范给定的条件下,研究和讨论了脱氧制度对IFP的作用。试验表明:IFP体积百分数>50%时,钢的室温冲击能平均在130 J的水平上,但IFP体积百分数低者仅50～60J。The welded pipes for the transportation of oil and natural gas are used to be made of X-60 steel. In order to make the steel being able to stand for high energy welding, a technology called as Intragranular Ferrite Plate (IFP) is adopted to improve its HAZ toughness. In this paper, the basic idea of IFP is introduced. Under the conditions of welding simulation, the effect of deoxidation on IFP has been investigated and discussed. The results indicated that the average absorbed energy of impact test under room temperature is about 130 J if the IFP % (vol.) is higher than 50%, however, it is only 50 to 60 J if the IFP % (vol.) is quite low.

关 键 词：焊接热影响区 韧性 晶内铁素体片 结构钢 

分 类 号：TG142.41[一般工业技术—材料科学与工程]