2205/Q235大面积双相不锈钢复合板性能分析-《焊管》

文章信息/Info

Title:: Trial-manufacture and Performance Analysis of Large Area 2205/Q235 Duplex Stainless Steel Composite Board

作者:: 毕宗岳¹; 2; 丁宝峰³; 张峰²; 金时麟²; （1.西安理工大学材料科学与工程学院，西安 710048；2.宝鸡石油钢管有限责任公司，陕西宝鸡 721008；3.北京科技大学材料科学与工程学院，北京 100083）

Author(s):: BI Zong-yue¹; 2; DING Bao-feng³; ZHANG Feng²; JIN Shi-lin²; (1.School of Material Science & Engineering of Xi’an University of Technology,Xi’an 710048，China;2.Baoji Petroleum Steel Pipe Co.,Ltd,Baoji 721008,Shaanxi,China;3.School of Materials Science and Engineering,University of Science and Technology Beinjing,Beijing 100083,China)

Keywords:: 2205/Q235 duplex stainless steel; explosive welding; composite material

摘要:: 针对油田对集输管线用板材较高抗腐蚀性的要求，采用爆炸焊接技术，对2205双相不锈钢与碳钢Q235进行爆炸焊接，研制出了10000mm（长）×1400mm（宽）×14mm（厚）大面积双相不锈钢复合板材，其中不锈钢层厚度为2mm。检测结果表明：复合板材的剪切强度及其他力学性能均达到或超过标准要求；HIC试验和SSCC试验加载为72% R_t 0.5时均未出现任何裂纹；在H₂S，CO₂，Cl^-共存的气相腐蚀介质中，试样蚀速率为0.045mm/a；两种材料的复合界面SEM观察及元素分析表明，2205双相不锈钢与Q235完全实现了冶金结合。

Abstract:: Aiming at the requirement of higher corrosion-resistant steel plates for gathering and transporting pipeline，the explosive welding technology was used to 2205 duplex stainless steel and Q235 carbon steel,and large-area duplex stainless steel composite plate with 10000(length)×1400(width)×14 (thickness )mm was developed,in which the stainless steel thickness was 2mm.Test results showed that the shear strength and other mechanical properties of composite plate reached or exceeded the requirement of relevant standards,and no crack appeared at HIC and SSCC tests while test load was 72% R_t 0.5;in gas corrosion media coexistence of H₂S,CO₂,
Cl^－,the corrosion rate of the sample was 0.045mm/a；Through SEM observation and element analysis of two composite interface material showed that 2205 duplex stainless steel and Q235 fully achieved metallurgical combination.