石油管材用含Cu钢焊接接头的微生物腐蚀研究

燕冰川, 曾云鹏, 张宁, 史显波, 严伟

Microbiologically Influenced Corrosion of Cu-bearing Steel Welded Joints for Petroleum Pipes

YAN Bingchuan, ZENG Yunpeng, ZHANG Ning, SHI Xianbo, YAN Wei

表2 母材和焊接接头的拉伸性能和冲击性能

Table 2 Tensile strength and impact energy of base steel and weld joint

Sample YS / MPa UTS / MPa EL / % Akv / J Base metal-as-rolled 403 491 33.5 31 Base metal-550 oC/2 h 542 633 27.5 29 Weld joint-as-rolled 419 515 23.5 21 Weld joint-550 oC/2 h 525 630 20.5 17