【作者】 方剑； 谢凯意； 李阳华； 邹喜洋； 周勇； 周梦雄； 袁泽喜； 张业胜；

【Author】 Fang Jian 1,2,Xie Kaiyi 2,Li Yanghua 2,Zou Xiyang 2,Zhou Yong 2,Yuan Zexi 1,Zhang Yesheng 2(1.Key Laboratory for Ferrous Metallurgy and Resources Utilization of Ministry of Education,Wuhan University of Science and Technology,Wuhan 430081;2.Hengyang Hualing Steel Tube(Group) Co.,Ltd.,Hengyang 421001)

【机构】 武汉科技大学钢铁冶金及资源利用省部共建教育部重点实验室； 衡阳华菱钢管(集团)有限公司；

【摘要】 在φ340机组中,对非调质36Mn2V和37Mn5油井管钢进行工艺试验,通过对二者组织性能的观察,研究36Mn2V钢中微合金元素V的碳氮化物析出对其组织性能的影响。结果表明,36Mn2V钢和37Mn5钢可分别用于高钢级N80-1和低钢级J55、K55油井管的生产,36Mn2V非调质钢在高温形变诱导下析出V(C、N),促进了晶内细小铁素体和珠光体的析出,反过来细晶铁素体促进了V(C、N)沿γ/α界面弥散析出,从而显著改善了36Mn2V非调质钢组织性能。更多还原

【Abstract】 Non-quenching and non-tempering OCTG 36Mn2V and 37Mn5 had been tested on different processes in φ340 mill.Their microstructures and properties had been contrasted,and the influence of precipitation V on microstructure and property of steel 36Mn2V had been analyzed.The result shows that steels 36Mn2V and 37Mn5 can be used for producing N80-1 and J55,K55 OCTG respectively.The precipitation V had notably improved microstructure and enhanced comprehensive properties of steel 36Mn2V.更多还原