[1]刘海璋,毕宗岳,杨 军,等.N08825/L450MS复合管焊缝组织性能及抗腐蚀特性研究[J].焊管,2017,40(8):1-7.[doi:10.19291/j.cnki.1001-3938.2017.08.001]
 LIU Haizhang,BI Zongyue,YANG Jun,et al.Research on Weld Microstructure and Corrosion Resistance Property of N08825/L450MS Composite Pipe[J].,2017,40(8):1-7.[doi:10.19291/j.cnki.1001-3938.2017.08.001]
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N08825/L450MS复合管焊缝组织性能
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《焊管》[ISSN:1001-3938/CN:61-1160/TE]

卷:
40
期数:
2017年第8期
页码:
1-7
栏目:
试验与研究
出版日期:
2017-08-28

文章信息/Info

Title:
Research on Weld Microstructure and Corrosion Resistance Property of
N08825/L450MS Composite Pipe
文章编号:
10.19291/j.cnki.1001-3938.2017.08.001
作者:
刘海璋12毕宗岳12杨 军12牛 辉12田 磊12黄晓辉12赵红波12牛爱军12
1. 国家石油天然气管材工程技术研究中心, 陕西 宝鸡 721008;
2. 宝鸡石油钢管有限责任公司  钢管研究院, 陕西 宝鸡 721008
Author(s):
LIU Haizhang12 BI Zongyue12 YANG Jun12 NIU Hui12 TIAN Lei12HUANG Xiaohui12 ZHAO Hongbo12 NIU Aijun12
1. Chinese National Engineering Technology Research Center for Petroleum and Natural Gas Tubular Goods, Baoji 721008, Shaanxi, China;
2. Steel Pipe Research Institute of Baoji Petroleum Steel Pipe Co., Ltd., Baoji 721008, Shaanxi, China
关键词:
N08825/L450MSTIG焊组织性能晶间腐蚀点蚀
Keywords:
N08825/L450MS TIG welding structure property intergranular corrosion pitting
分类号:
TG335.8
DOI:
10.19291/j.cnki.1001-3938.2017.08.001
文献标志码:
A
摘要:
为了解决油田严苛服役条件下管材的耐腐蚀问题,采用拉伸试验、夏比冲击试验、DWTT、弯曲试验、硬度测试、金相分析以及晶间腐蚀试验、HIC试验、SSCC试验等方法,对Φ610 mm×20.5(3+17.5) mm 规格N08825/L450MS双金属复合管焊缝的力学性能、微观组织和耐腐蚀性能进行了研究。结果表明,试验焊缝的各项力学性能均满足相关标准要求;覆层焊缝中心区金相组织呈等轴状树枝晶形态,边缘呈柱状树枝晶形态,均为奥氏体+铁素体;复合管覆层母材和焊缝抗晶间腐蚀和点蚀性能优良,基层母材及焊缝对HIC和SSCC不敏感,可满足含有H2S和CO2等强腐蚀油气介质的集输要求。
Abstract:
In order to solve the corrosion resistance problem of tubular goods under harsh service conditions, by adopting tensile test, Charpy impact test, DWTT, bend test, hardness inspection, metallographic analysis, intergranular corrosion test, HIC test, SSCC test and so on, the weld performance of Φ610 mm×20.5(3+17.5) mm N08825/L450MS bimetal composite pipe were studied, including mechanical properties, microstructure and the corrosion resistance. The results indicated that the mechanical properties of the test weld meet the relevant standard requirements, the metallographic structure of the cladding weld center zone presents equiaxial dendritic crystal, and the edges are columnar dendrites, both are austenitic and ferritic. Intergranular corrosion resistance and pitting performance of composite pipe coating material and weld are excellent, the base metal and welds are insensitive to HIC and SSCC, which can meet the gathering requirements of strong corrosive oil and gas media containing H2S and CO2.

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备注/Memo

备注/Memo:
收稿日期:2017-03-15
基金项目:国家863项目课题“双金属层状结构复合管材技术研究”(项目号2013AA031303)。
作者简介:刘海璋(1976—), 男, 陕西宝鸡人, 高级工程师, 主要从事油气管材开发及焊接工艺研究工作。
更新日期/Last Update: 2017-12-11