[1]齐丽华,王 磊,杨耀斌,等.X80管线钢半自动自保护药芯环焊接头性能影响因素研究[J].焊管,2021,44(6):7-12.[doi:19291/j.cnki.1001-3938.2021.06.002]
　QI Lihua,WANG Lei,YANG Yaobin,et al.Influence Factors of Performance of Semi-automatic Self Shielded Flux Cored Girth Welding Joint of X80 Pipeline Steel[J].,2021,44(6):7-12.[doi:19291/j.cnki.1001-3938.2021.06.002]
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X80管线钢半自动自保护药芯环焊接头性能影响因素研究()
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《焊管》[ISSN:1001-3938/CN:61-1160/TE]

卷:
第44卷
期数:
2021年第6期
页码:
7-12
栏目:
试验与研究
出版日期:
2021-06-28

文章信息/Info

Title:
Influence Factors of Performance of Semi-automatic Self Shielded Flux Cored Girth Welding Joint of X80 Pipeline Steel
文章编号:
19291/j.cnki.1001-3938.2021.06.002
作者:
齐丽华; 王 磊; 杨耀斌; 胡美娟; 陈越峰; 何小东
1. 中国石油集团石油管工程技术研究院，西安 710077；
2. 石油管材及装备材料服役行为与结构安全国家重点实验室，西安 710077；
3. 中国石油西部管道公司，乌鲁木齐 830013
Author(s):
QI Lihua;  WANG Lei;  YANG Yaobin;  HU Meijuan;  CHEN Yuefeng;  ?E Xiaodong
1. CNPC Tubular Goods Research Institute，Xi’an 710077, China;?div>2. State Key Laboratory for Performance and Structure Safety of Petroleum Tubular Goods and Equipment Materials, Xi’an 710077, China;
3. Petrochina West Pipeline Company, Urumqi 830013, China
关键词:
X80管道; 环焊接头; 微观组织; 力学性能; 热输入量; 析出物
Keywords:
X80 pipeline;  girth welding joint;  microstructure;  mechanical properties;  heat input;  precipitates
分类号:
TG142
DOI:
19291/j.cnki.1001-3938.2021.06.002
文献标志码:
A
摘要:
针对自保护药芯焊丝半自动焊接（FCAW-S）在高钢级管道环焊焊接中存在的问题，对在役高钢级管道焊口的力学性能进行了统计分析，并运用光学显微镜、扫描电镜、透射电镜、力学性能微测试和硬度云图等分析方法对焊缝组织和性能进行了综合分析。结果显示，焊缝填充焊层间链状M-A组织的分布形态、大小及析出物的大小和分布情况是引起焊缝韧性不稳定的主要因素；FCAW-S环焊接头的根焊强度和硬度远低于管体母材的强度和硬度，是整个环焊接头的薄弱环节。最后指出，X80管道应提高根焊焊材的强度，避免低强匹配引起应力集中。
Abstract:
Aiming at the problems of FCAW-S in girth welding of high grade pipeline, the mechanical properties of welded joint of high grade pipeline in service were analyzed. The microstructure and properties of the weld were analyzed by means of optical microscope, scanning electron microscope, transmission electron microscope, mechanical property microtest and hardness nephogram. The results show that the distribution and size of chain M-A structure and the size and distribution of precipitates are the main factors causing the instability of weld toughness. The root welding strength and hardness of FCAW-S girth welding joint are far lower than that of the base metal of pipe body, which is the weak part of the whole girth welding joint. It is pointed out that the strength of X80 pipe root welding material should be increased to avoid low strength matching. The stress concentration is caused by the stress distribution.

参考文献/References:

[1] International energy agency. Gas 2019 analysis and forecasts to 2024[R/OL]. （2019-07-16）[2021-01-16]. https://www.energypolicy.columbia.edu/events-calendar/ieas-gas-2019-analysis-and-forecasts-2024.

[2] 李为卫，胡美娟，齐丽华，等. 高压力高强度天然气管道国内外标准对比分析[M]. 西安：陕西科学技术出版社，2020.
[3] 李鹤林. 油气输送钢管的发展动向与展望[J]. 焊管，2004，27（6）：1-11，87.
[4] ZHAO M，WEI F，HUANG W Q，et al. Experimental and numerical investigation on combined girth welding of API X80 pipeline steel[J]. Science and Technology of Welding and Joining，2015，20（7）：622-630.
[5] ANDIA J L M，DE SOUZA，LUIS FELIPE GUIMARES， et al. Microstructural and mechanical properties of the intercritically reheated coarse grained heat affected zone (ICCGHAZ) of an API 5L X80 pipeline steel[J]. Advanced Materials Research，2014，12（2）：657-662.
[6] WANG X Y，HE X D，HAN X L，et al. Study on FCAW semi-automatic welding procedure of girth weld joint of line pipes[J]. Advanced Materials Research，2012（415-417）：2078-2084.
[7] 杨柳青，王宏，隋永莉，等. 自保护药芯焊丝焊缝组织及性能研究[J]. 焊管，2013，36（12）：15-18，44.
[8] QI L H，JIN Z L，ZHANG J M，et al.Influence factors of X80 pipeline steel girth welding with self-shielded flux-cored wire[J]. Materials Science and Technology，2017，33（5）：592-691.
[9] CHEN C X，LI W S，WANG Q P，et al. Microstructure and properties of X80 pipeline steel welded coarse grain zone[J]. Transactions of the China Welding Institution，2005，26（6）：77-80.
[10] 王元清，武延民，石永久，等. 含裂纹三点弯曲试样裂纹尖端应力状态分析[J]. 低温建筑技术，2006（1）：37-38，59.
[11] MOORE P，NICH J. The effect of inclusions on the fracture toughness of local brittle zones in the HAZ of girth welded line pipe[C]// ASME 2013 32nd International Conference on Ocean，Offshore and Arctic Engineering. Nantes，France:ASME，2013.

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备注/Memo

备注/Memo:
收稿日期：2021-03-29
基金项目： 国家管网科研课题“高钢级（X80）管道环焊缝缺陷容限评估准则及关键技术研究”（项目编号GDXB22-2019-017）；国际焊接中心支撑研究项目“焊接材料强度失配和热影响区软化行为研究”和 国家重点研发计划“高钢级管线钢低温强韧化控制的冶金学原理及关键技术”（项目编号2017YFB0304901）。
作者简介：齐丽华，博士，教授级高工，主要从事高钢级油气管道用钢管和环焊组织性能研究，以及高钢级管道环焊起裂及损伤机理研究。
更新日期/Last Update: 2021-07-02