[1]汤世云,李振华,胡毓超,等.1.4462双相不锈钢与S355ML碳钢焊接工艺研究[J].焊管,2024,47(1):47-52.[doi:10.19291/j.cnki.1001-3938.2024.01.008]
　TANG Shiyun,LI Zhenhua,HU Yuchao,et al.Research on Welding Process of 1.4462 Duplex Stainless Steel and S355ML Carbon Steel[J].,2024,47(1):47-52.[doi:10.19291/j.cnki.1001-3938.2024.01.008]
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1.4462双相不锈钢与S355ML碳钢焊接工艺研究()
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《焊管》[ISSN:1001-3938/CN:61-1160/TE]

卷:
47
期数:
2024年第1期
页码:
47-52
栏目:
工艺与设备
出版日期:
2024-02-01

文章信息/Info

Title:
Research on Welding Process of 1.4462 Duplex Stainless Steel and S355ML Carbon Steel
文章编号:
10.19291/j.cnki.1001-3938.2024.01.008
作者:
汤世云; 李振华; 胡毓超; 罗文静; 唐闻君; 陈帅
中海福陆重工有限公司，广东 珠海 519050
Author(s):
TANG Shiyun;  LI Zhenhua;  HU Yuchao;  LUO Wenjing;  TANG Wenjun;  CHEN Shuai
COOEC-Fluor Heavy Industries Co., Ltd., Zhuhai 519050, Guangdong, China
关键词:
双相不锈钢; 异种钢; 焊接工艺; 海上风电; 导管架
Keywords:
duplex stainless steel;  heterogeneous steel;  welding process;  offshore wind power;  conduit rack
分类号:
TG457.2
DOI:
10.19291/j.cnki.1001-3938.2024.01.008
文献标志码:
B
摘要:
基于某国外海上风电导管架建造项目的设计要求，开发了EN 10088-2 1.4462双相不锈钢与EN 10025-4 S355ML碳钢的异种钢GTAW焊接工艺，并对该工艺焊接接头进行了组织和力学性能试验。结果显示，焊缝中心组织为粗大的奥氏体+铁素体，分布不均匀，但未见其他中间相（金属间化合物或有害相）析出；接头双相不锈钢侧热影响区和母材区的组织为分布均匀的奥氏体+铁素体，未见其他中间相（金属间化合物或有害相）析出；焊缝区铁素体含量为12%～18%；拉伸断裂位置位于S355ML碳钢母材一侧，焊接接头各位置冲击功均值均大于项目规格书规定的最小冲击功接收值34 J的要求。研究结果认为，采用此焊接工艺获得的焊接接头具有良好的强度、塑性、低温冲击韧性等力学性能，达到了DNVGL-OS-C401—2018标准及海上风电导管架建造项目设计要求。
Abstract:
Based on the design requirements of a foreign offshore wind power conduit construction project, a heterogeneous steel GTAW welding process was developed for EN 10088-2 1.4462 duplex stainless steel and EN 10025-4 S355ML carbon steel, and the microstructure and mechanical properties of the welded joints were tested. The results showed that the center structure of the weld was coarse austenite+ferrite, with uneven distribution, but no other intermediate phases (intermetallic compounds or harmful phases) precipitated. The microstructure of the heat affected zone and base metal zone of the duplex stainless steel joint is uniformly distributed austenite+ferrite, and no other intermediate phases (intermetallic compounds or harmful phases) precipitate. The ferrite content in the weld zone is 12% to 18%. The tensile fracture position is located on one side of the S355ML carbon steel base material, and the average impact energy at each position of the welded joint is greater than the minimum impact energy acceptance value of 34 J listed in the project specification. The research results indicate that the welded joints obtained by the welding process have good mechanical properties such as strength, plasticity, and low?emperature impact toughness, which meet the DNVGL-OS-C401—2018 standard and the design requirements of offshore wind power conduit construction projects.

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备注/Memo

备注/Memo:
收稿日期：2023-05-22作者简介：汤世云（1994—），男，工程师，现主要从事钢结构和工艺管线的焊接设计及焊接工艺研究工作。
更新日期/Last Update: 2024-02-01