[1]张念涛,徐连勇,韩永典,等.X65/2205耐蚀合金内衬管焊接工艺开发及焊接接头耐蚀性研究[J].焊管,2012,35(11):21-24.[doi:1001-3938(2012)11-0021-04]
 ZHANG Niantao,XU Lianyong,HAN Yongdian,et al.Welding Procedure Development and Corrosion Resistance Research of Welded Joints for X65/2205 Anticorrosion Alloy Clad Pipe[J].,2012,35(11):21-24.[doi:1001-3938(2012)11-0021-04]
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X65/2205耐蚀合金内衬管焊接工艺开发及焊接接头耐蚀性研究
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《焊管》[ISSN:1001-3938/CN:61-1160/TE]

卷:
35
期数:
2012年第11期
页码:
21-24
栏目:
应用与开发
出版日期:
2012-11-28

文章信息/Info

Title:
Welding Procedure Development and Corrosion Resistance Research of Welded Joints for X65/2205 Anticorrosion Alloy Clad Pipe
文章编号:
1001-3938(2012)11-0021-04
作者:
张念涛1徐连勇2韩永典2刘永贞1许可望1
(1.海洋石油工程股份有限公司建造公司焊接试验室, 天津 300452;
2.天津大学 材料科学与工程学院, 天津 300072)
Author(s):
ZHANG Niantao1 XU Lianyong2 HAN Yongdian2 LIU Yongzhen1 XU Kewang1
(1.Welding Lab, Construction Company, Offshore Oil Engineering Co., Ltd, Tianjin 300452, China;
2. School of Materials Science and Engineering, Tianjin University, Tianjin 300072, China)
关键词:
X65/2205耐蚀合金内衬管 焊接工艺 点蚀H2S腐蚀
Keywords:
Key words: X65/2205 anticorrosion alloy clad pipe welding procedure pitting corrosion H2S corrosion
分类号:
TG174.2
DOI:
1001-3938(2012)11-0021-04
文献标志码:
A
摘要:
根据X65/2205耐蚀合金内衬管焊接特点,开发了一种钨极氩弧焊焊接工艺。对内衬管焊接接头进行了显微组织分析、点蚀试验,抗H2S应力腐蚀开裂试验(SSCC)分析。结果表明:焊接接头HAZ的显微组织靠母材一侧为粗大的奥氏体晶粒,靠焊缝一侧为奥氏体基体上分布着铁素体;根部焊缝的显微组织为奥氏体基体上分布着铁素体。经过72 h的点蚀试验后,对根部焊缝而言,钨极氩弧焊背部免充气保护焊接工艺得到的根部焊缝的耐腐蚀性与相邻的根部母材相当。经过720 h SSCC试验后,焊接接头均未发生开裂。
Abstract:
According to the welding characteristics of X65/2205 anticorrosion alloy clad pipe, a GTAW welding technology was developed. The microstructure analysis, pitting corrosion tests and sulfide stress corrosion crack(SSCC) tests were conducted on the X65/2205 clad pipe welded joints. The results revealed that the microstructure of HAZ was coarse austenite near base metal side and ferrite distributed in the austenite matrix near the weld metal side. The microstructure in the weld metal was ferrite distributed in the austenite matrix. After 72 h pitting corrosion test , the corrosion resistance of root weld metal, which was obtained by adopting TIG welding technology of non-filling argon in the back, the corrosion resistance was commensurate to that of the adjacent base metal. After 720 h SSCC test, the result showed that no crack was observed in the welded joints.

参考文献/References:

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备注/Memo

备注/Memo:
作者简介:张念涛(1984—), 男,硕士,工程师,主要从事海洋工程类焊接与技术工作,发表学术论文6篇。
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