Recommend design of filler metal to minimize carbon steel weld metal preferential corrosion in CO2-saturated oilfield produced water

被引：30
|
作者：
Lu, Yongxin [1 ,2 ]
Jing, Hongyang [1 ,2 ]
Han, Yongdian [1 ,2 ]
Feng, Zhicao [3 ]
Xu, Lianyong [1 ,2 ]
机构：
[1] Tianjin Univ, Sch Mat Sci & Engn, 31-169,Peiyang Pk Campus,92 Weijin Rd, Tianjin 300072, Peoples R China
[2] Tianjin Key Lab Adv Joining Technol, Tianjin 300072, Peoples R China
[3] 515 Riverview Dr, Columbus, OH 43202 USA
来源：
APPLIED SURFACE SCIENCE | 2016年 / 389卷
基金：
中国国家自然科学基金;
关键词：
Mild steel; Weight loss; XPS; Welding; Acid corrosion; LOW-ALLOYED STEEL; PIPELINE STEEL; CO2; CORROSION; ELECTRODISSOLUTION KINETICS; ELECTROCHEMICAL CORROSION; MECHANICAL-PROPERTIES; CHLORIDE SOLUTIONS; HIGH-TEMPERATURE; API X70; BEHAVIOR;
D O I：
10.1016/j.apsusc.2016.07.151
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
The paper proposes a recommend design for the alloying elements in the filler metal to minimize preferential weld corrosion of carbon steel. The tensile and corrosion resistance properties of the weld metal are considerably improved by using a filler metal containing alloying elements according to the recommended design. Analysis of the morphology and composition of corrosion products on weld metals showed that the common weld metal suffered severe localized corrosion, whereas the weld metal with the alloying elements exhibited uniform corrosion. Based on these results, a tentative mechanism of CO2 corrosion resistance for both weld metals has been proposed. (C) 2016 Elsevier B.V. All rights reserved.
引用
收藏
页码：609 / 622
页数：14
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