High-performance pipeline steels are frequently used for storage, transportation and energy development applications. Submerged arc welding finds its application to weld thick pipes. Design and development of appropriate welding fluxes provide good structural integrity properties in severe service environments. The present study aims to investigate the effect of laboratory-developed SAW fluxes on the electrochemical corrosion behavior of SAW weldments in different environments. Electrochemical corrosion behavior of weld specimens in different environments was performed using Linear Sweep Voltammetry. Different mediums such as seawater and sodium thiosulphate solution (10⁻²Mol/l, pH = 3, and 10⁻³Mol/l, pH = 5) were taken for the corrosion study. The microstructure of the weld specimen reveals the presence of acicular ferrite structure. F₃RA and F₁₉RA weld specimen shows a higher corrosion rate in seawater and sodium thiosulphate medium (pH = 3 or 5).

高性能管线钢通常用于存储，运输和能源开发应用。埋弧焊可用于焊接厚管。适当的助焊剂的设计和开发可在恶劣的服务环境中提供良好的结构完整性。本研究旨在调查实验室开发的SAW助焊剂对SAW焊件在不同环境中的电化学腐蚀行为的影响。使用线性扫描伏安法进行了不同环境下焊缝样品的电化学腐蚀行为。不同的介质，例如海水和硫代硫酸钠溶液（10 ^-2 Mol / l，pH = 3，和10 ^-3摩尔/升，pH = 5）用于腐蚀研究。焊缝试样的微观结构表明存在针状铁素体结构。F ₃ RA和F ₁₉ RA焊接试样在海水和硫代硫酸钠介质（pH = 3或5）中显示出较高的腐蚀速率。