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双相不锈钢通常用于油田中容易腐蚀的一些部件。在构建一个超级双相不锈钢(SDSS)管道时,根部的焊道是最重要的。由于服役过程中管道内壁直接接触腐蚀介质,为了确保管道达到服役条件,获得良好的力学性能和冶金性能,以及好的轮廓和表面形态,所以SDSS管道根部焊道至关重要的一环。即使对于一个有经验的焊工来说,SDSS根部焊道因其严格的焊接要求和工艺质量,都是难以完成的。由于各种原因,性能
Duplex stainless steels are commonly used for parts that can easily corrode in the field. The root bead is the most important when building a Super Duplex Stainless Steel (SDSS) pipe. Because of the direct contact with the corrosive medium on the inner wall of the pipe during service, the SDSS pipe root bead is a crucial element in order to ensure that the pipe reaches service conditions, good mechanical and metallurgical properties, and good profile and surface morphology. Even for an experienced welder, the SDSS root pass is difficult to accomplish due to its rigorous welding requirements and process quality. Due to various reasons, performance