The Wear Responses of the Welded Joints of ASTM A335 Gr. P11 Steels Affected by Accelerated Flow Corrosion.
MATERIALS(2019)
Abstract
This study shows the effects of wear on welded joints of ASTM A355 Gr. P11 "Seamless Ferritic Alloy-Steel Pipe for High Temperature Service" steels subjected to the welding procedures established by codes B31.1 and ASME III. The standard welding procedure establishes the following steps: a preheating process, welding and post-weld heat treatment. This generates a wear behavior that depends on the thermal cycles to which the different areas of the joint are subjected. The objective of this article was the study of the behavior against the flow-accelerated corrosion of the welded joints of a low alloy steel. There is the possibility of establishing welding procedures other than those established, while maintaining the safety ranges, depending on the field of application for the steel.
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Key words
wear,welding,hardness,accelerated flow corrosion
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