Abstract
Dissimilar metal welds are widely used in process industries for applications such as pressure vessels, reactors, reheaters and heat exchangers. This helps in getting tailor-made properties in components required some heterogeneous working conditions. Joining of dissimilar metals has drawn great interest due to the challenges posed by variation in material composition and characteristics of joining metals. The present study empirically investigates the gas tungsten arc welding (GTAW) parameters to probe their effect on the mechanical and metallurgical behaviour of welded joints of SA335 P11 and SA312 TP304 alloys. Tensile test, hardness measurement and microstructure investigations were performed to check weld strength. The welded joint showed higher strengths than base metals due to carbide formation in weld zone. The strength of joint remains unchanged after heat treatment, whereas increase in hardness was observed due to grain boundary carbide precipitation. The present investigation determines that GTAW technique would be successfully used to join these particular dissimilar alloys.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
