Abstract
Dissimilar Welding of Austenitic and Martensitic Stainless Steel Joints are commonly preferred in Nuclear Reactors where high temperature applications are needed. There has been a huge demand for materials which sustain corrosive environment with high rupture strength along with high temperature and pressure. These materials can be directly replaced with the traditional nickel based alloys to compensate for cost cutting and satisfy strength requirements. Dissimilar welding of these materials has been challenging due to the difference in its composition, properties and also heterogeneity in microstructure of these materials. A Study was done to identify what are the commonly used joining techniques, the mechanical properties of the joints and also the microstructure evolution of the dissimilar weld joints. This paper will emphasize on the work that was previously published in the area of dissimilar welding of these combinations of materials and also their challenges.
Highlights
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
Summary
Sign-in/Register to view highlights & summary 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.
