Keep me logged in. Lee, Effe cts of Heat Input on the Pitting. It was also observed that a melted zone with a high Fe content was formed around the fusion line, which became wider as the welding heat input increased. A study was conducted on microtructural evolution and weldability of dissimilar metal welds between AL-6XN super austenitic stainless steel and two nickel-based alloys, IN and IN Martensite for GMAW process and bainite for ESW process were the microstructural constituents observed at the coarse grain heat-affected zone, due to the different cooling rates.
Weld metal Base metal.
Assessment of nickel alloy 625 weld overlays deposited by the electroslag process
In this respect, electro-slag welding ESWwhich promotes high heat inputs and low dilution of the welds, can also be attractive for this application, as it provides a higher productivity, once only one layer is needed for the deposition of the minimum thickness required. STEM and EDX observation showed that the fine precipitates are different in morphology, distribution and composition between V-modified and ordinary steels. Solidification of austenite at the fusion boundary was assigned to its epitaxial growth on the metastable austenitic structure of the base metal resulting from an incipient melting mechanism. SASS can be performed by different processes such as gas. Samples for both conditions did not present. Mo Steels and disbonding of austenitic stain. Weld overlay can be produced via a n umber of arc welding processes.