India, July 2 -- The Government of India has issued a release:
A crack-free bi-metallic structure developed by researchers using a technique called laser-based powder bed fusion (PBF-LB/M) additive manufacturing can help in reducing the overall use of expensive superalloys thereby reducing the import dependency.
Stainless steels and nickel-based super alloys are widely used in aerospace, nuclear, as well as thermal power plants. Certain regions of a gas turbine may experience temperatures as high as 2000degC, while adjacent sections are exposed to lower temperatures during service conditions. Therefore, combining stainless steel (good toughness and corrosion resistance) with nickel-based superalloys (excellent high-temperature strength an...