The current research work scrutinized the influence of plasma arc in the metallurgical and mechanical behavior of Nimonic 80A weldment. Defect free weld bead of 6 mm thickness was achieved in a single pass through plasma arc welding. The microstructure of weldment is decorated with cellular dendritic structure at the center and at the weld interface region columnar dendritic structure was observed. Metallurgical analysis showed the Cr and Ti secondary precipitates in the interdendritic region of the WZ. The existence of M23C6 and Cr2Ti were observed through the X-ray diffraction analysis. Both tensile test and microhardness test were conducted to study the mechanical properties of weldment. The result concluded that both the strength and ductility inferior than base metal and the hardness of the weld bead is similar to that of BMl.


    Access

    Check access

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Studies on Metallurgical and Mechanical Properties of Plasma Arc Welded Aerospace 80A Grade Alloy


    Additional title:

    Sae Technical Papers



    Conference:

    International Conference on Advances in Design, Materials, Manufacturing and Surface Engineering for Mobility ; 2020



    Publication date :

    2020-09-25




    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English




    Studies on Metallurgical and Mechanical Properties of Pulsed Current Gas Tungsten Arc Welded Aerospace 80A Grade Alloy

    Natarajan, Arivazhagan / Naiju, CD / Kesavan, Gokul Kumar et al. | SAE Technical Papers | 2021




    Upgrading Metallurgical-Grade Silicon

    Woerner, L. M. / Moore, E. B. | NTRS | 1985


    Hot Corrosion Demeanour of Key-Hole Plasma Arc Welded Aerospace Grade Hastelloy X in Molten Salts Environment

    Naiju, CD / GokulKumar, Kesavan / Manikandan, Manoharan et al. | SAE Technical Papers | 2020