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Studies on Metallurgical and Mechanical Properties of Plasma Arc Welded Aerospace 80A Grade Alloy
Technical Paper
2020-28-0466
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
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.
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Authors
- Subramani Pasupathi - Jain University
- Mathiyazhagan Sathishkumar - Vellore Inst of Technology
- Narasimhan Anbarasan - National Institute of Technology Trichy
- CD Naiju - Vellore Inst. of Technology
- Manikandan Manoharan - Vellore Institute of Technology
- Savarimuthu Jerome - National Institute of Technology Trichy
Citation
Pasupathi, S., Sathishkumar, M., Anbarasan, N., Naiju, C. et al., "Studies on Metallurgical and Mechanical Properties of Plasma Arc Welded Aerospace 80A Grade Alloy," SAE Technical Paper 2020-28-0466, 2020, https://doi.org/10.4271/2020-28-0466.Data Sets - Support Documents
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