Browse Publications Technical Papers 2020-28-0466
2020-09-25

Studies on Metallurgical and Mechanical Properties of Plasma Arc Welded Aerospace 80A Grade Alloy 2020-28-0466

The current research work scrutinized the influence of plasma arc in the metallurgical and mechanical behavior of alloy 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 columnar dendritic structure at the weld interface region. Scanning electron microscopy (SEM)/ Energy-dispersive X-ray spectroscopy (EDS) analysis showed the Cr and Ti secondary precipitates in the interdendritic region of the weldment. The presence of M23C6 and TiC were observed through the X-ray diffraction analysis. Both tensile test and microhardness test were conducted to study the mechanical properties of the weldment. The result concluded that both the strength and the hardness of the weld bead is slightly lower than the base metal.

SAE MOBILUS

Subscribers can view annotate, and download all of SAE's content. Learn More »

Access SAE MOBILUS »

Attention: This item is not yet published. Pre-Order to be notified, via email, when it becomes available.
Members save up to 18% off list price.
Login to see discount.
Special Offer: Download multiple Technical Papers each year? TechSelect is a cost-effective subscription option to select and download 12-100 full-text Technical Papers per year. Find more information here.
X