Pohang University of Science and Technology · Engineering
Professor Gangaraju Manogna Karthik's research lab specializes in advanced manufacturing and surface engineering, focusing on enhancing the mechanical and functional properties of metallic materials through innovative processing techniques. The lab investigates additive manufacturing (particularly laser powder bed fusion), post-processing treatments like annealing and ultrasonic nanocrystal surface modification, and solid-state coating methods such as friction surfacing and plasma transferred arc cladding. Key research directions include microstructural tailoring, wear and corrosion resistance, and the development of gradient and high-performance coatings for industrial applications in aerospace, energy, and defense.
Figures are computed from collected data and may differ slightly.
Developing metal additive manufactured (AM) parts with excellent mechanical properties broaden the utilization of AM parts in various industrial applications. Recently, gradient structures have received significant attention owing to their excellent mechanical properties. In this study, we propose a new strategy to obtain a superior gradient structure using annealing and ultrasonic nanocrystal surface modification (UNSM) on laser powder bed fusion (LPBF) fabricated 316 L stainless steel. The pos
Welding technique is one of the widely used permanent fastener techniques, where in different types of welding are used for different applications. Welding creates property changes in the welded location, so it is important to investigate the core mechanical properties after welding to create better designs using welding techniques. In this project the effect of the welding process of Shielded Metal Arc Welding (SMAW) and the relatively Tungsten inert gas welding (TIG) process on 304 Austenitic
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