Comparative analysis of Investment Cast Inconel 625 with Atomic Diffusion Additive Manufacturing

Background: Inconel 625, renowned for its remarkable resistance to high-temperature and corrosive environments, serves as a pivotal superalloy in industries with stringent performance demands. Objectives: This study presents a comparative analysis of Inconel 625 components produced via two distinct methods: atomic diffusion additive manufacturing (ADAM) and investment casting (IC). The primary objective of this research is to assess the physical and mechanical properties of samples fabricated through both ADAM and IC. Methods: Mechanical properits including tensile strength, yield strength, and elongation as well as surface quality of the parts are evaluated . A quantitative and insightful comparison between ADAM and IC, offer shedding light on their respective performance in meeting the mechanical requirements of industrial applications. Results: The findings indicate that Inconel 625 components produced via ADAM exhibit comparable mechanical properties, with an ultimate tensile strength of 652MPa, yield strength 298MPa, elongation 42% and hardness of 7HRC. In comparison, Inconel 625 components produced through IC exhibit an ultimate tensile strength of 495MPa, yield strength 283MPa, elongation19%. and hardness of 20HRC. This direct comparison underscores the comparable mechanical properties achieved through ADAM. Conclusion: Beyond the analysis of mechanical properties, this study highlights the practical advantages of ADAM, which offers unparalleled design flexibility, significantly reduces material waste, and enables the creation of intricate geometries tailored to the specific needs of diverse industries. These advantages position ADAM as an optimal choice for industries seeking, design flexibility, light-weighting and fast production.