Investigation of the effects of scanning speed on microstructure and mechanical properties of hastelloy x super alloy produced by selective laser melting

In recent times, there have been notable advancements in a number of fields, including space exploration, aviation, and petrochemistry. These developments have been driven by the need to advance technology and meet the research and development aspirations of humankind. In this context, materials that can retain their strength even at elevated temperatures and exhibit adequate mechanical properties have emerged as a key focus. Hastelloy X, a nickel-based superalloy, has emerged as a prominent contender in this field, demonstrating its ability to meet these demanding requirements. Furthermore, the selective laser melting (SLM) method has been employed frequently in studies with the objective of rapid prototyping and the production of parts with complex geometry at a lower cost than traditional production methods. In this study, the mechanical properties of Hastelloy X material produced by SLM method are investigated. While laser power (P) 240 W, laser distance (d) 0.6 mm and scanning direction X remain constant, scanning speed (V) varies as 800 mm/s, 1000 mm/s, 1200 mm/s and 1400 mm/s. The effects of scanning speed selected as a variable parameter in the SLM method on the microstructure, hardness, wear, density and corrosive properties of Hastelloy X material were investigated. The results of the tests and examinations indicated that scanning speeds of 1200 and 1400 mm/s, with laser power (P) 240 W, laser distance (d) 0.6 mm and a fixed scanning direction in the X-axis, yielded promising outcomes.