Printability of multiwalled SS 316L by wire arc additive manufacturing route with tunable texture

摘要

The current study delineates the influence of torch angle on texture, orientation and topology. Multiwalled samples were fabricated by cold metal transfer (CMT) technology using variable torch angles of 5 degrees and 15 degrees. The results of X-ray diffraction (XRD) and Electron Back Scattered Diffraction (EBSD) elucidates that, on increasing the torch inclination angle from 5 degrees to 15 degrees, heat input increases considerably, which resulted in sluggish cooling rates that tend to favor the growth of austenite towards < 1 1 1 > direction. Corrosion is greatly influenced by surface energy, SS 316L falls under the category of Face Centered Cubic (FCC), for such metals, (1 1 1) plane has the least surface energy than other planes. Therefore, a pronounced increase in corrosion resistance. (C) 2019 Elsevier B.V. All rights reserved.