| AVS 63rd International Symposium & Exhibition | |
| Applied Surface Science | Tuesday Sessions |
| Session AS-TuP |
| Session: | Applied Surface Science Division Poster Session |
| Presenter: | David Wieliczka, Honeywell Federal Manufacturing and Technology |
| Authors: | D.M. Wieliczka, Honeywell Federal Manufacturing and Technology A.S. Choi, Honeywell Federal Manufacturing and Technology J.A. Crow, Honeywell Federal Manufacturing and Technology C.J. Cook, Honeywell Federal Manufacturing and Technology L.F. Elder, Honeywell Federal Manufacturing and Technology R.D. Koch, Honeywell Federal Manufacturing and Technology T.A. Pond, Honeywell Federal Manufacturing and Technology B.C. Sartin, Honeywell Federal Manufacturing and Technology D.R. Shinault, Honeywell Federal Manufacturing and Technology S.E. Van Slyke, Honeywell Federal Manufacturing and Technology |
| Correspondent: | Click to Email |
Understanding the effects of powder reuse on metallurgical properties of components fabricated via laser powder bed fusion is critical to ensure the production of functional components. The inability to reuse metal AM powder will have a significant negative economic impact on this manufacturing method. In mid-2015, the KC NSC initiated a 316L powder study on a consistent run of components. This paper will present surface analysis results from both virgin metal powder and powder sampled from the overflow bin after a build. In addition to XPS, the powders have been examined with SEM/EDS to provide morphology and composition, direct probe mass spectroscopy to examine the outgassing of the material, and ICP-MS to examine the impurities at ppm levels. The XPS data was obtained from the surface of the powder as well as a function of depth utilizing argon ion sputtering and provides unique information on the elemental composition of the surface. Specifically, we were tracking the elemental surface enrichment due to vapor created during the build process. We are also examining the oxide chemistry of both the surface and near surface region.