Proceedings Article | 4 March 2019
KEYWORDS: Oxides, Laser manufacturing, Additive manufacturing, Composites, Laser processing, Nanoparticles, Particles, Spatial light modulators, Applied physics
The feasibility of a novel powder synthesis route that is used in laser additive manufacturing (LAM) of oxide dispersion strengthened steels is demonstrated in this study [1]. The route consists of laser processing of colloids [2] and subsequent electrophoretic deposition [3] and leads to powder composites, which are characterized by a homogenous distribution of oxide nanoparticles on the surface of micrometer-sized stainless steel particles.
The powder composites are successfully processed by the two LAM processes of LMD and SLM, leading to bulk specimens with low porosities and homogenous distribution of nanoscale dispersoids. Compression tests at elevated temperatures demonstrate the superior performance of reinforced material compared to raw stainless steel specimens.
References:
[1] C. Doñate-Buendía, F. Frömel, M. B. Wilms, R. Streubel, J. Tenkamp, T. Hupfeld, M. Nachev, E. Gökce, A. Weisheit, S. Barcikowski, F. Walther, J. H. Schleifenbaum, B. Gökce, Materials & Design 154, 360 (2018).
[2] D. Zhang, B. Gökce and S. Barcikowski, Chem. Rev., 117, 3990, (2017).
[3] R. Streubel, M. B. Wilms, C. Doñate-Buendía, A. Weisheit, S. Barcikowski, J. H. Schleifenbaum, B. Gökce
Jpn. Journal of Applied Physics 57, 040310 (2018).
