AUTHOR=Jiang Xueyu , Che Xin , Tian Chen , Zhu Xiaofei , Zhou Ge , Chen Lijia , Li Jianlin 

TITLE=Preparation of 304 Stainless Steel Powder for 3D Printing by Vacuum-Induced Multistage Atomization

JOURNAL=Frontiers in Materials

VOLUME=7

YEAR=2021

URL=https://www.frontiersin.org/journals/materials/articles/10.3389/fmats.2020.623864

DOI=10.3389/fmats.2020.623864

ISSN=2296-8016

ABSTRACT=<p>A vacuum-induced multistage atomization process was adopted to fabricate the high-performance 304 stainless steel powder for 3D printing, based on the flexible control of the droplet spheroidization and solidification process. The 36.7 μm-median diameter (<italic>D</italic><sub>50</sub>) 304 stainless steel powder with high sphericity was successfully obtained, together with particle size proportion of 45–55 μm larger than 35% and the lower oxygen and nitrogen content increment below 0.04%.</p>