Effect of argon and nitrogen atmospheres on the properties of stainless steel 316 L parts produced by laser-powder bed fusion

• Published in: Materials & design Vol. 179; p. 107873
• Main Authors: Pauzon, Camille, Hryha, Eduard, Forêt, Pierre, Nyborg, Lars
• Format: Journal Article
• Language: English
• Published: Elsevier Ltd 05.10.2019; Elsevier
• Subjects: 316 L austenitic stainless steel; Additive manufacturing; Argon; Atmosphere purity; Laser powder bed fusion; Mechanical properties; Nitrogen; Surface chemistry; Laser powder bed fusion; Surface chemistry; Mechanical properties; Additive manufacturing; Argon; Nitrogen; Atmosphere purity; 316 L austenitic stainless steel

The role of the inert gas during laser powder bed fusion (L-PBF) is to remove the process by-products and the air that is initially present in the process chamber. On this purpose, different gas supply options are available. The effect of the process gas and its purity, using argon and nitrogen, on...