Formation of uniform sub-100 nm femtosecond laser-induced periodic structures on laser powder bed fusion fabricated stainless steel

Laser Precision Microfabrication (LPM) 2022

Lecture

09.06.2022 (CEST)

Formation of uniform sub-100 nm femtosecond laser-induced periodic structures on laser powder bed fusion fabricated stainless steel

CC

Prof. Dr. Chung-Wei Cheng

National Yang Ming Chiao Tung University

Cheng, C.-W. (Speaker)¹; Jhu, S.-J.¹; Liu, Y.-H.¹

¹National Yang Ming Chiao Tung University

Additive Fertigung

Werkstofftechnik Stahl

Laserinduzierte periodische Oberflächenstrukturen

Femtosekundenlaserbearbeitung

Laserpulverbettfusion

Hochfrequente LIPSS

Vorschau

22 Min. Untertitel (CC)

This study investigated LIPSS produced on LPBF fabricated SUS316L (LPBF-SUS) and typical cold rolled SUS304 (CR-SUS) by femtosecond fiber laser with wavelength 515 nm. The HSFL appeared related to CR-SUS grain boundary characteristics and was partially formed. In addition, the uniform HSFL on the LPBF-SUS with a period of about 60~70 nm (~λ/8) was demonstrated.

Abstract

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