Formation of Sub-100 nm Femtosecond Laser-Induced Periodic Fine Structures on Laser Powder Bed Fusion Fabricated Stainless Steel

This study investigated laser-induced periodic surface structures (LIPSS) produced on laser powder bed fusion (LPBF) fabricated SUS316L (LPBF-SUS) and typical cold-rolled SUS 304 (CR-SUS) by femtosecond fiber laser with a wavelength of 515 nm. The HSFL (high spatial frequency LIPSS) appeared related...

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Bibliographic Details
Published inJournal of laser micro nanoengineering Vol. 18; no. 1; p. 1
Main Authors Cheng, Chung-Wei, Jhu, Siou-Jhun, Liu, Yi-Hsien, Yeh, Shu-Chun
Format Journal Article
LanguageEnglish
Published Japan Laser Processing Society 01.06.2023
Subjects
Alloys
Grain boundaries
Powders
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Summary:This study investigated laser-induced periodic surface structures (LIPSS) produced on laser powder bed fusion (LPBF) fabricated SUS316L (LPBF-SUS) and typical cold-rolled SUS 304 (CR-SUS) by femtosecond fiber laser with a wavelength of 515 nm. The HSFL (high spatial frequency LIPSS) 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 (~[lambda]/8) was demonstrated. Keywords: laser processing, grain boundaries, laser-induced periodic surface structure, laser powder bed fusion
ISSN:1880-0688
1880-0688
DOI:10.2961/jlmn.2023.01.2006