Formation behavior of laser-induced periodic surface structures on stainless tool steel in various media

Tomoki Kobayashi, Tomohiro Wakabayashi, Yuichi Takushima, Jiwang Yan

Research output: Contribution to journalArticle

Abstract

The formation of laser-induced periodic surface structure (LIPSS) has been observed on various materials. As LIPSS can be used for modifying various surface properties such as wettability, tribology and optical performance, the control of the period and topography of LIPSS is an important issue. In this study, picosecond pulsed laser irradiation was performed on a stainless tool steel in various types of media including the air, water, sugar syrup (water and sucrose (C 12 H 22 O 11 )), decane (C 10 H 22 ), and ethanol (C 2 H 5 OH). Different surface morphologies were observed on the steel surface after laser irradiation, depending on the types of media. A strong relationship was identified between the period of LIPSS and the refractive index of liquid. In addition to the change of LIPSS period, complicated mesh patterns were formed on the surface irradiated in decane and ethanol, indicating the significant effect of thermal conductivity of the liquids on surface formation mechanisms. This study demonstrated the possibility of controlling the period and topography of LIPSS by using different media.

Original languageEnglish
Pages (from-to)244-252
Number of pages9
JournalPrecision Engineering
Volume57
DOIs
Publication statusPublished - 2019 May 1

Fingerprint

Tool steel
Surface structure
Stainless steel
Lasers
Sugar (sucrose)
Laser beam effects
Topography
Ethanol
Tribology
Liquids
Pulsed lasers
Surface properties
Surface morphology
Wetting
Water
Thermal conductivity
Refractive index
Hydrogen
Steel
Air

Keywords

  • Laser-induced periodic surface structure
  • Nanostructure
  • Picosecond pulsed laser
  • Refractive index
  • Surface topography

ASJC Scopus subject areas

  • Engineering(all)

Cite this

Formation behavior of laser-induced periodic surface structures on stainless tool steel in various media. / Kobayashi, Tomoki; Wakabayashi, Tomohiro; Takushima, Yuichi; Yan, Jiwang.

In: Precision Engineering, Vol. 57, 01.05.2019, p. 244-252.

Research output: Contribution to journalArticle

Kobayashi, Tomoki ; Wakabayashi, Tomohiro ; Takushima, Yuichi ; Yan, Jiwang. / Formation behavior of laser-induced periodic surface structures on stainless tool steel in various media. In: Precision Engineering. 2019 ; Vol. 57. pp. 244-252.
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