Surface modification of stainless steel by laser-induced wet treatment in aluminum nitrate solution

Atsushi Ezura; Hikaru Yoshimine; Kazutoshi Katahira; Jun Komotori

doi:10.2493/jjspe.83.72

Surface modification of stainless steel by laser-induced wet treatment in aluminum nitrate solution

Atsushi Ezura, Hikaru Yoshimine, Kazutoshi Katahira, Jun Komotori

Department of Mechanical Engineering

Research output: Contribution to journal › Article › peer-review

1 Citation (Scopus)

Abstract

A laser-induced wet treatment was conducted on the stainless steel (SUS316L) surfaces. The disk-shaped samples were soaked in an aluminum nitrate solution and subsequently irradiated by a Yb fiber pulsed laser beam. The treated surfaces were observed with a scanning electron microscope, and analyzed with an energy dispersive X-ray spectrometer and X-ray diffraction. It was confirmed that the proposed treatment generated an Al- and O-rich layer, which was identified as Fe²⁺Al₂O₄ structure. The thickness of the generated layer increased with increasing the Al concentration of solution, increasing laser power and decreasing laser scan rate.

Original language	English
Pages (from-to)	72-77
Number of pages	6
Journal	Seimitsu Kogaku Kaishi/Journal of the Japan Society for Precision Engineering
Volume	83
Issue number	1
DOIs	https://doi.org/10.2493/jjspe.83.72
Publication status	Published - 2017

Keywords

Al(NO) solution
Fiber laser
Local processing
SUS316L
Surface treatment

ASJC Scopus subject areas

Mechanical Engineering

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title = "Surface modification of stainless steel by laser-induced wet treatment in aluminum nitrate solution",

abstract = "A laser-induced wet treatment was conducted on the stainless steel (SUS316L) surfaces. The disk-shaped samples were soaked in an aluminum nitrate solution and subsequently irradiated by a Yb fiber pulsed laser beam. The treated surfaces were observed with a scanning electron microscope, and analyzed with an energy dispersive X-ray spectrometer and X-ray diffraction. It was confirmed that the proposed treatment generated an Al- and O-rich layer, which was identified as Fe2+Al2O4 structure. The thickness of the generated layer increased with increasing the Al concentration of solution, increasing laser power and decreasing laser scan rate.",

keywords = "Al(NO) solution, Fiber laser, Local processing, SUS316L, Surface treatment",

author = "Atsushi Ezura and Hikaru Yoshimine and Kazutoshi Katahira and Jun Komotori",

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AU - Ezura, Atsushi

AU - Yoshimine, Hikaru

AU - Katahira, Kazutoshi

AU - Komotori, Jun

PY - 2017

Y1 - 2017

N2 - A laser-induced wet treatment was conducted on the stainless steel (SUS316L) surfaces. The disk-shaped samples were soaked in an aluminum nitrate solution and subsequently irradiated by a Yb fiber pulsed laser beam. The treated surfaces were observed with a scanning electron microscope, and analyzed with an energy dispersive X-ray spectrometer and X-ray diffraction. It was confirmed that the proposed treatment generated an Al- and O-rich layer, which was identified as Fe2+Al2O4 structure. The thickness of the generated layer increased with increasing the Al concentration of solution, increasing laser power and decreasing laser scan rate.

AB - A laser-induced wet treatment was conducted on the stainless steel (SUS316L) surfaces. The disk-shaped samples were soaked in an aluminum nitrate solution and subsequently irradiated by a Yb fiber pulsed laser beam. The treated surfaces were observed with a scanning electron microscope, and analyzed with an energy dispersive X-ray spectrometer and X-ray diffraction. It was confirmed that the proposed treatment generated an Al- and O-rich layer, which was identified as Fe2+Al2O4 structure. The thickness of the generated layer increased with increasing the Al concentration of solution, increasing laser power and decreasing laser scan rate.

KW - Al(NO) solution

KW - Fiber laser

KW - Local processing

KW - SUS316L

KW - Surface treatment

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