Nanosecond laser coloration on stainless steel surface

Yan Lu; Xinying Shi; Zhongjia Huang; Taohai Li; Meng Zhang; Jakub Czajkowski; Tapio Fabritius; Marko Huttula; Wei Cao

doi:10.1038/s41598-017-07373-8

Scientific Reports (Aug 2017)

Nanosecond laser coloration on stainless steel surface

Yan Lu,
Xinying Shi,
Zhongjia Huang,
Taohai Li,
Meng Zhang,
Jakub Czajkowski,
Tapio Fabritius,
Marko Huttula,
Wei Cao

Affiliations

Yan Lu: School of Materials Science and Engineering, Henan University of Science and Technology
Xinying Shi: Nano and Molecular Systems Research Unit, University of Oulu, P.O. Box 3000
Zhongjia Huang: School of Mechanical and Automotive Engineering, Anhui Polytechnic University
Taohai Li: College of Chemistry, Key Lab of Environment Friendly Chemistry and Application in Ministry of Education, Xiangtan University, Yuhu District
Meng Zhang: Department of Physics, East China University of Science and Technology
Jakub Czajkowski: Optoelectronics and Measurement Techniques Research Unit, University of Oulu, P.O. Box 4500
Tapio Fabritius: Optoelectronics and Measurement Techniques Research Unit, University of Oulu, P.O. Box 4500
Marko Huttula: Nano and Molecular Systems Research Unit, University of Oulu, P.O. Box 3000
Wei Cao: Nano and Molecular Systems Research Unit, University of Oulu, P.O. Box 3000

DOI: https://doi.org/10.1038/s41598-017-07373-8
Journal volume & issue: Vol. 7, no. 1
pp. 1 – 8

Abstract

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Abstract In this work, we present laser coloration on 304 stainless steel using nanosecond laser. Surface modifications are tuned by adjusting laser parameters of scanning speed, repetition rate, and pulse width. A comprehensive study of the physical mechanism leading to the appearance is presented. Microscopic patterns are measured and employed as input to simulate light-matter interferences, while chemical states and crystal structures of composites to figure out intrinsic colors. Quantitative analysis clarifies the final colors and RGB values are the combinations of structural colors and intrinsic colors from the oxidized pigments, with the latter dominating. Therefore, the engineering and scientific insights of nanosecond laser coloration highlight large-scale utilization of the present route for colorful and resistant steels.

Published in Scientific Reports

ISSN: 2045-2322 (Online)
Publisher: Nature Portfolio
Country of publisher: United Kingdom
LCC subjects: Medicine; Science
Website: https://www.nature.com/srep/

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