University of Oulu

Lu, Y., Shi, X., Huang, Z., Li, T., Zhang, M., Czajkowski, J., Fabritius, T., Huttula, M., Cao, W. (2017) Nanosecond laser coloration on stainless steel surface. Scientific Reports, 7 (1). doi:DOI:10.1038/s41598-017-07373-8

Nanosecond laser coloration on stainless steel surface

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Author: Lu, Yan1,2; Shi, Xinying2; Huang, Zhongjia3;
Organizations: 1School of Materials Science and Engineering, Henan University of Science and Technology, Luoyang, 471023, China
2Nano and Molecular Systems Research Unit, University of Oulu, P.O. Box 3000, FIN-90014, Oulu, Finland
3School of Mechanical and Automotive Engineering, Anhui Polytechnic University, Wuhu, 241000, China
4College of Chemistry, Key Lab of Environment Friendly Chemistry and Application in Ministry of Education, Xiangtan University, Yuhu District, Xiangtan, 411105, China
5Department of Physics, East China University of Science and Technology, Meilong Road 130, Shanghai, 200237, China
6Optoelectronics and Measurement Techniques Research Unit, University of Oulu, P.O. Box 4500, FIN-90014, Oulu, Finland
Format: article
Version: published version
Access: open
Online Access: PDF Full Text (PDF, 1.5 MB)
Persistent link:
Language: English
Published: Springer Nature, 2017
Publish Date: 2017-08-14


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.

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Series: Scientific reports
ISSN: 2045-2322
ISSN-E: 2045-2322
ISSN-L: 2045-2322
Volume: 7
Issue: 1
Pages: 1 - 8
Article number: 7092
DOI: 10.1038/s41598-017-07373-8
Type of Publication: A1 Journal article – refereed
Field of Science: 114 Physical sciences
Funding: This work is financially supported by Oulu University Strategic Grant, and the Academy of Finland. Y.L. acknowledges the supports from the National Natural Science Foundation of China (Grant No. 51201061), International Cooperation Project from Henan Province (Grant No. 172102410032), and Science and Technology Innovation Team of Henan University of Science and Technology (2015XTD006).
Dataset Reference: The datasets generated during and/or analysed during the current study are available from the corresponding author on reasonable request.
Copyright information: © The Author(s) 2017. This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit