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Ma, Y., Xiong, Y., Chen, Z., Zha, X., He, T., Li, Y., Pallaspuro, S., Wang, S., Huttula, M., & Cao, W. (2022). Effect of surface nanocrystallization produced by laser shock processing on the corrosion fatigue behavior of 300M steel. Surface and Coatings Technology, 439, 128426. https://doi.org/10.1016/j.surfcoat.2022.128426

Effect of surface nanocrystallization produced by laser shock processing on the corrosion fatigue behavior of 300M steel

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Author: Ma, Yun-fei1; Xiong, Yi1,2; Chen, Zheng-ge3;
Organizations: 1School of Materials Science and Engineering, Henan University of Science and Technology, Luoyang 471023, China
2Collaborative innovation center of new nonferrous metal materials and advanced processing technology jointly established by the Ministry of science and technology, Luoyang 471023, Henan, China
3State Key Laboratory of Laser Interaction with Matter, Northwest Institute of Nuclear Technology, Xi'an 710024, China
4Luoyang Ship Material Research Institute, Luoyang 471000, China
5Central Iron and Steel Research Institute, Beijing 100081, China
6Materials and Mechanical Engineering, Center for Advanced Steels Research, University of Oulu, FIN-90014, Finland
7Nano and Molecular Systems Research Unit, University of Oulu, FIN-90014, Finland
Format: article
Version: accepted version
Access: embargoed
Persistent link: http://urn.fi/urn:nbn:fi-fe2022061446288
Language: English
Published: Elsevier, 2022
Publish Date: 2024-06-15
Description:

Abstract

The effect of surface nanocrystallization produced by laser shock processing (LSP) on the corrosion fatigue behavior of 300M steel was systematically investigated. The surface integrity, microstructure evolution and residual stresses before and after corrosion fatigue were characterized. The results showed that afte LSP the surface grain size of 300M steel was sufficiently refined down to nanoscale after LSP, and a large residual compressive stress formed. Under the same loading stress level, the corrosion fatigue life of LSP-treated 300M steel was improved significantly. This improvement increased with increase of LSP pulse energy. After corrosion fatigue, the surface grain of LSP-treated 300M steel remained at the nanoscale, showing a good stability. The dislocation density and the number of deformation twins in the subsurface layer became higher with increase of LSP pulse energy to accommodate deformation. Surface residual compressive stress induced by LSP has a relaxation during corrosion fatigue, depending on the laser pulse energy and fatigue loading force.

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Series: Surface & coatings technology
ISSN: 0257-8972
ISSN-E: 1879-3347
ISSN-L: 0257-8972
Volume: 439
Article number: 128426
DOI: 10.1016/j.surfcoat.2022.128426
OADOI: https://oadoi.org/10.1016/j.surfcoat.2022.128426
Type of Publication: A1 Journal article – refereed
Field of Science: 216 Materials engineering
Subjects:
300M steel
Corrosion fatigue
Laser shock processing
Microstructural evolution
Residual stress relaxation
Surface nanocrystallization
Article
Funding: The authors gratefully acknowledge the support from the National Natural Science Foundation of China [Grant No. U1804146, 52111530068, and 51905153]; the Science and Technology Innovation Team of Henan University of Science and Technology [Grant No. 2015XTD006]; the Foreign Experts Introduction Project of Henan Province [Grant No. HNGD2020009]; and the Academy of Finland [Grant No. 311934].
Copyright information: © 2022. This manuscript version is made available under the CC-BY-NC-ND 4.0 license http:/creativecommons.org/licenses/by-nc-nd/4.0/
  https://creativecommons.org/licenses/by-nc-nd/4.0/