University of Oulu

Luo, G., Zhang, L., Xiong, Y., Zhang, B., Chen, X., Wu, Y., Wang, S., & Cao, W. (2022). Effect of laser shock peening on the corrosion properties of Ti-6Al-3Nb-2Zr-1Mo alloy. Surface and Coatings Technology, 440, 128425.

Effect of laser shock peening on the corrosion properties of Ti-6Al-3Nb-2Zr-1Mo alloy

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Author: Luo, Gaoli1; Zhang, Lingfeng1,2; Xiong, Yi1,2;
Organizations: 1School of Materials Science and Engineering, Henan University of Science and Technology, Luoyang 471023, Henan, China
2Provincial and Ministerial Co-construction of Collaborative Innovation Center for Non-ferrous Metal New Materials and Advanced Processing Technology, Luoyang 471023, Henan, China
3School of Mechanical Engineering, Huanghe S & T University, Zhengzhou 450063, Henan, China
4Nano and Molecular Systems Research Unit, University of Oulu, FIN-90014, Finland
Format: article
Version: accepted version
Access: embargoed
Persistent link:
Language: English
Published: Elsevier, 2022
Publish Date: 2024-06-25


The surface treatment of Ti80 alloy with different microstructures was performed by laser shock peening (LSP), and the effect of LSP on Ti80 alloy on microstructure and corrosion properties was investigated. After LSP, the surface grains of Ti80 alloy with different microstructures were all refined, microhardness was significantly increased, and compressive residual stress was generated, and both microhardness and compressive residual stress showed gradient change characteristics along the layer depth. The corrosion resistance of Ti80 alloy with different microstructures was improved in both 3.5% NaCl solution and 5MHCL solution after LSP. Before LSP, the corrosion resistance of lamellar microstructure was the best, followed by bimodal microstructure and the worst by equiaxial microstructure, while the corrosion resistance of equiaxial microstructure exceeded that of bimodal microstructure under the combined effect of volume fraction of β phase, thickness of α phase and compressive residual stress after LSP.

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Series: Surface & coatings technology
ISSN: 0257-8972
ISSN-E: 1879-3347
ISSN-L: 0257-8972
Volume: 440
Article number: 128425
DOI: 10.1016/j.surfcoat.2022.128425
Type of Publication: A1 Journal article – refereed
Field of Science: 213 Electronic, automation and communications engineering, electronics
Funding: Authors want to thank the assistance from the National Natural Science Foundation of China (Nos. U1804146, and 52111530068).
Copyright information: © 2022. This manuscript version is made available under the CC-BY-NC-ND 4.0 license http:/