Laser shock peening rounds influencing microstructural and mechanical properties of 300M steel
Xiong, Yi; Zhou, Tian; Chen, Zheng-ge; Wu, Yong-li; Zha, Xiao-qin; Li, Yong; Wang, Shu-bo; Singh, Harishchandra; Huttula, Marko; Cao, Wei (2023-04-04)
Yi Xiong, Tian Zhou, Zheng-ge Chen, Yong-li Wu, Xiao-qin Zha, Yong Li, Shu-bo Wang, Harishchandra Singh, Marko Huttula & Wei Cao (2023) Laser shock peening rounds influencing microstructural and mechanical properties of 300M steel, Materials Science and Technology, 39:16, 2217-2229, DOI: 10.1080/02670836.2023.2196472
This is an Accepted Manuscript of an article published by Taylor & Francis in Materials Science and Technology on 04 Apr 2023, available online: https://doi.org/10.1080/02670836.2023.2196472. It is deposited under the terms of the Creative Commons Attribution-NonCommercial License (http://creativecommons.org/licenses/by-nc/4.0/), which permits non-commercial re-use, distribution, and reproduction in any medium, provided the original work is properly cited.
https://creativecommons.org/licenses/by-nc/4.0/
https://urn.fi/URN:NBN:fi-fe2023041937550
Tiivistelmä
Abstract
Laser shock peeing (LSP) was introduced to produce surface gradient structures on 300M steel to improve its performance, service life and related workpiece safety. The influences of LSP rounds on microstructural and mechanical properties were investigated to optimise the LSP processing. Smoother surface, surface nanocystallization, and gradient structure, hardness, compressive residue stress was observed LSP. Strength and plasticity of 300M steel improved significantly due to the surface changes induced by one round of LSP. However, excessive LSP rounds tend to deteriorate the surface roughness and mechanical properties despite increased surface nanocrystallization, hardening zone depth and compressive residual stress.
Kokoelmat
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