A comparative study on mechanical polishing and laser polishing of laser-nitrided Zr-based metallic glass surface

doi:10.1007/s00170-022-10529-0

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	A comparative study on mechanical polishing and laser polishing of laser-nitrided Zr-based metallic glass surface
	J. Hong; L. Zhang; Z. Y. Zhang; H. Huang and J. W. Yan
	2022
发表期刊	International Journal of Advanced Manufacturing Technology
ISSN	0268-3768
页码	13
摘要	As a promising surface modification method, nanosecond pulsed laser nitriding has been widely employed in enhancing the surface hardness and chemical corrosion of Zr-based metallic glass (MG). However, laser nitriding generally leads to poor finished surface quality, limiting its potential applications. For flattening the laser-nitrided surface, the most common methods, i.e., mechanical polishing (MP) and a novel proposed flattening approach, laser polishing (LP), were comparatively studied. A systematical comparison between MP and LP on three types of laser-nitrided surfaces was performed to evaluate the surface roughness, surface hardness, and plastic deformation. The experimental results indicate that the surface roughness of these three laser-nitrided surfaces is reduced by 56.4%, 58.1%, and 44.6% by MP. In contrast, a remarkable improvement in the surface quality is achieved with a maximum reduction in surface roughness by 80.4%, 81.5%, and 74.2% by LP, respectively. While in terms of the surface mechanical properties, the LP surfaces exhibit slightly lower hardness than the corresponding MP surfaces, which are both enhanced in hardness compared with as-cast MG. Additionally, no matter on the MP or LP surfaces, the shear bands and serrated flows have been significantly suppressed compared with as-cast MG, demonstrating that the micro-scale plastic deformation of as-cast MG has been modified. Although the obtained results indicate that the surface roughness of the laser-nitrided surface could be improved by both MP and LP, in terms of environmental friendliness, flexibility, and controllability, the LP shows dominant advantages and enormous potential in industry and consumer products.
DOI	10.1007/s00170-022-10529-0
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收录类别	sci
语种	英语
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文献类型	期刊论文
条目标识符	http://ir.ciomp.ac.cn/handle/181722/66477
专题	中国科学院长春光学精密机械与物理研究所
推荐引用方式 GB/T 7714	J. Hong,L. Zhang,Z. Y. Zhang,et al. A comparative study on mechanical polishing and laser polishing of laser-nitrided Zr-based metallic glass surface[J]. International Journal of Advanced Manufacturing Technology,2022:13.
APA	J. Hong,L. Zhang,Z. Y. Zhang,&H. Huang and J. W. Yan.(2022).A comparative study on mechanical polishing and laser polishing of laser-nitrided Zr-based metallic glass surface.International Journal of Advanced Manufacturing Technology,13.
MLA	J. Hong,et al."A comparative study on mechanical polishing and laser polishing of laser-nitrided Zr-based metallic glass surface".International Journal of Advanced Manufacturing Technology (2022):13.

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