Nanosecond laser polishing of laser nitrided Zr-based metallic glass surface

doi:10.1007/s00170-022-09606-1

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	Nanosecond laser polishing of laser nitrided Zr-based metallic glass surface
	H. Huang; J. Hong; Y. F. Qian; C. Wang; Z. Y. Zhang and L. Zhang
	2022
发表期刊	International Journal of Advanced Manufacturing Technology
ISSN	0268-3768
卷号	121 期号:5-6 页码:4099-4113
摘要	Nanosecond pulsed laser nitriding is a promising technique for improving the surface hardness of Zr-based metallic glass (MG). However, being different from conventional surface enhancement methods, this method generally results in irregular surface profile and poor surface roughness, which impedes its potential industrial applications and popularization. Here, nanosecond laser polishing (LP), as a novel post-machining flattening approach, is introduced to flatten the laser nitrided Zr-based MG surface. The effects of the LP parameters, i.e., laser power, scanning speed, and track overlap, on the micro-topography and surface roughness (Sa and Sq) of the laser nitrided MG surface are systematically investigated, as well as the surface hardness variation. Compared with the laser nitrided Zr-based MG surface, homogeneous surface morphologies are achieved by LP with a remarkable reduction on surface roughness (Sa) by 93.7%, 72.9%, and 84.6% on three demonstrated laser nitrided MG surfaces. Most of the defects occurred in laser nitriding are removed under the optimal LP conditions. According to the residual micro-morphology on the LP surface, two kinds of mechanisms in LP are discussed. This study demonstrates that LP is an important alternative to effectively improve the surface roughness and mechanical performance of laser nitrided Zr-based MG, which would be meaningful and significant for the functional applications of MG in bio-chemical and anti-corrosion interface.
DOI	10.1007/s00170-022-09606-1
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收录类别	sci ; ei
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/181722/66893
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	H. Huang,J. Hong,Y. F. Qian,et al. Nanosecond laser polishing of laser nitrided Zr-based metallic glass surface[J]. International Journal of Advanced Manufacturing Technology,2022,121(5-6):4099-4113.
APA	H. Huang,J. Hong,Y. F. Qian,C. Wang,&Z. Y. Zhang and L. Zhang.(2022).Nanosecond laser polishing of laser nitrided Zr-based metallic glass surface.International Journal of Advanced Manufacturing Technology,121(5-6),4099-4113.
MLA	H. Huang,et al."Nanosecond laser polishing of laser nitrided Zr-based metallic glass surface".International Journal of Advanced Manufacturing Technology 121.5-6(2022):4099-4113.

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