Microstructures and mechanical properties of Zr-based metallic glass ablated by nanosecond pulsed laser in various gas atmospheres

doi:10.1016/j.jallcom.2022.163717

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	Microstructures and mechanical properties of Zr-based metallic glass ablated by nanosecond pulsed laser in various gas atmospheres
	Y. F. Qian; M. Q. Jiang; Z. Y. Zhang; H. Huang; J. Hong and J. W. Yan
刊名	Journal of Alloys and Compounds
	2022
卷号	901 页码:9
ISSN号	0925-8388
DOI	10.1016/j.jallcom.2022.163717
英文摘要	The surface with micro-convex prepared by laser ablation is beneficial to improving the functional properties of metallic glasses (MGs). However, accompanied by the formation of micro-convex, surface hardness of the ablated area generally decreases due to the softening effect caused by laser thermal shock. Previous studies have shown that the mechanical properties of laser-ablated MG surface are significantly different when using different gas atmospheres. In this study, a comparative investigation was performed to analyze the influence of gas atmosphere (i.e. argon, nitrogen, and air) on the formation of micro-convex as well as its surface characteristics and mechanical properties. Experimental results showed that the atmosphere type did not affect the formation of micro-convex, but significantly affected the surface morphology and element composition of the laser-ablated area. The element analysis and Raman spectral measurements indicated that laser ablation in nitrogen or air atmosphere resulted in local nitridation or oxidation. The results of nanoindentation tests demonstrated that laser ablation in nitrogen or air atmosphere also resulted in surface hardness inhomogeneity, i.e., softening and hardening effects coexist in the ablated area, which could be attributed to the combined influence of laser thermal shock, the introduction of secondary phase as well as laser ablation induced loose structure. (c) 2022 Elsevier B.V. All rights reserved.
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语种	英语
内容类型	期刊论文
源URL	[http://ir.ciomp.ac.cn/handle/181722/66843]
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	Y. F. Qian,M. Q. Jiang,Z. Y. Zhang,et al. Microstructures and mechanical properties of Zr-based metallic glass ablated by nanosecond pulsed laser in various gas atmospheres[J]. Journal of Alloys and Compounds,2022,901:9.
APA	Y. F. Qian,M. Q. Jiang,Z. Y. Zhang,H. Huang,&J. Hong and J. W. Yan.(2022).Microstructures and mechanical properties of Zr-based metallic glass ablated by nanosecond pulsed laser in various gas atmospheres.Journal of Alloys and Compounds,901,9.
MLA	Y. F. Qian,et al."Microstructures and mechanical properties of Zr-based metallic glass ablated by nanosecond pulsed laser in various gas atmospheres".Journal of Alloys and Compounds 901(2022):9.