Laser polishing and simultaneous hardening of the electrical discharge machined Zr-based metallic glass surface

doi:10.1016/j.matdes.2023.112599

CORC > 力学研究所 > 中国科学院力学研究所 > 非线性力学国家重点实验室

	Laser polishing and simultaneous hardening of the electrical discharge machined Zr-based metallic glass surface
	Hong, Jing 5; Huang, Hu 5; Zhang, Lin 4; Zhang, Zhiyu 3; Jiang, Minqiang 1,2; Yan, Jiwang 4
刊名	MATERIALS & DESIGN
	2024
卷号	237 页码:18
关键词	Laser polishing Surface hardening Nanosecond pulsed laser Metallic glass Simulation analysis
ISSN号	0264-1275
DOI	10.1016/j.matdes.2023.112599
通讯作者	Huang, Hu(huanghu@jlu.edu.cn)
英文摘要	Wire electrical discharge machining (WEDM) is highly suitable for processing the hard-brittle materials like metallic glasses (MGs). However, the electro-thermal energy conversion involved in the WEDM process inevitably introduces some surface defects including bulges, discharge craters, and recast materials on the WEDMed MG surface, which significantly impedes its practical application. Here, an emerging automated polishing technology, laser polishing (LP), was performed in the nitrogen-rich environment to simultaneously improve the surface quality and hardness of the WEDMed Zr-based MG surface. The detailed effects of LP parameters on the surface roughness and morphology were systematically investigated. The morphology evolution and temperature distribution of the molten pool during LP were analyzed by simulation analysis. The experimental results indicated that after single LP of four representative WEDMed Zr-based MG surfaces using the optimized laser parameters, the surface roughness (Sa) was remarkably reduced from 1.27, 2.10, 3.49, and 4.58 mu m to 0.09, 0.14, 0.17, and 0.21 mu m, respectively, accompanied by an increase in surface hardness from 6.30 GPa to 7.39, 7.67, 8.51 and 8.99 GPa. This study demonstrated that LP could effectively achieve simultaneous enhancement of the quality and hardness of WEDMed MG surfaces, which would contribute to expanding the application prospects of MGs.
资助项目	Natural Science Foundation of Jilin Province[20220101198JC] ; National Outstanding Youth Science Fund Project of NSFC[12125206] ; Fundamental Research Funds for the Central Universities
WOS关键词	MECHANICAL-PROPERTIES ; TI-6AL-4V ALLOY ; RECAST LAYER ; TOOL WEAR ; BEHAVIOR ; MICROSTRUCTURE ; PERFORMANCE ; SPECIMENS ; SHOCK
WOS研究方向	Materials Science
语种	英语
WOS记录号	WOS:001166016800001
资助机构	Natural Science Foundation of Jilin Province ; National Outstanding Youth Science Fund Project of NSFC ; Fundamental Research Funds for the Central Universities
内容类型	期刊论文
源URL	[http://dspace.imech.ac.cn/handle/311007/94418]
专题	力学研究所_非线性力学国家重点实验室
通讯作者	Huang, Hu
作者单位	1.Univ Chinese Acad Sci, Sch Engn Sci, Beijing 100049, Peoples R China 2.Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech, Beijing 100190, Peoples R China 3.Chinese Acad Sci, Changchun Inst Opt Fine Mech & Phys, Key Lab Opt Syst Adv Mfg Technol, Changchun, Peoples R China 4.Keio Univ, Fac Sci & Technol, Dept Mech Engn, Yokohama 2238522, Japan 5.Jilin Univ, Sch Mech & Aerosp Engn, Key Lab CNC Equipment Reliabil, Minist Educ, Changchun 130022, Jilin, Peoples R China
推荐引用方式 GB/T 7714	Hong, Jing,Huang, Hu,Zhang, Lin,et al. Laser polishing and simultaneous hardening of the electrical discharge machined Zr-based metallic glass surface[J]. MATERIALS & DESIGN,2024,237:18.
APA	Hong, Jing,Huang, Hu,Zhang, Lin,Zhang, Zhiyu,Jiang, Minqiang,&Yan, Jiwang.(2024).Laser polishing and simultaneous hardening of the electrical discharge machined Zr-based metallic glass surface.MATERIALS & DESIGN,237,18.
MLA	Hong, Jing,et al."Laser polishing and simultaneous hardening of the electrical discharge machined Zr-based metallic glass surface".MATERIALS & DESIGN 237(2024):18.