Simultaneous analysis of long-pulse laser irradiated plasma-facing materials (PFMs) microstructure and hardness by in-situ laser Opto-ultrasonic dual detection (LOUD)

doi:10.1016/j.optlastec.2022.108741

	Simultaneous analysis of long-pulse laser irradiated plasma-facing materials (PFMs) microstructure and hardness by in-situ laser Opto-ultrasonic dual detection (LOUD)
	Sattar, Harse 1; Ran, Hai 4; Hu, Zhenlin 3; Guan, Feiyu 3; Imran, Muhammad 2; Guo, Lianbo 3; Luo, Wei 1; Ding, Hongbin 4
刊名	OPTICS AND LASER TECHNOLOGY
	2023
卷号	157
关键词	LOUD LIBS Grain size Hardness Plasma electron temperature(Te) Acoustic attenuation(?)
ISSN号	0030-3992
DOI	10.1016/j.optlastec.2022.108741
通讯作者	Guo, Lianbo(lbguo@hust.edu.cn) ; Luo, Wei(luowei@hust.edu.cn) ; Ding, Hongbin(hding@dlut.edu.cn)
英文摘要	Laser-induced transient heat load events such as edge localized mode (ELM) could induce recrystallization, grain growth, surface degradation, and hardness changes. In this regard, we used the long-pulse laser beams with power densities ranging from 0.165 to 1.909 GW m- 2 to simulate transient heat load events for pure tungsten and tungsten heavy alloy (WHA) materials. The investigated samples showed that pure tungsten exhibited a higher recrystallization threshold, steady grain growth, and less surface hardness deterioration than WHA. However, the real-time simultaneous analysis of structural and mechanical properties such as matrix elements, grain size, surface degradation, and hardness changes is challenging in this domain. Therefore, in this study, we utilized a novel laser Opto-ultrasonic dual detection (LOUD) multimodal technique that integrates the benefits of laser-induced breakdown spectroscopy (LIBS) and laser ultrasonic testing (LUT) for simultaneous and in-situ detection of elemental information, grain size and hardness. The preliminary results showed that the variation in hardness is well correlated with the LIBS calibration curve formed by the ionic to atomic line intensity ratio and plasma electron temperature (Te). Despite the different matrix compositions of both samples, the observed in-crease in the value of Te with hardness justifies the Saha-Eggert relation. The coefficient of determination (R2 >= 0.970) value in the calibration curve and Te for hardness evaluation showed the goodness of the fitted model. Furthermore, the correlation of grain size with ultrasonic acoustic attenuation (alpha) was analyzed by the pulse-echo technique of the ultrasonic waveform for investigated samples. The results showed that grain size is also directly associated with acoustic attenuation with R2 > 0.989. The findings showed that the regression coefficient has a good approximation, which demonstrates the preciseness and potential ability of the LOUD technique for in-situ grain size and hardness analysis.
资助项目	National Natural Science Foundation of China ; National MCF Energy R&D Program of China ; National Key Research and Development Program of China ; ChinaPostdoctoral Science Foundation ; [62250410363,51837008] ; [11861131010] ; [11705020] ; [11405022] ; [11605023] ; [2019YFE03080100] ; [2018YFA0702100] ; [2018M630285]
WOS关键词	INDUCED BREAKDOWN SPECTROSCOPY ; DYNAMIC DEFORMATION ; SURFACE HARDNESS ; TUNGSTEN ; ALLOYS ; TEMPERATURE
WOS研究方向	Optics ; Physics
语种	英语
出版者	ELSEVIER SCI LTD
WOS记录号	WOS:000872378300002
资助机构	National Natural Science Foundation of China ; National MCF Energy R&D Program of China ; National Key Research and Development Program of China ; ChinaPostdoctoral Science Foundation
内容类型	期刊论文
源URL	[http://ir.hfcas.ac.cn:8080/handle/334002/129486]
专题	中国科学院合肥物质科学研究院
通讯作者	Guo, Lianbo; Luo, Wei; Ding, Hongbin
作者单位	1.Huazhong Univ Sci & Technol, Sch Opt & Elect Informat, Wuhan 430074, Hubei, Peoples R China 2.Chinese Acad Sci, Inst Plasma Phys, Hefei 23003, Peoples R China 3.Huazhong Univ Sci & Technol, Wuhan Natl Lab Optoelect WNLO, Wuhan 430074, Hubei, Peoples R China 4.Dalian Univ Technol, Sch Phys, Key Lab Mat Modificat Laser Ion & Electron Beams, Chinese Minist Educ, Dalian 116024, Peoples R China
推荐引用方式 GB/T 7714	Sattar, Harse,Ran, Hai,Hu, Zhenlin,et al. Simultaneous analysis of long-pulse laser irradiated plasma-facing materials (PFMs) microstructure and hardness by in-situ laser Opto-ultrasonic dual detection (LOUD)[J]. OPTICS AND LASER TECHNOLOGY,2023,157.
APA	Sattar, Harse.,Ran, Hai.,Hu, Zhenlin.,Guan, Feiyu.,Imran, Muhammad.,...&Ding, Hongbin.(2023).Simultaneous analysis of long-pulse laser irradiated plasma-facing materials (PFMs) microstructure and hardness by in-situ laser Opto-ultrasonic dual detection (LOUD).OPTICS AND LASER TECHNOLOGY,157.
MLA	Sattar, Harse,et al."Simultaneous analysis of long-pulse laser irradiated plasma-facing materials (PFMs) microstructure and hardness by in-situ laser Opto-ultrasonic dual detection (LOUD)".OPTICS AND LASER TECHNOLOGY 157(2023).