Numerical Simulation on Pulsed Laser Ablation of the Single-Crystal Superalloy Considering Material Moving Front and Effect of Comprehensive Heat Dissipation

doi:10.3390/mi12020225

	Numerical Simulation on Pulsed Laser Ablation of the Single-Crystal Superalloy Considering Material Moving Front and Effect of Comprehensive Heat Dissipation
	Wang, Bin 3,4; Huang, Yihui 3; Jiao, Junke 3; Wang, Hao 1; Wang, Ji 3; Zhang, Wenwu 3; Sheng, Liyuan 2
刊名	MICROMACHINES
	2021-02-01
卷号	12
关键词	pulsed laser ablation numerical simulation material moving front heat dissipation DD6 single-crystal superalloy
DOI	10.3390/mi12020225
通讯作者	Huang, Yihui(huangyihui@nimte.ac.cn) ; Sheng, Liyuan(lysheng@yeah.net)
英文摘要	In the present research, an iterative numerical model is proposed to investigate the nanosecond pulsed laser ablation (PLA) mechanism of the DD6 single-crystal superalloy. In the numerical model, two subroutines are introduced to trace the moving boundary and update the thermal load. The iteration between the main governing equation and the two subroutines enables the PLA numerical simulation to consider material moving front and effect of comprehensive heat dissipation including thermal convection and radiation. The basic experimental results exhibit a good agreement with simulation results which indicates the good accuracy of the simulation model. Therefore, the PLA mechanism of the DD6 single-crystal superalloy is studied base on the improved iterative model, which indicates the evolution of temperature field, ablation zone morphology, formation of recast layer and heat-affected zone are closely related with time. The temperature of the laser spot center increases sharply at the first stage, reaching a maximum value of 5252 K, and then decreases gradually. The thermal dissipation postpones the ablation rate but promotes the formation of a recast layer and heat-affected zone. Due to the evaporation and thermal dissipation, the depth of the molten layer exhibits two rapid increasing stages. The comprehensive analysis of the PLA processing by the improved simulation model helps the understanding of the intrinsic mechanism, which would contribute to the further optimizing parameters of PLA fabrication of the DD6 single-crystal superalloy.
资助项目	Natural Science Foundation of Guangdong Province, China[2020A151501305] ; Natural Science Foundation of Guangdong Province, China[2018A030313950] ; Shenzhen Basic Research Project[JCYJ20200109144604020] ; Shenzhen Basic Research Project[JCYJ20200109144608205]
WOS研究方向	Chemistry ; Science & Technology - Other Topics ; Instruments & Instrumentation ; Physics
语种	英语
出版者	MDPI
WOS记录号	WOS:000622814900001
资助机构	Natural Science Foundation of Guangdong Province, China ; Shenzhen Basic Research Project
内容类型	期刊论文
源URL	[http://ir.hfcas.ac.cn:8080/handle/334002/120367]
专题	中国科学院合肥物质科学研究院
通讯作者	Huang, Yihui; Sheng, Liyuan
作者单位	1.Ruhr Univ Bochum, Chair Appl Laser Technol, D-44801 Bochum, Germany 2.PKU HKUST ShenZhen HongKong Inst, Labortary Adv Mat & Proc, Shenzhen 518057, Peoples R China 3.Univ Chinese Acad Sci, Ningbo Inst Mat Technol & Engn, Inst Adv Mfg Technol, Ningbo 315201, Peoples R China 4.Univ Chinese Acad Sci, Coll Mat Sci & Optoelect Technol, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Wang, Bin,Huang, Yihui,Jiao, Junke,et al. Numerical Simulation on Pulsed Laser Ablation of the Single-Crystal Superalloy Considering Material Moving Front and Effect of Comprehensive Heat Dissipation[J]. MICROMACHINES,2021,12.
APA	Wang, Bin.,Huang, Yihui.,Jiao, Junke.,Wang, Hao.,Wang, Ji.,...&Sheng, Liyuan.(2021).Numerical Simulation on Pulsed Laser Ablation of the Single-Crystal Superalloy Considering Material Moving Front and Effect of Comprehensive Heat Dissipation.MICROMACHINES,12.
MLA	Wang, Bin,et al."Numerical Simulation on Pulsed Laser Ablation of the Single-Crystal Superalloy Considering Material Moving Front and Effect of Comprehensive Heat Dissipation".MICROMACHINES 12(2021).