Effect of water medium on material removal and sub-surface defect evolution in nano-cutting of single-crystal gamma-TiAl alloy

doi:10.1080/08927022.2021.1977297

CORC > 兰州理工大学 > 兰州理工大学 > 机电工程学院

	Effect of water medium on material removal and sub-surface defect evolution in nano-cutting of single-crystal gamma-TiAl alloy
	Li, Jianhua 2,3; Wei, Peng 2,3; Liu, Liqun 1; Cao, Hui 2,3; Shao, Zihao 2,3; Li, Haiyan 2,3; Lei, Chunli 2,3; Feng, Ruicheng 2,3
刊名	MOLECULAR SIMULATION
	2021-09
卷号	47 期号:17 页码:1433-1442
关键词	TiAl alloy water medium nano-cutting sub-surface defect evolution diffusion effect
ISSN号	0892-7022
DOI	10.1080/08927022.2021.1977297
英文摘要	In this paper, molecular dynamics (MD) simulation has been applied to study the influence of water medium on the nano-cutting process and the evolution of sub-surface defects of single-crystal gamma-TiAl alloy. The effect of water medium in the result of cutting force and cutting temperature have been analysed and discussed in the machining process, while the function of common neighbour analysis (CNA) method has been used to research the chip removal mechanism, sub-surface defects and crystal structure changes. The results showed that the extrusion and shear effects of tool removed atoms from the surface of the workpiece. In the meantime, the cooling and lubricating effect of the water medium reduces the cutting temperature and cutting force. Especially, the temperature of the workpiece has a diffusion effect in the cutting process in the absence of the water medium. Some heat was taken away by the water medium, which lead to insufficient nucleation and migration of the dislocation, and high compressive stress was formed during cutting of water-bearing medium.
WOS研究方向	Chemistry ; Physics
语种	英语
出版者	TAYLOR & FRANCIS LTD
WOS记录号	WOS:000695999500001
内容类型	期刊论文
源URL	[http://ir.lut.edu.cn/handle/2XXMBERH/148719]
专题	机电工程学院土木工程学院
作者单位	1.Zhuzhou Smelter Grp Co Ltd, Zhuzhou, Peoples R China 2.Lanzhou Univ Technol, Key Lab Digital Mfg Technol & Applicat, Minist Educ, Lanzhou, Peoples R China; 3.Lanzhou Univ Technol, Sch Mech & Elect Engn, Lanzhou, Peoples R China;
推荐引用方式 GB/T 7714	Li, Jianhua,Wei, Peng,Liu, Liqun,et al. Effect of water medium on material removal and sub-surface defect evolution in nano-cutting of single-crystal gamma-TiAl alloy[J]. MOLECULAR SIMULATION,2021,47(17):1433-1442.
APA	Li, Jianhua.,Wei, Peng.,Liu, Liqun.,Cao, Hui.,Shao, Zihao.,...&Feng, Ruicheng.(2021).Effect of water medium on material removal and sub-surface defect evolution in nano-cutting of single-crystal gamma-TiAl alloy.MOLECULAR SIMULATION,47(17),1433-1442.
MLA	Li, Jianhua,et al."Effect of water medium on material removal and sub-surface defect evolution in nano-cutting of single-crystal gamma-TiAl alloy".MOLECULAR SIMULATION 47.17(2021):1433-1442.