Experimental Study on Ultra-Precision Polishing of Ti-6Al-4V by Ultraviolet-Induced Nanoparticle Colloid Jet Machining

doi:10.3390/ma14175014

CORC > 兰州理工大学 > 兰州理工大学 > 机电工程学院

	Experimental Study on Ultra-Precision Polishing of Ti-6Al-4V by Ultraviolet-Induced Nanoparticle Colloid Jet Machining
	Song, Xiaozong; Wang, Xiaorong; Wang, Shun; Liu, Shengkai; Ge, Shundong
刊名	MATERIALS
	2021-09
卷号	14 期号:17
关键词	Ti-6Al-4V ultra-precision polishing ultraviolet-induced nanoparticle colloid jet machining surface quality surface residual stress
DOI	10.3390/ma14175014
英文摘要	Ti-6Al-4V is widely used in various fields of modern industry, but it is difficult to obtain an ultra-smooth surface of Ti-6Al-4V due to its poor machinability. In this article, ultraviolet-induced (UV-induced) nanoparticle colloid jet machining was utilized to carry out ultra-precision polishing of Ti-6Al-4V to improve the surface quality. The results of infrared differential spectroscopy before and after polishing show that new chemical bonds such as Ti-O-Ti (Al-O-Ti and V-O-Ti) appear on the Ti-6Al-4V workpiece surface, which indicates that the material of Ti-6Al-4V workpiece is removed through the chemical interaction between TiO2 nanoparticles and workpiece surface in the process of UV-induced nanoparticle colloid jet machining. The comparison of metallographic structure of Ti-6Al-4V before and after polishing shows that the chemical activity and material removal rate of the primary alpha phase in Ti-6Al-4V is higher than that of the remnant beta phase in UV-induced nanoparticle colloid jet machining, which lead to the well-distributed nano-scale surface peaks and valleys at regular intervals on the polished Ti-6Al-4V workpiece surface. After polishing, the longitudinal residual stress on the surface of Ti-6Al-4V workpiece decreases from 75 MPa to 67 MPa and the transverse stress decreases from 13 MPa to 3 MPa. The surface roughness of Ti-6Al-4V workpiece is reduced from Sa 76.7 nm to Sa 2.87 nm by UV-induced nanoparticle colloid jet machining.
WOS研究方向	Chemistry ; Materials Science ; Metallurgy & Metallurgical Engineering ; Physics
语种	英语
出版者	MDPI
WOS记录号	WOS:000694277300001
内容类型	期刊论文
源URL	[http://ir.lut.edu.cn/handle/2XXMBERH/148567]
专题	机电工程学院
作者单位	Lanzhou Univ Technol, Sch Mech & Elect Engn, Lanzhou 730050, Peoples R China
推荐引用方式 GB/T 7714	Song, Xiaozong,Wang, Xiaorong,Wang, Shun,et al. Experimental Study on Ultra-Precision Polishing of Ti-6Al-4V by Ultraviolet-Induced Nanoparticle Colloid Jet Machining[J]. MATERIALS,2021,14(17).
APA	Song, Xiaozong,Wang, Xiaorong,Wang, Shun,Liu, Shengkai,&Ge, Shundong.(2021).Experimental Study on Ultra-Precision Polishing of Ti-6Al-4V by Ultraviolet-Induced Nanoparticle Colloid Jet Machining.MATERIALS,14(17).
MLA	Song, Xiaozong,et al."Experimental Study on Ultra-Precision Polishing of Ti-6Al-4V by Ultraviolet-Induced Nanoparticle Colloid Jet Machining".MATERIALS 14.17(2021).