Effect of Cold Rolling on the Microstructure and Mechanical Properties of Pure Nickel N6

	Effect of Cold Rolling on the Microstructure and Mechanical Properties of Pure Nickel N6
	Jia Zhi 1,2; Sun Xuan 2; Ji Jinjin 3; Wang Yanjiang 2; Wei Baolin 2; Yu Lidan 2
刊名	RARE METAL MATERIALS AND ENGINEERING
	2021-10-01
卷号	50 期号:10 页码:3504-3511
关键词	pure nickel N6 cold rolling (CR) microstructure mechanical properties fracture behavior
ISSN号	1002-185X
英文摘要	The effects of cold deformation on the evolution of the microstructure and mechanical properties of pure nickel N6 were investigated. Samples of pure nickel N6 were deformed by cold rolling (CR) to different thickness reductions (20%, 30%, 50%, 70%, 90%). Scanning electron microscopy (SEM), electron backscatter diffraction (EBSD), X-ray diffraction (XRD), microhardness measurements, and tensile tests were used to characterize the microstructure and mechanical properties of the cold-rolled samples. The results show that the grains of pure nickel N6 are refined, and the grain with irregular orientation transforms into a strip-like grain with a preferred orientation parallel to the rolling direction. Micro- and nano-grains of pure nickel N6 are obtained under CR reduction of 90%, at which the grain diameter is mainly below 10 gm, accounting for 94% of the entire grain size. The distribution of low-angle grain boundaries (LAGBs) in the rolled samples is uniform, with a relatively high fraction of misorientation angles of 10 degrees from neighboring points. Upon increasing the cold rolling reductions, the tensile strength and microhardness increase, but the elongation decreases. At a CR thickness reduction of 90%, the tensile strength is 837 MPa, and the microhardness is 2479 MPa, which are 2.32 and 2.7 times higher than those in the unrolled condition, respectively. The fracture morphology of pure nickel N6 at various CR reductions include equiaxed dimples, ridges, and a step morphology, which indicate ductile fracture.
WOS研究方向	Materials Science ; Metallurgy & Metallurgical Engineering
语种	中文
出版者	NORTHWEST INST NONFERROUS METAL RESEARCH
WOS记录号	WOS:000715969500010
内容类型	期刊论文
源URL	[http://ir.lut.edu.cn/handle/2XXMBERH/155007]
专题	材料科学与工程学院
作者单位	1.Lanzhou Univ Technol, State Key Lab Adv Proc & Recycling Nonferrous Met, Lanzhou 730050, Peoples R China; 2.Lanzhou Univ Technol, Sch Mat Sci & Engn, Lanzhou 730050, Peoples R China; 3.Lanzhou Inst Technol, Sch Mat Engn, Lanzhou 730050, Peoples R China
推荐引用方式 GB/T 7714	Jia Zhi,Sun Xuan,Ji Jinjin,et al. Effect of Cold Rolling on the Microstructure and Mechanical Properties of Pure Nickel N6[J]. RARE METAL MATERIALS AND ENGINEERING,2021,50(10):3504-3511.
APA	Jia Zhi,Sun Xuan,Ji Jinjin,Wang Yanjiang,Wei Baolin,&Yu Lidan.(2021).Effect of Cold Rolling on the Microstructure and Mechanical Properties of Pure Nickel N6.RARE METAL MATERIALS AND ENGINEERING,50(10),3504-3511.
MLA	Jia Zhi,et al."Effect of Cold Rolling on the Microstructure and Mechanical Properties of Pure Nickel N6".RARE METAL MATERIALS AND ENGINEERING 50.10(2021):3504-3511.