Deformation Structure and Mechanical Properties of Single Crystal Copper Deformed by Route ECAP/Bc

	Deformation Structure and Mechanical Properties of Single Crystal Copper Deformed by Route ECAP/Bc
	Guo, Tingbiao 1,2; Wang, Chen 1; Li, Qi 1; Zhang, Feng 1; Jia, Zhi 1,2
刊名	Xiyou Jinshu Cailiao Yu Gongcheng/Rare Metal Materials and Engineering
	2018-10-01
卷号	47 期号:10 页码:3096-3103
关键词	Copper Crystal orientation Electron diffraction Grain boundaries Grain size and shape Pressing (forming) Shear bands Single crystals Tensile strength Textures Deformation structure Electron back scatter diffraction Electron back-scattered diffraction Macroscopic orientation Material hardness Plastic deformation abilities Single crystal copper Strength increase
ISSN号	1002185X
英文摘要	The deformation structure of single crystal copper during 4 passes equal channel angular pressing (ECAP) through route Bc was investigated by electron backscatter diffraction (EBSD) and XRD, and the mechanical properties of the deformed material were measured. The results show that the macroscopic orientation of the single crystal under low pass deformation does not change. After 2 passes, an orientation-ordered shear band appears and inclines within the range of 15°~20° in the ED direction, with a deformed texture {111} on the grains; After 4 passes, the angle between the shear band and the ED direction is constant, while the inclined direction is opposite to that of the 2 passes, the texture of the material is still {111} texture, and no large angle grain boundary is present; After 5 passes, the tensile strength increases from 168 MPa to 395 MPa, and the elongation decreases from 63% to 26.5%, the material hardness increases from 600 MPa to 1250 MPa, and then tends to change little. Because of the accumulation of dislocations, the plastic deformation ability of the material becomes deteriorated, and the necking area increases. ECAP has a positive effect on increasing the strength of single crystal copper with unbroken grains. © 2018, Science Press. All right reserved./Copyright © 2018, Northwest Institute for Nonferrous Metal Research. Published by Elsevier BV. All rights reserved.
WOS研究方向	Materials Science ; Metallurgy & Metallurgical Engineering
语种	中文
出版者	Rare Metals Materials and Engineering Press
WOS记录号	WOS:000449442900026
内容类型	期刊论文
源URL	[http://ir.lut.edu.cn/handle/2XXMBERH/114517]
专题	材料科学与工程学院
作者单位	1.State Key Laboratory of Advanced Processing and Recycling of Non-ferrous Metals, Lanzhou University of Technology, Lanzhou; 730050, China; 2.Key Laboratory of Nonferrous Metal Alloys and Processing, Ministry of Education, Lanzhou; 730050, China
推荐引用方式 GB/T 7714	Guo, Tingbiao,Wang, Chen,Li, Qi,et al. Deformation Structure and Mechanical Properties of Single Crystal Copper Deformed by Route ECAP/Bc[J]. Xiyou Jinshu Cailiao Yu Gongcheng/Rare Metal Materials and Engineering,2018,47(10):3096-3103.
APA	Guo, Tingbiao,Wang, Chen,Li, Qi,Zhang, Feng,&Jia, Zhi.(2018).Deformation Structure and Mechanical Properties of Single Crystal Copper Deformed by Route ECAP/Bc.Xiyou Jinshu Cailiao Yu Gongcheng/Rare Metal Materials and Engineering,47(10),3096-3103.
MLA	Guo, Tingbiao,et al."Deformation Structure and Mechanical Properties of Single Crystal Copper Deformed by Route ECAP/Bc".Xiyou Jinshu Cailiao Yu Gongcheng/Rare Metal Materials and Engineering 47.10(2018):3096-3103.