Formation of nanostructure and abnormal annealing behavior of a Cu-Ag-Zr alloy processed by high-pressure torsion

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	Formation of nanostructure and abnormal annealing behavior of a Cu-Ag-Zr alloy processed by high-pressure torsion
	Y. Z. Tian; J. Freudenberger; R. Pippan; Z. F. Zhang
	2013
发表期刊	Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing
ISSN	0921-5093
卷号	568 页码:184-194
摘要	A bulk Cu-Ag-Zr alloy was processed by high-pressure torsion (HPT) up to 20 revolutions. The microstructure and microhardness of these deformed samples were studied after annealing. Microstructure refinement and grain growth have been observed at different straining stages. Accordingly, the microhardness increases initially and decreases slightly at extremely high strains. Deformation-induced mechanical alloying has also been detected. When the supersaturated solid solution was annealed at different temperatures, it is found that the microhardness increases slightly at 125 degrees C and then decreases continuously with increasing the annealing temperature. When the disks processed by HPT for one and five revolutions were annealed at 125 degrees C, microhardness decreases near the center but increases at the outer region of the disk, and this transition is proposed to be strain-related. (C) 2012 Elsevier B.V. All rights reserved.
部门归属	[tian, y. z. ; zhang, z. f.] chinese acad sci, inst met res, shenyang natl lab mat sci, shenyang 110016, peoples r china. [freudenberger, j.] ifw dresden, inst metall mat, d-01171 dresden, germany. [freudenberger, j.] tech univ bergakad freiberg, inst mat sci, d-09599 freiberg, germany. [pippan, r.] austrian acad sci, erich schmid inst mat sci, a-8700 leoben, austria. ; zhang, zf (reprint author), chinese acad sci, inst met res, shenyang natl lab mat sci, 72 wenhua rd, shenyang 110016, peoples r china. ; zhfzhang@imr.ac.cn
关键词	High-pressure Torsion (Hpt) Supersaturated Solid Solution Grain Refinement Grain Growth Annealing Severe Plastic-deformation Microstructural Evolution Grain-growth Mechanical-properties Nanocrystalline Ni Bulk Materials High-strength Temperature Aluminum Metals
URL	查看原文
语种	英语
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/71504
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	Y. Z. Tian,J. Freudenberger,R. Pippan,et al. Formation of nanostructure and abnormal annealing behavior of a Cu-Ag-Zr alloy processed by high-pressure torsion[J]. Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing,2013,568:184-194.
APA	Y. Z. Tian,J. Freudenberger,R. Pippan,&Z. F. Zhang.(2013).Formation of nanostructure and abnormal annealing behavior of a Cu-Ag-Zr alloy processed by high-pressure torsion.Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing,568,184-194.
MLA	Y. Z. Tian,et al."Formation of nanostructure and abnormal annealing behavior of a Cu-Ag-Zr alloy processed by high-pressure torsion".Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing 568(2013):184-194.