Microstructural evolution and mechanical properties of a two-phase Cu-Ag alloy processed by high-pressure torsion to ultrahigh strains
文献类型：期刊论文
| 作者 | Y. Z. Tian ; S. D. Wu ; Z. F. Zhang ; R. B. Figueiredo ; N. Gao ; T. G. Langdon |
| 刊名 | Acta Materialia
 |
| 出版日期 | 2011 |
| 卷号 | 59期号:7页码:2783-2796 |
| 关键词 | Cu-Ag alloy High-pressure torsion Microstructure Hardness Fracture severe plastic-deformation grain-refinement nanostructured materials tensile properties aluminum-alloy pure aluminum homogeneity strength composites metals |
| ISSN号 | 1359-6454 |
| 中文摘要 | Disks of a coarse-grained Cu-28 wt.% Ag alloy were processed by high-pressure torsion up to 20 revolutions to reveal the microstructural evolution and mechanical properties. The eutectic shows a faster evolution process than the Cu matrix. A banded structure forms in the Cu matrix, and both the eutectic spacing and the band width decrease with increasing shear strain. After 20 revolutions, the substructure may even diminish in the Cu matrix. The microhardness increases with increasing revolutions, and a saturation microhardness is ultimately achieved. After 20 revolutions, the tensile strength was improved to similar to 1420 MPa, and the failure mode of the sample was transferred from necking to full shearing without plasticity. (C) 2011 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved. |
| 原文出处 | |
| 公开日期 | 2012-04-13 |
| 源URL | [http://210.72.142.130/handle/321006/30712]  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 推荐引用方式 GB/T 7714 | Y. Z. Tian,S. D. Wu,Z. F. Zhang,et al. Microstructural evolution and mechanical properties of a two-phase Cu-Ag alloy processed by high-pressure torsion to ultrahigh strains[J]. Acta Materialia,2011,59(7):2783-2796. |
| APA | Y. Z. Tian,S. D. Wu,Z. F. Zhang,R. B. Figueiredo,N. Gao,&T. G. Langdon.(2011).Microstructural evolution and mechanical properties of a two-phase Cu-Ag alloy processed by high-pressure torsion to ultrahigh strains.Acta Materialia,59(7),2783-2796. |
| MLA | Y. Z. Tian,et al."Microstructural evolution and mechanical properties of a two-phase Cu-Ag alloy processed by high-pressure torsion to ultrahigh strains".Acta Materialia 59.7(2011):2783-2796. |
入库方式： OAI收割
来源：金属研究所
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