Study on nanocrystalline dual phase Ni-Co alloy with high strength and excellent ductility
文献类型：期刊论文
| 作者 | Xu WC; Dai PQ; Wu XL(武晓雷) ; Tang D
|
| 刊名 | Materials Science and Technology
 |
| 出版日期 | 2011 |
| 卷号 | 27期号:1页码:320-324 |
| 通讯作者邮箱 | pqdai@126.com |
| 关键词 | Nanocrystalline Ni-Co Mechanical Property Tensile Ductility Grain Growth Dual Phase Structure Tensile Plastic-Deformation Grain-Boundary Temperature Nickel Microstructure Growth Metals Copper Cobalt Creep |
| ISSN号 | 0267-0836 |
| 产权排序 | [Xu, WC; Dai, PQ; Tang, D] Fuzhou Univ, Coll Mat Sci & Engn, Fuzhou 350108, Peoples R China; [Wu, XL] Chinese Acad Sci, State Key Lab Nonlinear Mech, Inst Mech, Beijing 100080, Peoples R China |
| 通讯作者 | Dai, PQ (reprint author), Fuzhou Univ, Coll Mat Sci & Engn, Fuzhou 350108, Peoples R China |
| 合作状况 | 国内 |
| 中文摘要 | In the present study, the room temperature mechanical properties of nanocrystalline Ni and Ni-75 wt-%Co alloy, prepared by pulse electrodeposition, were contrasted. Both higher strength and higher ductility were obtained for the Ni-75% Co alloy with a dual phase structure and an average grain size of 7.2 nm. By means of TEM observations of grain structures before and after tensile deformation for Ni and Ni-75% Co samples, a link between the ductility and the variation of stress induced grain growth during tensile deformation was established. Observations of TEM showed stress induced grain growth during tensile deformation, subjected to very high stresses and large strains, is very insignificant for the Ni-75% Co alloy in sharp contrast to the significant stress induced grain growth occurring in Ni. It was proposed that suppression of stress induced grain growth during tensile deformation can delay and even prohibit formation of shear banding plastic instability and thus enhances uniform strain leading to an enhanced ductility. |
| 学科主题 | Materials Science; Metallurgy & Metallurgical Engineering |
| 分类号 | Q3 |
| 类目[WOS] | Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering |
| 研究领域[WOS] | Materials Science ; Metallurgy & Metallurgical Engineering |
| 关键词[WOS] | TENSILE PLASTIC-DEFORMATION ; GRAIN-BOUNDARY ; TEMPERATURE ; NICKEL ; MICROSTRUCTURE ; GROWTH ; METALS ; COPPER ; COBALT ; CREEP |
| 收录类别 | SCI ; EI |
| 资助信息 | The financial support provided by the Innovation Project of Fuzhou University, the Foundations of Fujian Provincial Natural Science Research Programme (project no. 2008J0145-E0810006) and the National 863 Projects of China (project no. 2007AA03Z325) is gratefully acknowledged. |
| 原文出处 | http://dx.doi.org/10.1179/026708309X12506933873224 |
| 语种 | 英语 |
| WOS记录号 | WOS:000285870400055 |
| 公开日期 | 2012-04-01 |
| 源URL | [http://dspace.imech.ac.cn/handle/311007/44954]  |
| 专题 | 力学研究所_非线性力学国家重点实验室 |
| 推荐引用方式 GB/T 7714 | Xu WC,Dai PQ,Wu XL,et al. Study on nanocrystalline dual phase Ni-Co alloy with high strength and excellent ductility[J]. Materials Science and Technology,2011,27(1):320-324. |
| APA | Xu WC,Dai PQ,武晓雷,&Tang D.(2011).Study on nanocrystalline dual phase Ni-Co alloy with high strength and excellent ductility.Materials Science and Technology,27(1),320-324. |
| MLA | Xu WC,et al."Study on nanocrystalline dual phase Ni-Co alloy with high strength and excellent ductility".Materials Science and Technology 27.1(2011):320-324. |
入库方式： OAI收割
来源：力学研究所
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