Doping Ti to achieve microstructural refinement and strength enhancement in a high volume fraction Y2O3dispersion strengthened Cu
文献类型：期刊论文
| 作者 | Zhou, Dengshan1,2; Wang, Xinkai1; Zeng, Wei3; Yang, Chao4; Pan, Hucheng1; Li, Chenguang3; Liu, Yujie1; Zhang, Deliang1,2 |
| 刊名 | Journal of Alloys and Compounds
 |
| 出版日期 | 2018 |
| 卷号 | 753页码:18-27 |
| ISSN号 | 09258388 |
| DOI | 10.1016/j.jallcom.2018.04.224 |
| 英文摘要 | In this work, high volume fraction Y2O3dispersion strengthened Ti-free and Ti-doped Cu samples were prepared by mechanical alloying, high temperature heat treatment and powder compact extrusion to study the role of alloying Ti element on microstructures, mechanical properties and electrical conductivity of the extruded samples. It is found that the addition of a small amount of 0.4 wt.%Ti effectively suppresses the coarsening of Y2O3particles during material fabrication, which produces smaller and more uniform oxide particles distributed in a homogeneous ultrafine grained Cu matrix. However, a heterogeneous Cu matrix microstructure, consisting of elongated micrometer-scale Cu grains and equiaxed ultrafine Cu grains, is observed in the Ti-free sample due to significant coarsening of the Y2O3particles. The different microstructural features of the two extruded samples lead to distinctively different mechanical behaviors and electrical conductivities. The energy dispersive X-ray spectrometry elemental and high resolution transmission electron microscopy analysis suggest that the stabilizing mechanisms of the Y2O3particles involve both the segregation of Ti atoms to the surface layers of large Y2O3particles and dissolution of Ti atoms into small Y2O3particles to form complex particles. © 2018 Elsevier B.V. |
| 出版者 | Elsevier Ltd |
| 源URL | [http://ir.sic.ac.cn/handle/331005/25191]  |
| 专题 | 中国科学院上海硅酸盐研究所 |
| 作者单位 | 1.Key Laboratory for Anisotropy and Texture of Materials (Ministry of Education), Northeastern University, Shenyang; 110819, China; 2.Institute of Ceramics and Powder Metallurgy, School of Materials Science and Engineering, Northeastern University, Shenyang; 110819, China; 3.The State Key Laboratory of Metal Matrix Composites, School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai; 200240, China; 4.Shanghai Institute of Applied Physics, Chinese Academy of Sciences (CAS), Shanghai; 201800, China |
| 推荐引用方式 GB/T 7714 | Zhou, Dengshan,Wang, Xinkai,Zeng, Wei,et al. Doping Ti to achieve microstructural refinement and strength enhancement in a high volume fraction Y2O3dispersion strengthened Cu[J]. Journal of Alloys and Compounds,2018,753:18-27. |
| APA | Zhou, Dengshan.,Wang, Xinkai.,Zeng, Wei.,Yang, Chao.,Pan, Hucheng.,...&Zhang, Deliang.(2018).Doping Ti to achieve microstructural refinement and strength enhancement in a high volume fraction Y2O3dispersion strengthened Cu.Journal of Alloys and Compounds,753,18-27. |
| MLA | Zhou, Dengshan,et al."Doping Ti to achieve microstructural refinement and strength enhancement in a high volume fraction Y2O3dispersion strengthened Cu".Journal of Alloys and Compounds 753(2018):18-27. |
入库方式： OAI收割
来源：上海硅酸盐研究所
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