Incommensurate modulated structure study of a Cu-Zn-Al-Zr phase
文献类型：期刊论文
| 作者 | Chung, CY ; Zou, WH ; Han, XD ; Lam, CWH ; Gao, M ; Duan, XF ; Lai, JKL |
| 刊名 | ACTA MATERIALIA
 |
| 出版日期 | 1998 |
| 卷号 | 46期号:15页码:5541 |
| 关键词 | BEAM ELECTRON-DIFFRACTION CRYSTAL PHASES SYMMETRY |
| ISSN号 | 1359-6454 |
| 通讯作者 | Chung, CY: City Univ Hong Kong, Dept Phys & Mat Sci, Tat Chee Ave, Kowloon, Hong Kong. |
| 中文摘要 | Zr was added to Cu-Zn-Al shape memory alloy as a grain refinement element. There are two new phases, Cu50.2Zr24.6Al17.3Zn7.9 (at%) (Z(1) phase) and Cu57.4Zr20.4Zn10.3Al11.9 (at%) (Z(2) phase), in the Cu-19.0Zn-13.1Al-1.1Mn-0.3Zr (at%) alloy. The structure of the Cu57.4Zr20.4Zn10.3Al11.9 (at%) (Z(2)) phase is studied in detail in the present paper. The results of electron diffraction and high-resolution electron microscopy (HREM) investigations indicated a one-dimensional incommensurate modulated structure in the Z(2) phase. The average structure of the phase is base-centred orthorhombic. The systematic reflection conditions associated with the main and satellite reflections demonstrate that the Bravais class of the Z(2) phase is P-11 (1 over bar)(Cmmm) type in a (3 + 1) dimensional space for the incommensurate modulated structure. The substitution modulation effects of the Al and Zr elements are revealed by energy-filtered transmission electron microscopy (EFTEM). {1 (3) over bar (2) over bar} compound-type twins are observed in the Z(2) phase. The relationship between the Z(1) and Z(2) phases in the alloy is discussed, (C) 1998 Acta Metallurgica Inc. Published by Elsevier Science Ltd. All rights reserved. |
| 收录类别 | SCI |
| 语种 | 英语 |
| 公开日期 | 2013-09-17 |
| 源URL | [http://ir.iphy.ac.cn/handle/311004/39743]  |
| 专题 | 物理研究所_物理所公开发表论文_物理所公开发表论文_期刊论文 |
| 推荐引用方式 GB/T 7714 | Chung, CY,Zou, WH,Han, XD,et al. Incommensurate modulated structure study of a Cu-Zn-Al-Zr phase[J]. ACTA MATERIALIA,1998,46(15):5541. |
| APA | Chung, CY.,Zou, WH.,Han, XD.,Lam, CWH.,Gao, M.,...&Lai, JKL.(1998).Incommensurate modulated structure study of a Cu-Zn-Al-Zr phase.ACTA MATERIALIA,46(15),5541. |
| MLA | Chung, CY,et al."Incommensurate modulated structure study of a Cu-Zn-Al-Zr phase".ACTA MATERIALIA 46.15(1998):5541. |
入库方式： OAI收割
来源：物理研究所
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