Calorimetric study of multiple-step transformation in TiNi shape memory alloy with partial transformation cycle
文献类型：期刊论文
| 作者 | Z. G. Wang ; X. T. Zu ; X. D. Feng ; H. Q. Mo ; J. M. Zhou |
| 刊名 | Materials Letters
 |
| 出版日期 | 2004 |
| 卷号 | 58期号:25页码:3141-3144 |
| 关键词 | TiNi shape memory alloy aging differential scanning calorimetry (DSC) martensitic phase transformation partial transformation cycle binary niti-alloys martensitic-transformation electron-microscopy phase microstructure |
| ISSN号 | 0167-577X |
| 中文摘要 | Single-step transformation was observed for Ti-50.6 at.%Ni shape memory alloy (SMA) solution annealed at 800 degreesC for 20 min and quenched to 0 degreesC. However, multiple-step transformation (MST) occurred after further aging at 380-500 degreesC for 1 h. Aging at 380 degreesC resulted in three distinct DSC peaks upon cooling and two peaks upon heating. Aging at 450 degreesC resulted in three distinct DSC peaks upon cooling and one peak upon heating. There were two peaks that emerge upon cooling and one peak upon heating for the samples aged at 500 degreesC. The multiple-step transformation was studied by differential scanning calorimetry (DSC) with partial transformation cycle. The multiple-step transformation was explained by the heterogeneous microstructures. The matrix in the precipitate Ti3Ni4 region near the grain boundary transformed from parent phase (B2) to R phase and further to martensite (B19') which contribute to the first and second peaks upon cooling, and B19' --> R --> B2 transformation happens upon heating. Whereas the matrix in the precipitate free grain interiors B2 transformed into martensite directly which contribute to the third peak upon cooling. (C) 2004 Published by Elsevier B.V. |
| 原文出处 | |
| 公开日期 | 2012-04-14 |
| 源URL | [http://ir.imr.ac.cn/handle/321006/35598]  |
| 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 | Z. G. Wang,X. T. Zu,X. D. Feng,et al. Calorimetric study of multiple-step transformation in TiNi shape memory alloy with partial transformation cycle[J]. Materials Letters,2004,58(25):3141-3144. |
| APA | Z. G. Wang,X. T. Zu,X. D. Feng,H. Q. Mo,&J. M. Zhou.(2004).Calorimetric study of multiple-step transformation in TiNi shape memory alloy with partial transformation cycle.Materials Letters,58(25),3141-3144. |
| MLA | Z. G. Wang,et al."Calorimetric study of multiple-step transformation in TiNi shape memory alloy with partial transformation cycle".Materials Letters 58.25(2004):3141-3144. |
入库方式： OAI收割
来源：金属研究所
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