Acicular alpha(2) precipitation induced by capillarity at alpha/beta phase boundaries in Ti-14Al-2Zr-3Sn-3Mo-0.5Si titanium alloy
文献类型：期刊论文
| 作者 | A. J. Huang ; G. P. Li ; Y. L. Hao ; R. Yang |
| 刊名 | Acta Materialia
 |
| 出版日期 | 2003 |
| 卷号 | 51期号:16页码:4939-4952 |
| 关键词 | titanium alloys ordering heterogeneous nucleation of phased precipitation transmission electron microscopy (TEM) ti-al alloys self-diffusion behavior system microstructure temperature growth transformations equilibria evolution |
| ISSN号 | 1359-6454 |
| 中文摘要 | The precipitation of alpha(2) phase based on Ti3Al from Ti-14Al-2Zr-3Sn-3Mo-0.5Si titanium alloy homogenized at different temperatures in the (alpha + beta) two-phase field has been characterized. Minimal lattice mismatch between the alpha and alpha(2) phase leads to a massive ordering transformation upon cooling and results in morphologies distinct from the ellipsoidal shape of the alpha(2) particles. Enrichment of At in front of growing beta grains due to the Gibbs-Thomson effect., together with preferential diffusion of At along <11 (2) over bar0> produces a layer of acicular alpha(2) particles apparently perpendicular to the alpha/beta phase boundaries. Removal of the capillarity-induced composition inhomogeneity by subsequent aging at 750 degreesC results in disappearance of the acicular shape of the alpha(2) particles. (C) 2003 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved. |
| 原文出处 | |
| 公开日期 | 2012-04-14 |
| 源URL | [http://ir.imr.ac.cn/handle/321006/35857]  |
| 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 | A. J. Huang,G. P. Li,Y. L. Hao,et al. Acicular alpha(2) precipitation induced by capillarity at alpha/beta phase boundaries in Ti-14Al-2Zr-3Sn-3Mo-0.5Si titanium alloy[J]. Acta Materialia,2003,51(16):4939-4952. |
| APA | A. J. Huang,G. P. Li,Y. L. Hao,&R. Yang.(2003).Acicular alpha(2) precipitation induced by capillarity at alpha/beta phase boundaries in Ti-14Al-2Zr-3Sn-3Mo-0.5Si titanium alloy.Acta Materialia,51(16),4939-4952. |
| MLA | A. J. Huang,et al."Acicular alpha(2) precipitation induced by capillarity at alpha/beta phase boundaries in Ti-14Al-2Zr-3Sn-3Mo-0.5Si titanium alloy".Acta Materialia 51.16(2003):4939-4952. |
入库方式： OAI收割
来源：金属研究所
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