The effect of oxygen on alpha '' martensite and superelasticity in Ti-24Nb-4Zr-8Sn
文献类型：期刊论文
| 作者 | E. G. Obbard ; Y. L. Hao ; R. J. Talling ; S. J. Li ; Y. W. Zhang ; D. Dye ; R. Yang |
| 刊名 | Acta Materialia
 |
| 出版日期 | 2011 |
| 卷号 | 59期号:1页码:112-125 |
| 关键词 | Martensitic phase transformation Shape memory alloys Synchrotron radiation Titanium alloys X ray diffraction ti-nb-ta transmission electron-microscopy shape-memory behavior titanium-alloy gum metal elastic-constants single-crystal biomedical applications phase-transformations texture analysis |
| ISSN号 | 1359-6454 |
| 中文摘要 | beta Phase elasticity stress-induced alpha '' transformation and superelasticity in hot-forged Ti-24Nb-4Zr-8Sn (0 08-0 40)O (wt %) has been investigated by in situ synchrotron X-ray diffraction Rietveld refinement and texture analysis The beta elastic constants were determined by Eshelby-Krone-Kneer self-consistent modelling A micromechanical model based on texture, martensite crystallography and Schmid law nucleation criteria was used to analyse the generation of non linear strain Oxygen increased the e cubic shear constant The beta phase showed Increased compliance along < 1 1 0 >(beta) as precursor to transformation, which occurs above 0 15 wt % O by growth of nanosized nuclei, and is nearly suppressed at 0 40 wt % O by structural convergence of parent/martensite phases The shape of the stress strain curve is due principally to stress induced martensitic transformation with high-symmetry {7 5 5}(beta) habit planes, and is controlled by oxygen through Its effect on the transformation strains and critical shear stress (C) 2010 Acta Materialia Inc Published by Elsevier Ltd All rights reserved |
| 原文出处 | |
| 公开日期 | 2012-04-13 |
| 源URL | [http://210.72.142.130/handle/321006/30604]  |
| 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 | E. G. Obbard,Y. L. Hao,R. J. Talling,et al. The effect of oxygen on alpha '' martensite and superelasticity in Ti-24Nb-4Zr-8Sn[J]. Acta Materialia,2011,59(1):112-125. |
| APA | E. G. Obbard.,Y. L. Hao.,R. J. Talling.,S. J. Li.,Y. W. Zhang.,...&R. Yang.(2011).The effect of oxygen on alpha '' martensite and superelasticity in Ti-24Nb-4Zr-8Sn.Acta Materialia,59(1),112-125. |
| MLA | E. G. Obbard,et al."The effect of oxygen on alpha '' martensite and superelasticity in Ti-24Nb-4Zr-8Sn".Acta Materialia 59.1(2011):112-125. |
入库方式： OAI收割
来源：金属研究所
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