The effect of oxygen on alpha '' martensite and superelasticity in Ti-24Nb-4Zr-8Sn | |
E. G. Obbard; Y. L. Hao; R. J. Talling; S. J. Li; Y. W. Zhang; D. Dye; R. Yang | |
2011 | |
发表期刊 | Acta Materialia
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ISSN | 1359-6454 |
卷号 | 59期号:1页码:112-125 |
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 |
部门归属 | [obbard, e. g.; hao, y. l.; li, s. j.; zhang, y. w.; yang, r.] chinese acad sci, inst met res, shenyang natl lab mat sci, shenyang 110016, peoples r china. [talling, r. j.; dye, d.] univ london imperial coll sci technol & med, dept mat, london sw7 2az, england.;hao, yl (reprint author), chinese acad sci, inst met res, shenyang natl lab mat sci, 72 wenhua rd, shenyang 110016, peoples r china |
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 |
URL | 查看原文 |
WOS记录号 | WOS:000284789200013 |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://ir.imr.ac.cn/handle/321006/30604 |
专题 | 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. |
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