Microstructure and mechanical behavior of a Ti-24Nb-4Zr-8Sn alloy processed by warm swaging and warm rolling
文献类型：期刊论文
| 作者 | Y. L. Hao ; Z. B. Zhang ; S. J. Li ; R. Yang |
| 刊名 | Acta Materialia
 |
| 出版日期 | 2012 |
| 卷号 | 60期号:5页码:2169-2177 |
| ISSN号 | 1359-6454 |
| 关键词 | Titanium alloy Grain refinement Elastic behavior Mechanical property Martensitic transformation severe plastic-deformation shape-memory alloys titanium-alloy biomedical applications pure ti refinement stability ecap ti-29nb-13ta-4.6zr evolution |
| 中文摘要 | A combination processing technique of warm swaging and warm rolling is proposed to refine grains and improve the mechanical properties of a multifunctional beta-type Ti-24Nb-4Zr-8Sn (wt.%) alloy. The results show that a highly swirled marble-like microstructure can be easily produced by warm swaging at an initial temperature of 573 K, whereas it has little effect on the nonlinear elastic deformation compared with the hot forged alloy with an equiaxed microstructure. Although the swirled microstructure has the limitation of an inhomogeneous distribution, swaging has the great advantage of refining the initial subgrains produced by hot forging with little loss of ductility. The following warm rolling at an initial temperature of 673 K results in a uniform microstructure comprising beta phase with a size less than similar to 200 nm and the precipitation of nanosized alpha phase. Therefore, significant grain refinement was achieved through the formation and refinement of the subgrains. The ultrafine grained alloy exhibits large scale nonlinear deformation behavior with a recoverable strain of up to similar to 3.4% in combination with a high strength of similar to 1150 MPa, a low elastic modulus of similar to 56 GPa and good ductility of Such an improvement in mechanical properties indicate great potential for biomedical applications. (C) 2012 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved. |
| 原文出处 | |
| 公开日期 | 2013-02-05 |
| 源URL | [http://ir.imr.ac.cn/handle/321006/59994]  |
| 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 | Y. L. Hao,Z. B. Zhang,S. J. Li,et al. Microstructure and mechanical behavior of a Ti-24Nb-4Zr-8Sn alloy processed by warm swaging and warm rolling[J]. Acta Materialia,2012,60(5):2169-2177. |
| APA | Y. L. Hao,Z. B. Zhang,S. J. Li,&R. Yang.(2012).Microstructure and mechanical behavior of a Ti-24Nb-4Zr-8Sn alloy processed by warm swaging and warm rolling.Acta Materialia,60(5),2169-2177. |
| MLA | Y. L. Hao,et al."Microstructure and mechanical behavior of a Ti-24Nb-4Zr-8Sn alloy processed by warm swaging and warm rolling".Acta Materialia 60.5(2012):2169-2177. |
入库方式： OAI收割
来源：金属研究所
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