Tensile properties and microstructure of in situ NiAl-Cr (Zr) eutectic composite
文献类型：期刊论文
| 作者 | J. T. Guo ; Y. H. Qi ; G. S. Li ; W. T. Wu |
| 刊名 | Composite Structures
 |
| 出版日期 | 2003 |
| 卷号 | 62期号:3-4页码:323-327 |
| 关键词 | in situ composite NiAl microstructure tensile property creep rod-plate transition mechanical-properties creep-behavior strain-rate temperature alloy compound |
| ISSN号 | 0263-8223 |
| 中文摘要 | An in situ NiAl-33.5Cr-0.5Zr, composite was prepared by vacuum induction melting followed by hot isostatical pressing (HIP) at 1573 K and 100 MPa for 3 h. The microstructure of the composite is composed of NiAl matrix and Cr phase with small amount of Ni2AlZr and Zr-rich phases distributing at the interfaces of NiAl and Cr phases. It is found that the composite is stronger and more ductile than that of some NiAl-based alloys at high temperature. However the composite is still brittle at room temperature and becomes ductile with the increase of testing temperature. The brittle-to-ductile transition temperature (BDTT) is the function of initial strain rate. Under the creep deformation at 1273 K and 100 MPa, the minimum creep rate of the composite is three orders lower than that of the polycrystalline NiAl and single crystalline NiAl [001]. TEM observations on the deformed samples of both tension and creep show that dynamic recrystallization has occurred during high temperature deformation process. (C) 2003 Elsevier Ltd. All rights reserved. |
| 原文出处 | |
| 公开日期 | 2012-04-14 |
| 源URL | [http://ir.imr.ac.cn/handle/321006/35840]  |
| 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 | J. T. Guo,Y. H. Qi,G. S. Li,et al. Tensile properties and microstructure of in situ NiAl-Cr (Zr) eutectic composite[J]. Composite Structures,2003,62(3-4):323-327. |
| APA | J. T. Guo,Y. H. Qi,G. S. Li,&W. T. Wu.(2003).Tensile properties and microstructure of in situ NiAl-Cr (Zr) eutectic composite.Composite Structures,62(3-4),323-327. |
| MLA | J. T. Guo,et al."Tensile properties and microstructure of in situ NiAl-Cr (Zr) eutectic composite".Composite Structures 62.3-4(2003):323-327. |
入库方式： OAI收割
来源：金属研究所
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