Superplasticity in a directionally solidified multiphase Ni-25Al-25Cr alloy
文献类型：期刊论文
| 作者 | Guo, J. T.; Zhou, J. |
| 刊名 | INTERNATIONAL JOURNAL OF MATERIALS RESEARCH
 |
| 出版日期 | 2021-12-20 |
| 卷号 | 95期号:1页码:22-26 |
| 关键词 | NiAl Superplastic behavior Casting Microstructure |
| ISSN号 | 1862-5282 |
| DOI | 10.3139/ijmr-2004-0006 |
| 通讯作者 | Guo, J. T.(jtguo@imr.ac.cn) |
| 英文摘要 | A Ni-25Al-25Cr (at.%) alloy was directionally solidified under Ar atmosphere in an Al2O3 - SiO2 ceramic mold by the standard Bridgman method. The microstructure of the as-fabricated alloy was studied using optical microscopy, X-ray diffraction and scanning electron microscopy. The alloy was composed of beta-NiAl dendritic arms, alpha-Cr interdendritic regions, fine alpha-Cr particles in the dendritic arms, and beta-NiAl + alpha-Cr eutectic in the interdendritic regions. The mechanical properties were studied by tensile tests in the temperature range 1123-1373 K. The results showed that the alloy exhibits superplastic behavior at appropriate testing conditions. The balance between work hardening (by dislocation glide) and work softening (by dynamic recovery and recrystallization) is responsible for the large tensile elongation of the alloy. |
| WOS研究方向 | Metallurgy & Metallurgical Engineering |
| 语种 | 英语 |
| WOS记录号 | WOS:000734286900006 |
| 出版者 | WALTER DE GRUYTER GMBH |
| 源URL | [http://ir.imr.ac.cn/handle/321006/173809]  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 通讯作者 | Guo, J. T. |
| 作者单位 | Chinese Acad Sci, Inst Met Res, 72 Wenhua Rd, Shenyang 110016, Peoples R China |
| 推荐引用方式 GB/T 7714 | Guo, J. T.,Zhou, J.. Superplasticity in a directionally solidified multiphase Ni-25Al-25Cr alloy[J]. INTERNATIONAL JOURNAL OF MATERIALS RESEARCH,2021,95(1):22-26. |
| APA | Guo, J. T.,&Zhou, J..(2021).Superplasticity in a directionally solidified multiphase Ni-25Al-25Cr alloy.INTERNATIONAL JOURNAL OF MATERIALS RESEARCH,95(1),22-26. |
| MLA | Guo, J. T.,et al."Superplasticity in a directionally solidified multiphase Ni-25Al-25Cr alloy".INTERNATIONAL JOURNAL OF MATERIALS RESEARCH 95.1(2021):22-26. |
入库方式： OAI收割
来源：金属研究所
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