| Superplasticity in a directionally solidified multiphase Ni-25Al-25Cr alloy | |
| Guo, J. T.; Zhou, J. | |
| Corresponding Author | Guo, J. T.(jtguo@imr.ac.cn) |
| 2021-12-20 | |
| Source Publication | INTERNATIONAL JOURNAL OF MATERIALS RESEARCH
 |
| ISSN | 1862-5282 |
| Volume | 95Issue:1Pages:22-26 |
| Abstract | 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. |
| Keyword | NiAl Superplastic behavior Casting Microstructure |
| DOI | 10.3139/ijmr-2004-0006 |
| Indexed By | SCI |
| Language | 英语 |
| WOS Research Area | Metallurgy & Metallurgical Engineering |
| WOS Subject | Metallurgy & Metallurgical Engineering |
| WOS ID | WOS:000734286900006 |
| Publisher | WALTER DE GRUYTER GMBH |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.imr.ac.cn/handle/321006/173810 |
| Collection | 中国科学院金属研究所 |
| Corresponding Author | Guo, J. T. |
| Affiliation | Chinese Acad Sci, Inst Met Res, 72 Wenhua Rd, Shenyang 110016, Peoples R China |
| Recommended Citation 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. |
| Files in This Item: | There are no files associated with this item. | |||||
Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.
Edit Comment