We found a match
Your institution may have access to this item. Find your institution then sign in to continue.
- Title
Effect of High Pressure on the Solidification of Al–Ni Alloy.
- Authors
Wang, Xiao-Hong; Dong, Duo; Yang, Xiao-Hong; Zhang, Yijie; Zhang, Zhifeng; Shi, Zhiming; Knaislova, Anna; Bei, Hongbin
- Abstract
The effect of high pressure on the microstructure of hypo-peritectic Al–38wt.%Ni alloy was studied. The results show that Al3Ni and Al3Ni2 phases coexist at ambient pressure. However, it becomes a typical hyper-eutectic microstructure when synthesized at 2 GPa and 4 GPa. Meanwhile, the interface temperature of Al3Ni and Al3Ni2 phases was calculated with the combination of the BCT dendrite growth model, which is suitable for the Al3Ni2 phase. According to the highest interface temperature principle, the result shows that the Al3Ni phase dominates over 1–5 GPa. Finally, the Debye temperature and potential energy of the hypo-peritectic Al–38wt.%Ni alloy under different pressures were researched. Based on the low temperature specific heat-capacity curve. The Debye temperatures at ambient pressure, 2 GPa, and 4 GPa are 504.4 K, 508.71 K and 515.36 K, respectively, and the potential energy in the lowest point decreases with the increase of pressure.
- Subjects
DEBYE temperatures; ALLOYS; SOLIDIFICATION; POTENTIAL energy; LOW temperatures; NICKEL-aluminum alloys; HYPEREUTECTIC alloys
- Publication
Crystals (2073-4352), 2021, Vol 11, Issue 5, p478
- ISSN
2073-4352
- Publication type
Article
- DOI
10.3390/cryst11050478