Journal
JOURNAL OF ALLOYS AND COMPOUNDS
Volume 897, Issue -, Pages -Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/j.jallcom.2021.163172
Keywords
Metals and alloys; Microstructure; Synchrotron radiation; Metallography; Scanning electron microscopy; Thermal analysis
Categories
Funding
- Nihon Superior Co. Ltd.
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This paper investigates the effect of minor addition of Ni on the beta-phase evolution in an In-35 wt%Sn alloy during solidification and provides detailed observations of microstructure evolution and thermal properties.
In-35 wt%Sn alloy is a superconductive alloy and its superconductivity is highly dependent on the properties of the beta-In3Sn phase. However, detail solidification behaviour with microstructure development had not been studied with minor element additions. This paper investigates the effect of minor addition of Ni on the beta-phase evolution in an In-35 wt%Sn alloy during the solidification process using the in-situ real-time synchrotron radiography technique. The beta-phase preferably formed a columnar dendritic structure that made a transition to a mix structure of cellular and dendrite with a unique morphology with an addition of 0.05 wt%Ni. The findings provide detailed observations of microstructure evolution, specifically beta-In3Sn phase, and examine the effects of Ni addition during solidification of the In-35 wt%Sn alloy, as well as the thermal properties of the alloys by differential scanning calorimeter. (c) 2021 Elsevier B.V. All rights reserved.
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