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- Title
Experimental determination of the Ni–Ni5Zr eutectic point for binary Ni–Zr alloy phase diagram.
- Authors
Wang, Q.; Wang, H. P.; Geng, D. L.; Wei, B.
- Abstract
The Ni–Ni5Zr eutectic alloy becomes a promising structural material owing to its high strength and desirable plasticity. However, those nominal eutectic alloys with previously assumed compositions of Ni-8.8 at.% Zr and Ni-9.0 at.% Zr were found to involve a considerable amount of primary (Ni) phase. Hereby, an experimental study was conducted by differential scanning calorimetry and careful electron microscopy to clarify the situation. A total of 13 alloys in the composition range of 8.8 ~ 11.0 at.% Zr were explored with respect to their phase transition temperatures and microstructure evolution characteristics. The Ni-9.9 at.% Zr alloy exhibited primary (Ni) phase, whereas the Ni-10.1 at.% Zr alloy displayed primary Ni5Zr phase. Finally, the eutectic point was determined as Ni-10.0 at.% Zr alloy with a transition temperature of 1467 K, and the relevant part of Ni–Zr phase diagram was revised accordingly.
- Subjects
NI Ni; BINARY metallic systems; PHASE diagrams; EUTECTIC alloys; CONSTRUCTION materials; TRANSITION temperature; METALLIC glasses
- Publication
Applied Physics A: Materials Science & Processing, 2020, Vol 126, Issue 5, p1
- ISSN
0947-8396
- Publication type
Article
- DOI
10.1007/s00339-020-03569-4