Phase equilibria in the ZrCo–ZrNi–Zr₂Ni – Zr₂Co partial system

Chem. Met. Alloys 1 (2008) 73-75.

https://doi.org/10.30970/cma1.0005

V.G. IVANCHENKO, T.A. KOSORUKOVA

This work presents an experimental study of the ternary Co–Ni–Zr system in the ZrCo–ZrNi– Zr₂Ni–Zr₂Co composition region by means of optical microscopy, X-ray diffraction and differential thermal analysis. The study shows that the ZrCo–ZrNi section is pseudobinary and has a peritectic character. Including the phase equilibria in the binary systems, the partial ternary system may be characterized by the following invariant equilibria, Р: L + ZrCo « ZrNi, Е: L « ZrCo + Zr₂Co, U: ZrCo +L « Zr₂Co_1-xNi_х + ZrNi, Е: L « ZrNi + Zr₂Ni. The Zr₅₇Co₄₃–Zr₅₇Ni₄₃ section has been constructed.

The Zr₅₇Co₄₃–Zr₅₇Ni₄₃ section.

Keywords

Phase diagram / Crystal structure / Intermetallics