A single-phase nanocrystalline sample was prepared by quenching a Hf11Ni89 alloy via the melt-spinning technique. Randomly oriented HfNi5 nanophase material, with an average grain size of about 10nm, was formed in the as-quenched state. Differential scanning calorimetry, transmission electron microscopy and X-ray diffraction were used to investigate the thermal stability and grain growth of the nanocrystalline HfNi5. The average grain-boundary energy, deduced from the calorimetric results, was about 360mJ/m2.

Thermal Stability and Grain Growth of a Melt-Spun HfNi5 Nanophase Alloy. K.Lu, Z.F.Dong, I.Bakonyi, A.Cziraki: Acta Metallurgica et Materialia, 1995, 43[7], 2641-7