Glossary
Zirconium and hafnium metallurgy

réaction eutectoïde; eutectoid reaction or eutectoid decomposition

Solid-state transformation: on cooling, and assuming equilibrium is reached, the eutectoid compound (or alloy with eutectoid composition) is transformed at a given temperature into several phases of different compositions.

martensitic transformation; transformation martensitique

Solid-state phase transformation during shear cooling, without diffusion; the resulting structure is generally acicular.

bainitic transformation; bainitic transformation

Solid-state phase transformation during cooling, involving both shear and diffusion of certain alloying elements.

transformation allotropique; allotropic transformation

Change of phase (or crystallographic structure)...