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Article | REF: M3190 V1

Forming of zirconium and hafnium alloys

Author: Alexis GAILLAC

Publication date: September 10, 2018

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1. A reminder of metallurgy

For further details on extractive metallurgy and the production of Zr and Hf ingots, please refer to [M 2 360] .

1.1 Safety: pyrophoricity and flammability of Zr and Hf

It's worth recalling here that finely divided Zr and Hf alloys are highly flammable (ignition with minimal energy input), or even pyrophoric (spontaneous ignition). In fact, in divided form (chips, sawdust, powder), these reactive metals have the particularity of igniting more or less easily, depending...

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