Corrosion Behavior of NiAl (1-x) Hfx (x= 0... 0.2) Alloys in Chlorine Based High Temperature Environments - Archive ouverte HAL Accéder directement au contenu
Communication Dans Un Congrès Année : 2009

Corrosion Behavior of NiAl (1-x) Hfx (x= 0... 0.2) Alloys in Chlorine Based High Temperature Environments

Damien Texier
Michael Schütze
  • Fonction : Auteur

Résumé

Five compositions of (Ni0.5Al0.5)(1-x)Hfx (x=0...0.2) alloys were prepared by centrifugal casting in an inductive furnace. The cast alloys exhibits 3 phases: β-NiAl, NiAlHf (Laves) and Ni2AlHf (Heussler). Their CTEs were found to vary linearly with the hafnium content. Hafnium can be used to adjust the CTE to the substrate CTE. At the same time the prepared alloys are corrosion resistant in chlorine based high temperature environments. For hafnium contents higher than 10 at.%t, it was shown that hafnium addition improves the Cl2 corrosion resistance compared to binary NiAl alloys.
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Dates et versions

hal-01824401 , version 1 (27-06-2018)

Identifiants

Citer

Patrick Masset, Damien Texier, Michael Schütze. Corrosion Behavior of NiAl (1-x) Hfx (x= 0... 0.2) Alloys in Chlorine Based High Temperature Environments. 214th ECS Meeting , Oct 2008, Honolulu, United States. pp.35-42, ⟨10.1149/1.3224741⟩. ⟨hal-01824401⟩
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