Title: The Corrosion Behavior of Ni-Y Binary Alloys in Air and in Molten (0.62Li,0.38K) 2 CO 3 Mixture at 650℃
Abstract:The corrosion behavior of pure Ni and of binary Ni-Y alloys containing 1wt%,3wt%,5wt% Y,respectively,was investigated in air and in the eutectic (0.62Li,0.38K)2CO3 mixture at 650 ℃.The alloys are two-...The corrosion behavior of pure Ni and of binary Ni-Y alloys containing 1wt%,3wt%,5wt% Y,respectively,was investigated in air and in the eutectic (0.62Li,0.38K)2CO3 mixture at 650 ℃.The alloys are two-phase composed of γ-Ni solid solution and intermetallic compound Ni17Y2.The experimental results indicated that the corrosion of Ni-Y alloys in air and in molten salts,respectively,produced an external NiO scale with a small amount of Y2O3 and an internal oxidation region composed of Ni and Y2O3 resulting from the oxidation of the intermetallic phase Ni17Y2.The presence of yttrium in the alloy had a positive effect on the lithiation reaction of NiO during immersion in the melt.Read More
Publication Year: 2009
Publication Date: 2009-01-01
Language: en
Type: article
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