Surface characteristics of high corrosion resistant Ni–Nb–Zr–Ti–Ta glassy alloys for nuclear fuel reprocessing applications期刊界 All Journals 搜尽天下杂志传播学术成果专业期刊搜索期刊信息化学术搜索

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Surface characteristics of high corrosion resistant Ni–Nb–Zr–Ti–Ta glassy alloys for nuclear fuel reprocessing applications

Authors:	Chunling Qin Katsuhiko Asami Hisamichi Kimura Wei Zhang Akihisa Inoue

Institution:	^aWPI Advanced Institute for Materials Research, Tohoku University, 2-1-1, Katahira, Aoba-ku, Sendai 980-8577, Japan;^bInstitute for Materials Research, Tohoku University, 2-1-1, Katahira, Aoba-ku, Sendai 980-8577, Japan

Abstract:	This work firstly discovered that the Ni₆₀Nb₁₅Zr₅Ti₁₅Ta₅ metallic glass exhibits high corrosion resistance in boiling 6 N HNO₃ solutions with and without Cr⁶⁺ ions, which may be of great potential for nuclear fuel reprocessing applications. The high corrosion resistance of the alloy is due to the formation of the passive film composed exclusively of Nb⁵⁺ and Ta⁵⁺ cations after immersion in the solution without Cr⁶⁺ ions, and Nb⁵⁺, Ta⁵⁺ and Cr³⁺ cations after immersion in the solution with Cr⁶⁺ ions.

Keywords:	Metallic glasses Corrosion resistance Nitric acid XPS analysis Surface characteristics
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