Stability, phase separation and oxidation of a supersaturated nanocrystalline Cu-33 at.% Cr thin film alloy

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• 作者：T.P. Harzer ; G. Dehm ; ^dehm@mpie.de
• 关键词：Nanocrystalline alloys ; Isothermal heat treatments ; Stability ; Spinodal decomposition ; Transmission electron microscopy
• 刊名：Thin Solid Films
• 出版年：2017
• 出版时间：1 February 2017
• 年：2017
• 卷：623
• 期：Complete
• 页码：48-58
• 全文大小：3044 K
• 卷排序：623

文摘

The Cu-33 at.% Cr film remains single phase for temperatures ≤ 300 °C. Phase separation takes place by spinodal decomposition. Grain boundary diffusion of Cr to the surface yields an external oxide scale. Cr diffusion coefficients in the body-centered cubic matrix are estimated.