Enhanced mechanical properties due to nanocrystallization by isothermal annealing in Al₈₅Ni₉Er₆ glassy alloy

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• 作者：Jiaming Yin^a ; ^b ; Hongnian Cai^a ; ^b ; Xingwang Cheng^a ; ^b ; ^{chengxw@bit.edu.cn} ; Hongmei Zhang^a ; ^b ; Xinqiang Zhang^a ; ^b ; Ziqi Xu^a ; ^b
• 关键词：Metallic glass ; Nanocrystallization ; Annealing ; Mechanical properties
• 刊名：Journal of Alloys and Compounds
• 出版年：2017
• 出版时间：25 February 2017
• 年：2017
• 卷：695
• 期：Complete
• 页码：3048-3053
• 全文大小：1755 K
• 卷排序：695

文摘

This work investigated the relations for the crystallization and enhanced mechanical properties of Al85Ni9Er6 glassy alloy. The hardness of the alloy after annealed for 60 min and 90 min increased to 5.7 GPa and 5.55 GPa, respectively. The fcc-Al nanocrystals lead to hardening, the subsequent hardness decrease was caused by the reduction in the free volume. An optimum annealing time for nanocrystallization is beneficial for the mechanical properties in metallic glasses.