文章基本信息

标题：High strength nanostructured Al-based alloys through optimized processing of rapidly quenched amorphous precursors
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作者：Song-Yi Kim ; Gwang-Yeob Lee ; Gyu-Hyeon Park 等
期刊名称：Scientific Reports
电子版ISSN：2045-2322
出版年度：2018
卷号：8
期号：1
页码：1090
DOI：10.1038/s41598-018-19337-7
语种：English
出版社：Springer Nature
摘要：bulk specimens exhibit 1433 MPa compressive yield strength and 1773 MPa maximum strength together with 5.6% plastic strain, respectively. The addition of Dy enhances the thermal stability of primary fcc Al in the amorphous Al-TM -RE alloy. The precipitation of intermetallic phases by crystallization of the remaining amorphous matrix plays important role to restrict the growth of the fcc Al phase and contributes to the improvement of the mechanical properties. Such fully crystalline nano- or ultrafine-scale Al-Ni-Co-Dy systems are considered promising for industrial application because their superior mechanical properties in terms of a combination of very high room temperature strength combined with good ductility.