Simultaneously increasing the ductility and strength of nanostructured alloys
Simultaneously increasing the ductility and strength of nanostructured alloys
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DOI：
10.1002/adma.200600310
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发表时间：
2006-09-05
影响因子：
29.4
通讯作者：
Zhu, Yuntian T.
中科院分区：
文献类型：
--
作者：
Zhao, Yong-Hao;Liao, Xiao-Zhou;Zhu, Yuntian T.
通过沉淀Guinier-Preston（G-P）区、η '和η颗粒（曲线NS+P），实现了平均晶粒尺寸接近100 nm（曲线NS）的块状纳米结构Al合金的延展性和强度的同时增加。块体纳米结构材料通常具有高强度，但令人遗憾的是延展性低。所有以前的尝试，以提高纳米结构材料的延展性，牺牲了他们的屈服强度。这种策略适用于许多纳米结构的合金和复合材料。
Simultaneous increase of the ductility and strength of a bulk nanostructured Al alloy with an average grain size of similar to 100 nm (curve NS) has been achieved by precipitating Guinier-Preston (G-P) zones, eta', and eta particles (curve NS+P). Bulk nanostructured materials usually have high strength, but disappointingly low ductility. All previous attempts to enhance the ductility of nanostructured materials have sacrificed their yield strengths. This strategy is applicable to many nanostructured alloys and composites.