Progress in Strengthening and Toughening Mechanisms of Heterogeneous Nanostructured Metals
Received date: 2022-06-20
Online published: 2022-08-30
Supported by
National Natural Science Foundation of China(51931010);National Natural Science Foundation of China(92163202);Key Research Program of Frontier Science and International Partnership Program, Chinese Academy of Sciences(GJ-HZ2029);Liaoning Revitalization Talents Program(XLYC1802026)
Heterostructured metals typically exhibit excellent mechanical properties, such as high strength, plasticity, and fracture toughness, which are not present in conventional homogeneous materials. This is primarily due to the synergistic effects arising from the interactions between the internal components including the stress/strain gradients, geometrically necessary dislocations, and unique interfacial behavior. This study focuses on two typical heterogeneous nanostructures (laminated and nanotwinned) by reviewing the recent progress in their strengthening and toughening mechanisms. The analysis highlights the effects of the properties and sizes of the individual components, interfaces, and loading directions on the macroscopic strengthening and toughening behavior.
Lei LU , Huaizhi ZHAO . Progress in Strengthening and Toughening Mechanisms of Heterogeneous Nanostructured Metals[J]. Acta Metall Sin, 2022 , 58(11) : 1360 -1370 . DOI: 10.11900/0412.1961.2022.00303
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