Fracture, fatigue, and creep of nanotwinned metals

被引：0
|
作者：
Xiaoyan Li
Ming Dao
Christoph Eberl
Andrea Maria Hodge
Huajian Gao
机构：
[1] Tsinghua University,Centre for Advanced Mechanics and Materials, Applied Mechanics Laboratory, Department of Engineering Mechanics
[2] Massachusetts Institute of Technology,Department of Materials Science and Engineering
[3] University of Freiburg,Laboratory for Micro
[4] and Fraunhofer Institute for Mechanics of Materials, and Materials Mechanics, Institute for Microsystems Technology
[5] University of Southern California,Mork Family Department of Chemical Engineering and Materials Science
[6] Brown University,School of Engineering
来源：
MRS Bulletin | 2016年 / 41卷
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摘要：
As a relatively new class of hierarchically structured materials, nanotwinned (NT) metals exhibit an exceptional combination of high strength, good ductility, large fracture toughness, remarkable fatigue resistance, and creep stability. This article reviews current studies on fracture, fatigue, and creep of NT metals, with an emphasis on the fundamental deformation and failure mechanisms. We focus on the complex interactions among cracks, dislocations, and twin boundaries, the influence of microstructure, twin size, and twinning/detwinning on damage evolution, and the contribution of nanoscale twins to fatigue and creep under indentation and irradiation conditions. The article also includes critical discussions on the effects of twin thickness and grain size on the fracture toughness, fatigue resistance, and creep stability of NT metals.
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页码：298 / 304
页数：6
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