Journal
SCRIPTA MATERIALIA
Volume 187, Issue -, Pages 301-306Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.scriptamat.2020.06.038
Keywords
Gradient nanograin; Fatigue property; Strain delocalization; Gradient cyclic deformation; Fatigue crack
Categories
Funding
- National Science Foundation of China (NSFC) [U1608257, 51931010]
- Key Research Program of Frontier Science and International partnership program, CAS [GJHZ2029]
- LiaoNing Revitalization Talents Program [XLYC1802026]
- NSFC [51601196]
- Youth Innovation Promotion Association CAS [2019196]
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Compared to conventional metals with homogeneous microstructures, heterogeneously structured materials with spatially gradient nanostructures exhibit superior mechanical properties, especially enhanced fatigue resistance under cyclic loading by suppressing the strain localization and damage accumulation. In this paper, the basic features of fatigue properties, cyclic deformation, and damage mechanism of gradient nanostructured metallic materials are reviewed. The challenges and prospects on exploring fatigue resistance of gradient nanostructured materials in the future are also addressed. (C) 2020 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.
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