Abstract 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.

中文翻译：

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提高梯度纳米晶粒金属材料的抗疲劳性：抑制应变局部化和损伤累积

摘要 与具有均匀微观结构的传统金属相比，具有空间梯度纳米结构的异质结构材料表现出优异的机械性能，特别是通过抑制应变局部化和损伤积累来增强循环载荷下的抗疲劳性。本文综述了梯度纳米结构金属材料的疲劳性能、循环变形和损伤机制的基本特征。还讨论了未来探索梯度纳米结构材料抗疲劳性的挑战和前景。