Grain size effects on high cycle fatigue behaviors of pure aluminum

Wang, B.B.; An, X.H.; Xue, P.; Liu, Fengchao; Ni, D.R.; Xiao, B.L.; Liu, Y.D.; Ma, Zhiyuan

doi:10.1016/j.ijfatigue.2023.107556

Cited by 10 publications

(8 citation statements)

References 63 publications

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“…Commonly, the larger the grain size, the higher the hardness, and the fatigue performance. 12,13 If the three aspects are implemented simultaneously, the fatigue performance will be effectively improved, while if only one or two of them are achieved, the improving effect may be reduced, and even cause a counterproductive effect.…”

Section: Introductionmentioning

confidence: 99%

“…The enhancement of fatigue performance depends on the comprehensive optimization of the three factors, 9–11 among which the superficial hardness can be reflected partly by the microstructure such as grain size. Commonly, the larger the grain size, the higher the hardness, and the fatigue performance 12,13 . If the three aspects are implemented simultaneously, the fatigue performance will be effectively improved, while if only one or two of them are achieved, the improving effect may be reduced, and even cause a counterproductive effect.…”

Section: Introductionmentioning

confidence: 99%

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A study of shot peening and spinning rolling on fatigue of Al 7075 alloy samples

Guan,

Zhang,

Gong

et al. 2024

Fatigue Fract Eng Mat Struct

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Surface mechanical strengthening is an effective way to improve the fatigue performance, among which surface rolling has been vastly utilized for its significant enhancement in fatigue strength. However, traditional rolling process is only suitable for components with rotational symmetry, limiting its application. Herein, a newly developed technology named “spinning rolling (SR)” was developed to strengthen the surfaces of platy components. A common Al alloy, 7075, was selected for verifying the effect. It is found that compared with the most popular technology, shot peening (SP), SR can provide deeper and higher residual stress, lower surface roughness, and comparable hardening layer, and consequently, significantly higher fatigue lives. Accordingly, there is a transition in the fatigue crack source from point‐like to line‐like, confirming a strong crack propagation resistance along depth direction. This study indicates the advantages of the SR technology, providing a greater resistance against fatigue damage of platy components.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

A study of shot peening and spinning rolling on fatigue of Al 7075 alloy samples

Guan,

Zhang,

Gong

et al. 2024

Fatigue Fract Eng Mat Struct

View full text Add to dashboard Cite

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“…Its content in the earth's crust is as high as 7.73%, ranking third, following only oxygen and silicon, which makes it the most abundant of the metallic elements. The tensile strength of pure aluminum (with an aluminum content not less than 99.60%) is 70-130 MPa, its elongation rate is 6-43%, and its hardness is 35 HB [2][3][4][5][6][7][8][9]. An aluminum alloy is made by adding some other elements to pure aluminum.…”

Section: Introductionmentioning

confidence: 99%

A Review of the Laser Cladding of Metal-Based Alloys, Ceramic-Reinforced Composites, Amorphous Alloys, and High-Entropy Alloys on Aluminum Alloys

Zhao,

Shi,

Wang

et al. 2023

Lubricants

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As one of the lightest structural metals, the application breadth of aluminum alloys is, to some extent, constrained by their relatively low wear resistance and hardness. However, laser cladding technology, with its low dilution rate, compact structure, excellent coating-to-substrate bonding, and environmental advantages, can significantly enhance the surface hardness and wear resistance of aluminum alloys, thus proving to be an effective surface modification strategy. This review focuses on the topic of surface laser cladding materials for aluminum alloys, detailing the application background, process, microstructure, hardness, wear resistance, and corrosion resistance of six types of coatings, namely Al-based, Ni-based, Fe-based, ceramic-based, amorphous glass, and high-entropy alloys. Each coating type’s characteristics are summarized, providing theoretical references for designing and selecting laser cladding coatings for aluminum alloy surfaces. Furthermore, a prediction and outlook for the future development of laser cladding on the surface of aluminum alloys is also presented.

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“…Tensile and fatigue resistance of metallic materials greatly depends on grain size and the effect of the misorientation angle on the propagation of tiny and sharp defects [1][2][3][4][5][6][7]. In order to improve mechanical and fatigue properties, the interaction between defects and GB has to be investigated.…”

Section: Introductionmentioning

confidence: 99%

“…In order to improve mechanical and fatigue properties, the interaction between defects and GB has to be investigated. Previous experimental and computational investigations have established that the GB works as a barrier that blunts the tip and arrests the propagation of small cracks [3,6,7]. In nanocrystals of aluminum (Al), the volume fraction of GBs significantly affects the mechanical response of the material [8].…”

Section: Introductionmentioning

confidence: 99%

Effects of Grain Boundary Misorientation Angle on the Mechanical Behavior of Al Bicrystals

Velilla-Díaz,

Zambrano

2023

Nanomaterials

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This research article explores the effect of grain boundary (GB) misorientation on the mechanical behavior of aluminum (Al) bicrystals by means of molecular dynamics (MD) simulations. The effect of GB misorientation on the mechanical properties, fracture resistance, and crack propagation are evaluated under monotonic and cyclic load conditions. The J-integral and the crack tip opening displacement (CTOD) are assessed to establish the effect of the GB misorientation angle on the fracture resistance. The simulations reveal that the misorientation angle plays a significant role in the mechanical response of Al bicrystals. The results also evidence a gradual change in the mechanical behavior from brittle to ductile as the misorientation angle is increased.

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Grain size effects on high cycle fatigue behaviors of pure aluminum

Cited by 10 publications

References 63 publications

A study of shot peening and spinning rolling on fatigue of Al 7075 alloy samples

A study of shot peening and spinning rolling on fatigue of Al 7075 alloy samples

A Review of the Laser Cladding of Metal-Based Alloys, Ceramic-Reinforced Composites, Amorphous Alloys, and High-Entropy Alloys on Aluminum Alloys

Effects of Grain Boundary Misorientation Angle on the Mechanical Behavior of Al Bicrystals

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