Microstructure and fatigue performance of friction stir welded joints of 2A12‐T4 and 7075‐T6 dissimilar aluminum alloy

Zhang, D.F.; Tang, Qiyun; Wei, Ting; Lin, Yuan; Chen, X.W.; Xia, Jing

doi:10.1002/mawe.201900113

Cited by 4 publications

(3 citation statements)

References 10 publications

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“…Wang et al [7] analyzed the microstructure and properties of the friction stir joining zone of 2195-T8/2219-T87 dissimilar aluminum alloy and obtained that the joining zone showed a basin shape, the grain size of the heat-affected zone of the joining zone dramatically changed, and the hardness of the joining zone was the highest on the side of 2195-T8 aluminum alloy and the lowest. fang et al [8] studied the friction stir lap of 2a12-T4/7a09-T6 aluminum alloy and obtained that the interface curve between the lap plates was curved when the lap was from 2a12-T4 (1.2 mm) to 7a09-T6 (4 mm). Moreover, when the lap is from 7a09-T6 (4 mm) to 2a12-T4 (1.2 mm), the surface curve between the lap plate bending is small in a horizontal state.…”

Section: Introductionmentioning

confidence: 99%

Analysis of the Microstructure and Hardness of Aluminum Alloy Gradient Plate Prepared by Friction Stir

Weiwei,

Jiafei,

et al. 2023

Archives of Metallurgy and Materials

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The aluminum alloy performance gradient plate was prepared by friction stir joining. analysis results of the macro morphology, microstructure, and hardness of the aluminum alloy performance gradient plate prepared under various parameters show that when the feed speed of the stirring tool is 250 mm/min, the downward pressure of the stirring tool is 6.6 mm, and the rotation speed of the stirring tool changes from 200 rpm to 800 rpm. The macroscopic morphology of the aluminum alloy gradient plates prepared by the method first changed from burr to smooth, and vice versa. There is a different cross-section morphology of the prepared aluminum alloy gradient plates, however, the aluminum alloy plates are stirred and involved with each other, and the grains of the prepared plates are refined. The hardness of the upper and lower surfaces of the aluminum alloy gradient sheet decreases, whereas that of the upper surface of the side increases, and that of the middle and bottom sides also decreases. However, the hardness of the middle side of the sheet prepared with the rotation speed of the stirring tool at 800 rpm increases, but that of the bottom side still decreases. obtained through analysis that the performance of the aluminum alloy gradient sheet prepared at the stirring tool rotation speed of 500 rpm increases in equal proportion to achieve a good performance gradient change.

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Section: Introductionmentioning

confidence: 99%

Analysis of the Microstructure and Hardness of Aluminum Alloy Gradient Plate Prepared by Friction Stir

Weiwei,

Jiafei,

et al. 2023

Archives of Metallurgy and Materials

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show abstract

Section: Introductionmentioning

confidence: 99%

“…Aluminum and aluminum alloys were widely used in automation areas and aerospace industries because of its excellent characteristics that include lower density, high strength properties and easy molding. [1][2][3] As an aviation material, 2024 aluminum alloy was widely used in aircraft fuselages. Aircraft located at coastal airports flew or parked in high humidity, high salt marine environments, where seawater or the humid marine atmosphere had caused serious corrosion damage to the aluminum alloy components of the aircraft.…”

Section: Introductionmentioning

confidence: 99%

Role of rare‐earth Y addition on formation and anticorrosion properties of MAO coating on 2024 aviation aluminum alloy

Zhang

Ran

Chen

et al. 2022

Int J Applied Ceramic Tech

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Different ceramic coatings were prepared on the surface of 2024 aviation aluminum alloy using micro-arc oxidation process in silicate based electrolyte combined with the rare earth based compound Y(NO 3 ) 3 ⋅6H 2 O. The thickness, hardness of the coating and conductivity of electrolyte were tested using relative devices, morphology and chemical composition were studied by scanning electron microscope and energy dispersive spectroscope, respectively. The phase composition of the coatings was characterized by X-ray diffraction and X-ray photoelectron spectroscopy. Furthermore, the corrosion resistance of the coating was evaluated by an electrochemical workstation. The results showed that the addition of Y(NO 3 ) 3 ⋅6H 2 O could improve the thickness and hardness of the coating. The morphological observation of the coating showed that Y(NO 3 ) 3 ⋅6H 2 O was successfully incorporated into the ceramic layer and that the coating had the smallest porosity at 1.5 g/L Y(NO 3 ) 3 . The phase composition of the coating was mainly γ-Al 2 O 3 , α-Al 2 O 3 , SiO 2 , Y 2 O 3 , and AlPO 4 . The corrosion resistance of coating in simulated seawater with the addition of Y(NO 3 ) 3 ⋅6H 2 O was significantly improved, and the values of |Z| 0.01 Hz and corrosion rate of the coating reached the maximum and minimum at 1.5 g/L Y(NO 3 ) 3 , which were 5.63 × 10 5 Ω cm 2 and 7.444 × 10 −4 mm/a, respectively.

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First-Principles Investigation of the Structural, Mechanical, and Thermodynamic Properties of Hexagonal and Cubic MoAl5 Alloy

Pan

2021

J. of Materi Eng and Perform

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The improvement in overall properties is a big challenge for the development of high-temperature materials. The refractory Al-rich MoAl 5 is a potential high temperature alloy due to the excellent oxidation resistance and high mechanical properties. However, the correlation between structural and overall properties of MoAl 5 is unclear. In this work, the structural stability, elastic and thermodynamic properties of MoAl 5 are studied by the first-principles calculations. Two phases: hexagonal and cubic structures, are considered. The result shows that the hexagonal MoAl 5 is a table phase. Compared to the cubic MoAl 5 , the hexagonal MoAl 5 exhibits high bulk modulus, shear modulus and Young modulus due to the strong localized hybridization between Mo and Al. Here, it is found that the calculated bulk modulus, shear modulus and Young modulus of the hexagonal MoAl 5 are 119, 98 and 230GPa. Finally, the high temperature thermodynamic properties of MoAl 5 are related to the vibration of Al atom and Al-Mo bond, which is demonstrated by the density of state and chemical bonding.

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Microstructure and fatigue performance of friction stir welded joints of 2A12‐T4 and 7075‐T6 dissimilar aluminum alloy

Cited by 4 publications

References 10 publications

Analysis of the Microstructure and Hardness of Aluminum Alloy Gradient Plate Prepared by Friction Stir

Analysis of the Microstructure and Hardness of Aluminum Alloy Gradient Plate Prepared by Friction Stir

Role of rare‐earth Y addition on formation and anticorrosion properties of MAO coating on 2024 aviation aluminum alloy

First-Principles Investigation of the Structural, Mechanical, and Thermodynamic Properties of Hexagonal and Cubic MoAl5 Alloy

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