Influence of a high pulsed magnetic field on the tensile properties and phase transition of 7055 aluminum alloy

Li, Gui-Rong; Cheng, Jiang-Feng; Wang, Hongming; Li, Peisi; Li, Chaoqun

doi:10.1088/2053-1591/3/10/106507

Cited by 21 publications

(18 citation statements)

References 18 publications

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“…The treated sample contains more ductile dimple features with diverse sizes similar to those discussed by researchers who investigated the fractography of steels and aluminium alloys [21,22]. A few quasi-cleavage features are visible in both of the treated alloys that exhibit ductile torn edges [23] or peaks [24]. The fracture surface of untreated EN8 steel has more secondary cracks similar to those observed by Zhang et al [25] compared to the treated condition.…”

Section: Resultssupporting

confidence: 71%

Effect of Alternating Magnetic Field on the Fatigue Behaviour of EN8 Steel and 2014-T6 Aluminium Alloy

Akram

Babutskyi

Chrysanthou

et al. 2019

Metals

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The application of an alternating magnetic field (0.54 T) was observed to lead to an improvement in the fatigue endurance and an increase in Vickers microhardness and tensile strength of both EN8 steel and AA2014-T6 alloy. Fractography using scanning electron microscopy showed evidence of more ductile fracture features after treatment in contrast to untreated samples. The results of X-ray diffraction indicated formation of more compressive residual stresses following treatment; while examination by transmission electron microscopy showed evidence of fewer dislocations. In the case of the AA2014-T6 alloy; Guinier-Preston (GP) zones were also generated by the alternating magnetic field. However; the temperature increase during the treatment was too low to explain these observations. The results were attributed to the non-thermal effect of the alternating magnetic field treatment that led to depinning and movement of dislocations and secondary precipitation of copper.

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Section: Resultssupporting

confidence: 71%

Effect of Alternating Magnetic Field on the Fatigue Behaviour of EN8 Steel and 2014-T6 Aluminium Alloy

Akram

Babutskyi

Chrysanthou

et al. 2019

Metals

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“…However, the untreated sample (Figure 8a) exhibited more quasicleavage fracturing [36] in the fracture surface under examination, while the treated sample contained more ductile dimple features of diverse sizes (Figure 8b) similar to those discussed in [37,38] at the fracture surface. A few quasi-cleavage fractures were still exhibited by the treated sample; however, overall, the fracture surface consisted of ductile features such as torn edges [39], peaks [40] and ductile dimple features which can be categorised as large equiaxed dimples and microdimples (Figure 8b). The fracture surface of the untreated sample also exhibited secondary cracks similar to those observed in [41]; however, such cracks were not visible in the treated sample.…”

Section: Microstructurementioning

confidence: 99%

Effect of electropulsing on the fatigue resistance of aluminium alloy 2014-T6

Babutskyi

Mohin

Chrysanthou

et al. 2020

Materials Science and Engineering: A

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The effects of electropulsing on the fatigue resistance of aluminium alloy 2014-T6 were studied in relation to electric current amplitude, pulse duration, and number of repetitions. Utilising the Taguchi method, the present study identified the current amplitude and the duration of the electropulsing as the two critical treatment parameters for improved fatigue resistance. A 97% fatigue life improvement was achieved under the electropulsing conditions that were applied. An increase in microhardness and a decrease in electrical conductivity due to electropulsing were correlated with enhanced fatigue resistance in the alloy. Mechanisms related to the effects of the electropulsing treatment were elucidated based on observations from scanning electron microscopy (SEM) and transmission electron microscopy (TEM) as well as numerical simulation results. The mechanisms identified by observation included dislocation movement and the secondary precipitation of GP-zones. Further explication of these mechanisms was provided by the application of a "magnetic field'' model.

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“…In scientific papers [8][9][10][11] the method of pulsed electromagnetic treatment of metallic materials is overviewed. The method allows changing the material's mechanical properties under intense pulsed magnetic fields.…”

Section: Introductionmentioning

confidence: 99%

Method and apparatus for dynamic testing of structural joints

Mironovs

Zemčenkovs

Serdjuks

et al. 2023

J. Phys.: Conf. Ser.

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The dynamic testing technique is used during the design phase of structures and series production. This test evaluates the structural capacity, especially of the assemblies, to withstand different forces and rates of impact encountered under realistic operational conditions. This study proposes a magnetic pulse exciter for high-speed impact loading in dynamic tests because of its capability to provide single and repeatable pulse loading over a wide range of force up to 20 kN and pulse durations from 10 up to 1000 ms. The method transforms accumulated electrical energy in a capacitor bank into mechanical energy. For experimental investigations, flat and cylindrical coil devices were used for a capacitor-type pulse current generator. The proposed method has been experimentally validated on timber beams in a specified volume of force loading. The technique demonstrated a potential for controlling force and energy parameters. The effects of operating voltage on coil and ‘metal plate - coil’ distance on the amplitude of dynamic loading have been investigated. Aluminium and steel plates fastened to the object at the point of impact were used to improve excitation efficiency. The developed technique can be used in experimental studies on model joints and real objects.

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Influence of a high pulsed magnetic field on the tensile properties and phase transition of 7055 aluminum alloy

Cited by 21 publications

References 18 publications

Effect of Alternating Magnetic Field on the Fatigue Behaviour of EN8 Steel and 2014-T6 Aluminium Alloy

Effect of Alternating Magnetic Field on the Fatigue Behaviour of EN8 Steel and 2014-T6 Aluminium Alloy

Effect of electropulsing on the fatigue resistance of aluminium alloy 2014-T6

Method and apparatus for dynamic testing of structural joints

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