A new insight into LPSO transformation during multi-axial forging in Mg-Gd-Y-Zn-Zr alloy

Ramezani, S.M.; Zarei-Hanzaki, A.; Anoushe, A.S.; Abedi, H.R.; Minárik, Peter; Máthis, Kristián; Fekete, Klaudia

doi:10.1016/j.matlet.2020.127625

Cited by 18 publications

(2 citation statements)

References 16 publications

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“…Assuming, a slight amount of wear occurs for the component during application, the next immediate layer are also stacked up with ultra-fine grain structures making it impossible to penetrate a peened component. From the EDX analysis, depicted in figure 11 it is clearly seen an increase in the sub-surface oxygen (interstitial element) content which is attributed to the diffusion (rapid in nature) along the twinning boundaries (mechanical) and dislocation density bands when the aluminium alloy is plastically deformed [26][27][28][29].…”

Section: Sem and Edx Analysismentioning

confidence: 99%

Investigation of corrosion behavior on plastically deformed aa 7075 t651 by shot peening process

Abeens¹,

Murugananthan²

2021

Surf. Topogr.: Metrol. Prop.

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As AA 7075 T651 comprehensively is used in the marine naval vessels, the factor of corrosion performance always plays a significant role. In this work, an investigation is carried out to study the effect of corrosion behavior of shot peened AA 7075 T651 in 3.5% solution. From the potentio-dynamic polarization study, a 27.72% decrease is ascertained in the Icorr in shot peened specimen in correlation to unpeened aluminium alloy. A drop in Icorr from 1.883 to 1.480 mA cm−2 in shot peened specimen, indicates enhanced pitting corrosion resistance. An electrochemical impedance spectroscopy reveals a surge in the oxide layer formation on the peened surface aiding the drop in corrosion rate. Resistance to pit formations and improvement in oxygen deposition in the peened specimen is observed availing a Scanning Electron Microscopy (SEM) and Energy Dispersive x-ray analysis (EDX). The micro structures of the peened and unpeened specimen are captured using optical microscopy and Transmission electron microscopy (TEM). Micro-strain, dislocation density is also calculated from the x-ray diffraction analysis (XRD), in which grain size reduces by 28.07%, dislocation density surges by 38.65% and micro strain increases by 21.95% in peened specimen in correlation to unpeened AA 7075 T651. As a result of these improvements the corrosion resistance by 27.92% in the peened specimen in correlation to unpeened aluminium alloy.

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Section: Sem and Edx Analysismentioning

confidence: 99%

Investigation of corrosion behavior on plastically deformed aa 7075 t651 by shot peening process

Abeens¹,

Murugananthan²

2021

Surf. Topogr.: Metrol. Prop.

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“…Research in the field of forming has mainly focused on smelting forming, die-casting, and forging forming. However, the research on sheet metal stamping has not been reported [18][19][20][21][22].…”

Section: Introductionmentioning

confidence: 99%

Finite Element Simulation and Experimental Study of U-Bending Forming of High-Strength Mg-Gd-Y-Zn-Zr Alloy

Wang

Huang

Xing

et al. 2023

Metals

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In this study, the constitutive equation of the high-strength Mg-Gd-Y-Zn-Zr alloy sheet was established by tensile tests at different temperatures and different tensile rates. The U-shape bending forming process of the sheet was simulated under different process conditions by the DEFORM software. The variation rules of the stress field, strain field and free bending force of the formed parts were analyzed, and the accuracy of the finite element simulation was verified by the U-shaped bending test. Studies have shown that the equivalent stress, equivalent strain and free bending force decreased with the increase in forming temperature. With an increase in the stamping speed, the equivalent stress and free bending force increased, while the equivalent strain did not change significantly. Notably, the maximum difference in the free bending force between the test and simulation was less than 10%. The results of this study can provide guidance for the stamping forming of high-strength Mg-Gd-Y-Zn-Zr alloy sheets.

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Microstructure, Texture Evolution, and Dynamic Recrystallization Mechanism of Mg-Gd-Y-Zn-Zr Alloys with Large Height-to-Diameter Ratio Upsetting-Extrusion

Li,

Jia,

Yan

et al. 2024

J. of Materi Eng and Perform

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A new insight into LPSO transformation during multi-axial forging in Mg-Gd-Y-Zn-Zr alloy

Cited by 18 publications

References 16 publications

Investigation of corrosion behavior on plastically deformed aa 7075 t651 by shot peening process

Investigation of corrosion behavior on plastically deformed aa 7075 t651 by shot peening process

Finite Element Simulation and Experimental Study of U-Bending Forming of High-Strength Mg-Gd-Y-Zn-Zr Alloy

Microstructure, Texture Evolution, and Dynamic Recrystallization Mechanism of Mg-Gd-Y-Zn-Zr Alloys with Large Height-to-Diameter Ratio Upsetting-Extrusion

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