Novel insights on different treatment of magnesium alloys: A critical review

Elambharathi, B.; Kumar, Sudhir; Dhanoop, V.U.; Dinakar, S.; Rajkumar, S.; Sharma, Shubham; Kumar, Vineet; Li, Changhe; Eldin, Sayed M.; Wojciechowski, Szymon

doi:10.1016/j.heliyon.2022.e11712

Cited by 19 publications

(11 citation statements)

References 81 publications

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“…That is why 365 °C is chosen as the best treatment temperature, at which the E corr of the sample is 0.022398V, the I corr is 1.4288 × 10 −8 A cm −2 , and the corrosion rate is 3.0302 × 10 −4 mm a −1 . According to the electrochemical tests and the results of previous studies [24,25], it can be concluded that the corrosion resistance of the magnesium alloy has been improved with the increase of temperature in the range of 345 °C to 365 °C. This is because the microstructures of the magnesium alloy is changed after the heat treatment.…”

Section: Eis Testmentioning

confidence: 76%

“…Solid solution treatment and aging treatment are two popular heat treatment methods. Elambharathi et al [25] studied the mechanical properties and corrosion resistance of the AZ series Mg alloy under two heat treatments. The results showed that grain refinement of the Mg alloy occurred after the heat treatment, and the β-phase of the Mg alloy was dispersed in the α-phase and the corrosion resistance was improved.…”

Section: Introductionmentioning

confidence: 99%

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Preparation of corrosion-resistant surface of magnesium alloy and its performance study

Li,

Sun

2023

Mater. Res. Express

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The susceptibility of magnesium alloys to corrosion has largely hindered the wide application of magnesium alloys. a natural green non-polluting method was proposed in this study to successfully prepare a corrosion-resistant film layer with MgO as the main substance on the magnesium alloy substrate by a two-step water steam method followed by annealing treatment. The morphology, composition, structure and corrosion resistance of the coating were investigated by SEM, FTIR, XRD and electrochemical methods. The electrochemical results showed that the coating prepared by this method has good corrosion resistance, reducing corrosion current by about four orders of magnitude compared with the bare Mg alloy substrate, and the corrosion potential and corrosion rate are also increased in different degrees.

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Section: Eis Testmentioning

confidence: 76%

Section: Introductionmentioning

confidence: 99%

Preparation of corrosion-resistant surface of magnesium alloy and its performance study

Li,

Sun

2023

Mater. Res. Express

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“…This method is suitable for air cooling. Bi [18] is computed in Equation (2), Equation (1) can be derived as Equation (3).…”

Section: Conventional Lumped Capacitance Methodsmentioning

confidence: 99%

“…Magnesium alloys have wide application prospects because of their low density and high specific strength [1,2]. Solution treatment followed by water quenching or air cooling to obtain the supersaturated solid solution state [3], with subsequent artificial aging [4][5][6] is the conventional heat treatment for magnesium alloys. In the process, the temperature changes itself and residual stress (RS) induced by the temperature gradient in the cooling process will affect the properties of the material, for instance, the RS could reduce dimensional stability [7], mechanical properties [8], corrosion resistance [9], and fatigue properties [10].…”

Section: Introductionmentioning

confidence: 99%

Study on the Optimization of Heat Transfer Coefficient of a Rare Earth Wrought Magnesium Alloy in Residual Stress Analysis

Xie,

Wu,

et al. 2024

Metals

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To investigate the heat transfer coefficient (HTC) of a newly developed rare-earth wrought magnesium alloy under different cooling rates, the experiment of solution treatment followed by water quenching or air cooling process was carried out for calculation by lumped capacitance method (LCM) and optimized by inverse heat transfer method (IHTM), and cooling temperature curves were simulated afterward. In water quenching, the larger the temperature difference between the sample and water, the larger the maximum HTC, and the earlier it reached the maximum value, and in air cooling the HTC became larger with the airflow speeds increased. In LCM, the peak values of the HTC were 2840 W/(m2·°C) in water quenching and 54 W/(m2·°C) in air cooling. The corresponding HTC was 2388 W/(m2·°C) in IHTM. The maximum absolute average relative error (AARE) of temperature simulation in water quenching decreased from 8.46% in LCM to 2.45% in IHTM. The residual stress(RS) of a large conical component was simulated using both non-optimized and optimized HTC, the RS in the IHTM was ~30 MPa smaller than that in the ILCM, because the corresponding HTC was smaller, and the comparison of the simulation results with the measurements revealed that the RS using HTC in the IHTM is more accurate.

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“…Lightweight Mg-Al based alloys such as AZ31 alloy are very promising candidates to be used for weight reduction in transportations (aerospace and automotive) and the electronics industries and also as potential biodegradable implant materials in biomedical applications due to their low density, high specific strength, and biodegradability. [34][35][36][37][38][39] However, Mg-Al based alloys usually suffer from poor ductility and a rapid corrosion rate which significantly limits their industrial applications. [34,39,40] Mg alloyed with RE elements is now considered as an efficient route for improving the ductility of Mg-based alloys without compromising their strength.…”

Section: Introductionmentioning

confidence: 99%

Investigation of Microstructure and Texture Evolution in an AZ31/Mg–Gd Alloy Hybrid Metal Fabricated by High‐Pressure Torsion

et al. 2023

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High-pressure torsion (HPT) processing is successfully applied to fabricate a novel hybrid material from separate discs of AZ31 (Mg-3Al-1Zn, wt%) and Mg-0.6Gd (wt%) alloys by straining through numbers of rotations, N, of 1/4, 1/2, 5, 10, and 20 turns at room temperature. The microstructure and texture are investigated near the bonding interface through the disc diameter using electron backscatter diffraction (EBSD), scanning electron microscopy (SEM), and transmission electron microscopy (TEM). The microstructure exhibits two grain refinement regimes with the first occurring during an equivalent strain range, ε eq , of %0.3-72 and the second during ε eq from %72 to 517. The general texture changes from B-fiber to Y-fiber and C 2 -fiber through the HPT processing. The resultant microstructures and textures of this hybrid alloy are examined separately for the AZ31 and Mg-0.6Gd alloys and found controlled by the presence of twinning, slip systems, and second phases and the occurrence of different dynamic recrystallization mechanisms.

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Novel insights on different treatment of magnesium alloys: A critical review

Cited by 19 publications

References 81 publications

Preparation of corrosion-resistant surface of magnesium alloy and its performance study

Preparation of corrosion-resistant surface of magnesium alloy and its performance study

Study on the Optimization of Heat Transfer Coefficient of a Rare Earth Wrought Magnesium Alloy in Residual Stress Analysis

Investigation of Microstructure and Texture Evolution in an AZ31/Mg–Gd Alloy Hybrid Metal Fabricated by High‐Pressure Torsion

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