Effect of heat treatment on microstructure and corrosion behavior of Mg-5Al-1Zn-1Sn magnesium alloy

Ma, Yinlong; Xiong, Hongwei; Chen, Baoyi

doi:10.1016/j.corsci.2021.109759

Cited by 49 publications

(7 citation statements)

References 38 publications

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“…The Nyquist plots reveal two capacitive loops and one inductive loop. The capacitive loop at high frequency is attributed to the formation of corrosion film on the alloy surface, and that at middle frequency is ascribed to the charge transfer process of Mg/Mg 2+ at the double layer [ 41 ]. The diameter of the middle-frequency capacitive loop is near to the charge transfer resistance of the working electrode [ 42 ].…”

Section: Resultsmentioning

confidence: 99%

Effect of Extrusion on Mechanical Property, Corrosion Behavior, and In Vitro Biocompatibility of the As-Cast Mg-Zn-Y-Sr Alloy

Huang,

Yang,

et al. 2024

Materials

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The effect of extrusion on the microstructure, mechanical property, corrosion behavior, and in vitro biocompatibility of as-cast Mg-1.5Zn-1.2Y-0.1Sr (wt.%) alloy was investigated via tensile tests, electrochemical methods, immersion tests, methylthiazolyl diphenyltetrazolium bromide (MTT), and analytical techniques. Results showed that the as-cast and as-extruded Mg-1.5Zn-1.2Y-0.1Sr alloys comprised an α-Mg matrix and Mg3Y2Zn3 phase (W-phase). In the as-cast alloy, the W-phase was mainly distributed at the grain boundaries, with a small amount of W-phase in the grains. After hot extrusion, the W-phase was broken down into small particles that were dispersed in the alloy, and the grains were refined considerably. The as-extruded alloy exhibited appropriate mechanical properties that were attributed to refinement strengthening, dispersion strengthening, dislocation strengthening, and precipitation strengthening. The as-cast and as-extruded alloys exhibited galvanic corrosion between the W-phase and α-Mg matrix as the main corrosion mechanism. The coarse W-phase directly caused the poor corrosion resistance of the as-cast alloy. The as-extruded alloy obtained via hydrogen evolution and mass loss had corrosion rates of less than 0.5 mm/year. MTT, high-content screening (HCS) analysis, and cell adhesion tests revealed that the as-extruded alloy can improve L929 cell viability and has great potential in the field of biomedical biodegradable implant materials.

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Section: Resultsmentioning

confidence: 99%

Effect of Extrusion on Mechanical Property, Corrosion Behavior, and In Vitro Biocompatibility of the As-Cast Mg-Zn-Y-Sr Alloy

Huang,

Yang,

et al. 2024

Materials

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“…One at the medium and high frequency which is attributed to the charge transfer process of Ti/Ti 4+ at the double layer formed at the samples surface and the other at the low frequency which is closed to impedance produced by oxide or porous corrosion product film [21][22][23]. The diameter of the first capacitive loops is equal to the charge transfer resistance of the samples [24,25]. As shown in figure 5(a), the radius of the capacitive loops increases gradually with increasing the carbon content, indicated the increasing corrosion resistance.…”

Section: Eis Measurementsmentioning

confidence: 99%

Enhanced strength and corrosion resistance in as-cast TA10 alloys via interstitial carbon solute

Yang

Wang

et al. 2022

Mater. Res. Express

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The addition of interstitial elements often has a significant impact on the macroscopic performances of structural alloys. Here, we report a systematic study on the microstructure, corrosion behavior and mechanical properties of a series of as-cast Ti-0.3Mo-0.8Ni-xC (x = 0.09, 0.12 and 0.15 wt.%) alloys. A typical basket-weave microstructure appears in all specimens, characterized by the lamellar α-phase and intergranular retained β-phase without TiC precipitates existed in prior β grain boundary. Based on the electrochemical and immersion tests, doping with C element can significantly improve the corrosion resistance of TA10 alloys; with increasing the carbon content, the corrosion current density decreases from 13.58 to 3.54 μA·cm-2, the corrosion potential increases from -0.318 to -0.237 V vs. SCE, the corrosion rate reduces from 15 mm/a to 7.5 mm/a, along with an elevated pitting and crevice corrosion resistance. Moreover, the mechanical properties of TA10 alloys, such as the strength and hardness, can also be enhanced via C alloying. Our results indicate that the addition of interstitial elements should be a potential effective mean to accommodate the comprehensive performances of TA10 alloys.

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“…At 2 q it is 58.8°, but the intensity of the diffraction peak is weak. Based on the analysis it is considered to be the structural peak of Mg-Al LDH, which belongs to the carbonate anion of the Mg 1-x Al x (OH) 2 (CO 3 )x/2-nH 2 O (Mg-Al LDH) intercalation [23]. The XRD results show that after the two-step treatment, some Mg elements on the alloy surface react with H, O and C elements to form MgO and a small amount of Mg-Al LDH.…”

Section: Surface Composition Analysismentioning

confidence: 99%

“…Different heat treatment temperatures can have different effects on the samples, and proper heat treatment can improve the mechanical properties and corrosion resistance of magnesium alloys. So far many scholars have studied the heat treatment of magnesium alloys [23,24]. Solid solution treatment and aging treatment are two popular heat treatment methods.…”

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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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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Effect of heat treatment on microstructure and corrosion behavior of Mg-5Al-1Zn-1Sn magnesium alloy

Cited by 49 publications

References 38 publications

Effect of Extrusion on Mechanical Property, Corrosion Behavior, and In Vitro Biocompatibility of the As-Cast Mg-Zn-Y-Sr Alloy

Effect of Extrusion on Mechanical Property, Corrosion Behavior, and In Vitro Biocompatibility of the As-Cast Mg-Zn-Y-Sr Alloy

Enhanced strength and corrosion resistance in as-cast TA10 alloys via interstitial carbon solute

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

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