Enhanced mechanical properties of as-cast Mg-Al-Ca magnesium alloys by friction stir processing

Nasiri, Zahra; Khorrami, M. Sarkari; Mirzadeh, Hamed; Emamy, M.

doi:10.1016/j.matlet.2021.129880

Cited by 36 publications

(12 citation statements)

References 24 publications

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“…FSP significantly escalated the microhardness of the AZ61 alloy three times greater than the unmodified AZ61 alloy. FSP of Mg-7Al, Mg-4Al-3Ca, and Mg-2Al-5Ca alloys, according to Nasiri et al [149], resulted in considerable structure refinement and enhanced mechanical characteristics. The increase of tensile characteristics of FSPed alloys was due to the replacement of intergranular constituents with a homogeneous distribution of fine particles.…”

Section: Mechanical Performancementioning

confidence: 99%

Friction Stir Welding/Processing of Mg-Based Alloys: A Critical Review on Advancements and Challenges

et al. 2021

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Friction stir welding (FSW) and friction stir processing (FSP) are two of the most widely used solid-state welding techniques for magnesium (Mg) and magnesium alloys. Mg-based alloys are widely used in the railway, aerospace, nuclear, and marine industries, among others. Their primary advantage is their high strength-to-weight ratio and usefulness as a structural material. Due to their properties, it is difficult to weld using traditional gas- or electric-based processes; however, FSW and FSP work very well for Mg and its alloys. Recently, extensive studies have been carried out on FSW and FSP of Mg-based alloys. This paper reviews the context of future areas and existing constraints for FSW/FSP. In addition, in this review article, in connection with the FSW and FSP of Mg alloys, research advancement; the influencing parameters and their influence on weld characteristics; applications; and evolution related to the microstructure, substructure, texture and phase formations as well as mechanical properties were considered. The mechanisms underlying the joining and grain refinement during FSW/FSP of Mg alloys-based alloys are discussed. Moreover, this review paper can provide valuable and vital information regarding the FSW and FSP of these alloys for different sectors of relevant industries.

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Section: Mechanical Performancementioning

confidence: 99%

Friction Stir Welding/Processing of Mg-Based Alloys: A Critical Review on Advancements and Challenges

et al. 2021

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“…Due to the presence of thermally stable materials between Al-Ca metals, calcium-containing alloys showed more intense grain refinement than Mg-7Al alloy with Mg17Al12 unstable phase. The processed AX43 alloy with a grain size of 1.7 μm showed the best tensile properties [8].…”

Section: Introductionmentioning

confidence: 98%

Investigation of the effect of turbulent friction process parameters on the surface mechanical properties of AZ31B/CNT nanocomposite using Sobel sensitivity analysis

Mansouri¹,

Hooshangi²,

Salehi³

2022

MASM

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The perturbation friction process is a solid state method used to modify the surface, improve mechanical properties, and produce composites. In this research, the effect of effective parameters on the surface compositing of AZ31B / CNT alloy with carbon nanotubes has been investigated by the turbulent friction process method and by the Sobel sensitivity analysis method. Input parameters in this study were advance speed, rotation speed, weight percentage of carbon nanotubes and number of welding passes. Also considered outputs included hardness and weight loss. In order to analyze the results, Sobel sensitivity analysis has been used to investigate the qualitative and quantitative effect of inputs on outputs. The results of this study showed that the weight percentage of carbon nanotubes, rotation speed, number of welding passes and advancing speed affect hardness, respectively. Also, the weight percentage of carbon nanotubes, the number of welding passes, the rotation speed and the advancing speed affect the weight loss.

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“…The mechanical and corrosion properties of Mg can be improved via alloying and the application of thermomechanical processing routes such as hot extrusion. [6][7][8] In this regard, the activation of additional slip systems by alloying, [9] the fragmentation and dispersion of the eutectic constituents during hot working, [10] modification of texture, [11] and grain refinement by alloying and thermomechanical processing [12,13] are among the main reasons for the improvement of properties and strengthening. It is noteworthy that the hot extrusion process (like hot compression testing) has many variables such as the deformation temperature, [14] strain rate (controlled by ram speed), [15] and extrusion ratio, [16] which could significantly affect the extruded microstructure and the resultant properties.…”

Section: Introductionmentioning

confidence: 99%

Mechanical Properties and Corrosion Behavior of Biodegradable Mg–0.5Zr–0.5Ca–xZn Magnesium Alloys

et al. 2023

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Mechanical properties and in vitro corrosion behavior of biodegradable Mg–0.5Zr–0.5Ca–xZn alloys in the simulated body fluid (SBF) solution are investigated. Zinc addition leads to a remarkable grain refinement in the as‐cast condition, as well as the formation of Ca2Mg6Zn3 and Mg7Zn3 compounds. As a result, the lean Mg–0.5Zr–0.5Ca–1Zn alloy shows the best combination of mechanical properties with an ultimate tensile strength (UTS) of 182 MPa, total elongation of 9.5%, and tensile toughness of 13 MJ m−3, which reveals ≈80%, 72%, and 190% improvements compared to those obtained for the Mg–0.5Zr–0.5Ca alloy, respectively. This sample also exhibits improved corrosion behavior, where a decrease in the corrosion current density (iCorr) is recorded via the addition of 1 wt% Zn. However, higher Zn additions result in the formation of a quasi‐continuous eutectic network with the consequent deterioration of tensile properties and increased effect of microgalvanic couples. The extreme grain refinement induced by the dynamic recrystallization (DRX) remarkably improves the overall mechanical properties of the hot extruded alloy but increased the iCorr. Accordingly, the properties of Mg–0.5Zr–0.5Ca alloys can be tailored for biomedical applications via Zn addition and thermomechanical processing.

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Enhanced mechanical properties of as-cast Mg-Al-Ca magnesium alloys by friction stir processing

Cited by 36 publications

References 24 publications

Friction Stir Welding/Processing of Mg-Based Alloys: A Critical Review on Advancements and Challenges

Friction Stir Welding/Processing of Mg-Based Alloys: A Critical Review on Advancements and Challenges

Investigation of the effect of turbulent friction process parameters on the surface mechanical properties of AZ31B/CNT nanocomposite using Sobel sensitivity analysis

Mechanical Properties and Corrosion Behavior of Biodegradable Mg–0.5Zr–0.5Ca–xZn Magnesium Alloys

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