Effect of alloying elements on magnesium alloy damping capacities at room temperature

Wan, Di; Hu, Ying lin; Ye, Shu ting; Li, Zhu min; Li, Li li; Huang, Yi

doi:10.1007/s12613-019-1789-6

Cited by 18 publications

(3 citation statements)

References 28 publications

(29 reference statements)

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“…Magnesium alloys emerged as a promising candidate for lightweight structural materials [1][2][3][4] in engineering applications due to their low density [5], high specific strength [6], good damping [7,8] and electromagnetic shielding [9,10]. The magnesium alloys have the potential for wide application fields such as aerospace, automotive, and telecommunications [11][12][13].…”

Section: Introductionmentioning

confidence: 99%

Effect of T4 treatment on the corrosion resistance of Mg-4Al-6Er-0.3Mn alloy

Liang,

Ma,

Qin

et al. 2024

Mater. Res. Express

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The Mg-Al alloys exhibit poor corrosion resistance when they exposed to Cl- attack. To solve this problem, Erbium (Er) and Manganese (Mn) are added to the Mg-4Al alloy and the Mg-4Al-6Er-0.3Mn is T4 treated to enhance the corrosion resistance of the alloy. Then the corrosion behaviors of the as-extruded alloy and the T4 alloy are investigated in this paper. It is found that the effective cathode Mg17Al12 is significantly reduced in the alloy due to the precipitation of Mg17Al12 being suppressed by Al2Er and the dissolution of the Mg17Al12 in the alloy. It is observed that the corrosion products transform from needle-like to tetrahedral-shaped corrosion products during the transformation process, which leads to severe pit corrosion. The results show that the T4 treatment can delay the transformation of the morphologies of the corrosion products, thereby improved the alloy corrosion resistance during the early stages of corrosion.

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Section: Introductionmentioning

confidence: 99%

Effect of T4 treatment on the corrosion resistance of Mg-4Al-6Er-0.3Mn alloy

Liang,

Ma,

Qin

et al. 2024

Mater. Res. Express

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“…Magnesium alloys are well known for their high vibration-damping capacity compared to other alloys. They have been highly regarded as materials that can protect products from external vibrations and reduce noise in the fields of electronic devices and transportation [ 1 , 2 , 3 ]. However, commercial magnesium materials are generally alloyed with various additive elements, such as Al or Ca, to improve their strength and mechanical properties.…”

Section: Introductionmentioning

confidence: 99%

Effect of Recrystallization Behavior of AZ31 Magnesium Alloy on Damping Capacity

Kim

et al. 2023

Materials

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For a wide industrial application of magnesium alloys, a method for imparting high damping properties while maintaining mechanical properties is required. Controlling the crystallographic texture seems to be useful, because dislocations are known to have a significant influence on the damping characteristics of magnesium alloys. In addition, textures are affected by the microstructure and texture variation when the deformation or annealing is applied. However, there were less reports about their effect on damping capacity. Therefore, the effect of twinning and annealing, which can affect the recrystallization, were investigated in this study. An AZ31 alloy was hot rolled at 673 K with a reduction ratio of 10% and 50%, and then annealed at 673 K and 723 K for 0.5, 1, 2, and 3 h, respectively. SEM-EBSD was used to examine the microstructure and texture. In addition, each specimen’s hardness and internal friction were contemporarily measured. As a result, hot rolling produced tensile twins and their fraction increased with internal friction when the reduction ratio increased. Due to annealing, a discontinuous type of static recrystallization occurred within the twinning grains, and was highly activated along with the increasing annealing temperature and the fraction of twinning. In the samples annealed at 723 K, the internal friction continuously increased over the annealing time, whereas in the samples annealed at 673 K, the decrease in dislocation density was delayed while the internal friction showed a relatively low value.

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“…9,10 In addition, magnesium alloys have better damping, good flowability, and higher machinability. 11,12 Mg-based and its alloys are incongruous to be used for bearings, pistons, and cylinder applications due to their low shear strength. 13–15 AZ91 Magnesium alloys were used mostly due to their good castability, high specific strength, and better corrosion resistance.…”

Section: Introductionmentioning

confidence: 99%

Influence of boron carbide content on dry sliding wear performances of AZ91D magnesium alloy

Aatthisugan

Murugesan

Rao

2022

Proceedings of the Institution of Mechanical Engineers, Part J:

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In this study, AZ91 magnesium alloy based metal matrix composites are made-up of bottom pouring stir casting with 0 wt.%, 1.5 wt.% and 3 wt.% boron carbide (B4C) particles reinforcements. The influence of hard reinforcements on mechanical properties such as hardness and tensile strength has been investigated for the casted composites samples. It was found that by adding 1.5 wt. % and 3 wt.% B4C particles, the Rockwell hardness value of 3.2% and 4.6%, Ultimate Tensile Strength (UTS) values of 15.5% and 26.3% of the composites increased respectively. The influence of B4C contents on AZ91D mg alloy wear study was carried out using pin on disc apparatus. Also, the effect of applied load (5N, 10N, and 20N) on wear properties was investigated. The results of the dry sliding wear tests show that AZ91D- B4C magnesium composite has less wear loss than the unreinforced AZ91D magnesium alloy. X-ray diffraction (XRD) analysis were performed for finding the various compounds such as MgO, B4C and Mg17Al12 present in the developed composites. Further, scanning electron microscopy (SEM) analysis were performed on the worn-out pin surfaces to investigate the wear pattern. These findings indicate that the addition of B4C content improved mechanical characteristics and wear resistance, which may also be used in the automotive and aerospace industries.

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Effect of alloying elements on magnesium alloy damping capacities at room temperature

Cited by 18 publications

References 28 publications

Effect of T4 treatment on the corrosion resistance of Mg-4Al-6Er-0.3Mn alloy

Effect of T4 treatment on the corrosion resistance of Mg-4Al-6Er-0.3Mn alloy

Effect of Recrystallization Behavior of AZ31 Magnesium Alloy on Damping Capacity

Influence of boron carbide content on dry sliding wear performances of AZ91D magnesium alloy

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