Summary of “Magnesium Vision 2020: A North American Automotive Strategic Vision for Magnesium”

Cole, Gerald S.

doi:10.1002/9781118859803.ch5

Cited by 16 publications

(14 citation statements)

References 3 publications

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“…In recent years, much interest has been generated in applying magnesium alloys for stress-bearing applications in the automotive and aerospace industries [1,2]. Unfortunately, magnesium is high in the electrochemical series, so the metal is highly susceptible to galvanic corrosion when contact is made with other metals.…”

Section: Introductionmentioning

confidence: 99%

Microstructure of Laser Re-Melted AlCoCrCuFeNi High Entropy Alloy Coatings Produced by Plasma Spraying

Yue

Xie

Lin

et al. 2013

Entropy

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An AlCoCrCuFeNi high-entropy alloy (HEA) coating was fabricated on a pure magnesium substrate using a two-step method, involving plasma spray processing and laser re-melting. After laser re-melting, the microporosity present in the as-sprayed coating was eliminated, and a dense surface layer was obtained. The microstructure of the laser-remelted layer exhibits an epitaxial growth of columnar dendrites, which originate from the crystals of the spray coating. The presence of a continuous epitaxial growth of columnar HEA dendrites in the laser re-melted layer was analyzed based on the critical stability condition of a planar interface. The solidification of a columnar dendrite structure of the HEA alloy in the laser-remelted layer was analyzed based on the Kurz-Giovanola-Trivedi model and Hunt's criterion, with modifications for a multi-component alloy.

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Section: Introductionmentioning

confidence: 99%

Microstructure of Laser Re-Melted AlCoCrCuFeNi High Entropy Alloy Coatings Produced by Plasma Spraying

Yue

Xie

Lin

et al. 2013

Entropy

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“…Magnesium alloys are structural materials with favorable properties such as low density, high specific strength, high specific stiffness, good vibration dampening characteristics, and excellent castability and have been extensively studied. e use of magnesium material in cars will increase by 15% (∼227 kg) by 2020 based on future projections for magnesium [1,2]. In addition, magnesium alloys are well-known damping materials [3][4][5][6].…”

Section: Introductionmentioning

confidence: 99%

Optimization of Magnesium Alloy Wheel Dynamic Impact Performance

Jiang

Liu

Lyu

et al. 2019

Advances in Materials Science and Engineering

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Designing lightweight and comfortable automotive vehicles is a primary aim of the industry. Lightweight wheel designs can have a negative effect on the dynamic impact performance of the wheel; therefore, striking a balance between these two factors is a key objective in the design of automotive vehicles. Magnesium alloy wheels were investigated as magnesium alloy has damping performance advantages over some metal materials. Damping test methods were designed to establish the damping performance parameters of the magnesium alloy material. A finite element analysis model of magnesium alloy wheels was established with certain boundary conditions and constraints. The applicability of the model was verified by free modal evaluation of the wheel. Dynamic impact simulation analysis of the designed wheels was carried out, and the dynamic speed responses of magnesium alloy wheels under the impact of a dynamic load on the road surface were obtained. Comparison of the dynamic impact performance of magnesium and aluminum alloy wheels with the same structure showed that the magnesium alloy wheel achieved the target weight reduction of 32.3%; however, the dynamic impact performance was reduced. In order to realize the lightweight design, the dynamic impact performance of the magnesium alloy wheel should not be inferior to that of the aluminum alloy wheel; therefore, the design of the magnesium alloy wheel structure was optimized. The structural design optimization of the magnesium alloy wheel was carried out by defining the structural parameters of the wheel and using the acceleration and shock response of the wheel as the outputs. The optimization of weight reduction and dynamic impact performance of magnesium alloy wheels was achieved. Consequently, the designed magnesium alloy wheel was shown to have improved ride comfort while satisfying wheel structural performance standards and providing lightweight design.

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“…This makes them very useful, for example, for structural components in automotive industry to produce lightweight vehicles [1]. The vehicle weight can be reduced 131 kg by using magnesium alloys instead of steel or aluminum alloys [2]. Deformation under high strain rates usually occurs during car crashes, but so far, only a few researchers have tested deformation of magnesium alloys under these conditions.…”

Section: Introductionmentioning

confidence: 99%

Deformation mechanism of highly textured AZ31 sheet under high strain rates

Liu¹,

Mao²,

Liu³

et al. 2017

Materialwissenschaft Werkst

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In this study, in‐plane tension behavior of AZ31 magnesium sheet was measured in rolling direction, transverse direction and 45° direction under high strain rates of 600 s‐1, 1200 s‐1 and 2400 s‐1 at room temperature using a Split Hopkinson Tension Bar (SHTB). The microstructures after high strain rates deformation were observed by optical micrography. The anisotropic behavior was negligible and marginally positive strain rate effects were observed in all deformation directions. Texture analysis of the sheet demonstrated that three possible deformation mechanisms could apply to AZ31 magnesium alloy sheet under high strain rates tension, those are {101‾1} contraction twinning and/or {101‾1} ‐{101‾2} double twinning, prismatic slip and pyramidal slip. The volume fraction of twinning was decreased with strain rate increasing. Dynamic recrystallization took place upon the strain rate of 2400 s‐1 and the dynamic recrystallization mechanism was attributed to the twinning‐induced dynamic recrystallization.

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Summary of “Magnesium Vision 2020: A North American Automotive Strategic Vision for Magnesium”

Cited by 16 publications

References 3 publications

Microstructure of Laser Re-Melted AlCoCrCuFeNi High Entropy Alloy Coatings Produced by Plasma Spraying

Microstructure of Laser Re-Melted AlCoCrCuFeNi High Entropy Alloy Coatings Produced by Plasma Spraying

Optimization of Magnesium Alloy Wheel Dynamic Impact Performance

Deformation mechanism of highly textured AZ31 sheet under high strain rates

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