Current state and the future of aluminum alloy applications for automobiles

Ushio, Hideaki

doi:10.2464/jilm.56.580

Cited by 6 publications

(2 citation statements)

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“…Aluminum alloys have been widely used as key structural materials in automobiles [1,2], ships [3,4], bullet trains [5] and aircraft [6][7][8] to meet the comprehensive requirements of desired mechanical properties, weight reductions and fuel consumption improvements. Most of the aluminum in service mainly consists of the 2000 series (Al-Cu), the 5000 series (Al-Mg), the 6000 series (Al-Mg-Si) and the 7000 series alloys (Al-Zn-Mg-Cu).…”

Section: Introductionmentioning

confidence: 99%

Correlation among Microstructure, Texture, and Properties along the Thickness Direction in As-Hot-Rolled and As-Solution-Quenched Al7055 Thick Plates

Zhu

Yan

2021

MSF

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Both microstructure inhomogeneity and mechanical property diversity along the thickness direction in rolled thick aluminum plates have been considered to have a remarkable impact on the performance and properties of the products made from the plates. In this study, scanning electron microscopy (SEM) and electron backscattered diﬀraction (EBSD) characterizations of microstructure and texture types along the thickness directions of Al7055 thick plate specimens prepared using two conditions, hot-rolling and solution-quenching, were performed. To examine the mechanical properties, uniaxial tensile tests were also carried out on specimens machined from both types of thick plates, using a layered strategy along the thickness direction. The results indicate that both the microstructure and mechanical properties are inhomogeneous under the two conditions. Furthermore, it is evident that there is a hereditary relationship between the mechanical properties of the two plates—areas with higher yield strength in the as-hot-rolled plate correspond to areas with the higher yield strength in the as-solution-quenched plate

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Section: Introductionmentioning

confidence: 99%

Correlation among Microstructure, Texture, and Properties along the Thickness Direction in As-Hot-Rolled and As-Solution-Quenched Al7055 Thick Plates

Zhu

Yan

2021

MSF

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“…2) To compensate for this increase in weight, there are calls for new materials that can lighten car bodies. 3) AlMgSi alloys are lightweight materials whose high strength makes them a promising candidate for use in car bodies. In fact, they are already used in some vehicle components.…”

Section: Introductionmentioning

confidence: 99%

Formation of Corrosion-Resistant Films on Al–Zn–Mg Alloy by Steam Coating Using Acidic Zn(NO<sub>3</sub>)<sub>2</sub> Aqueous Solutions

et al. 2018

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Corrosion-resistant films were fabricated on AlZnMg alloy by steam coating using an acidic aqueous solution of Zn(NO 3) 2 at different concentrations. X-ray diffraction patterns and Fourier transform-infrared spectrometer spectra demonstrated that nitrate-type ZnAl layered double hydroxide (LDH) and ZnO films were formed on the AlZnMg surface by steam coating at temperatures of 373, 433, and 473 K, using Zn(NO 3) 2 aqueous solution at 1000 mM. At 513 K, £-AlO(OH) films were formed on the AlZnMg surface by steam coating using 1 to 100 mM Zn(NO 3) 2 aqueous solution. The corrosion resistance of the films was investigated by potentiodynamic polarization curve measurements, which revealed that the £-AlO(OH) films prepared by steam coating at 513 K using 1 mM of Zn(NO 3) 2 aqueous solution was the most effective treatment for suppression of pitting corrosion and anodic current density.

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Fretting wear in AZ31 magnesium alloy

Otsu

Yoshitake

2016

Transactions of the JSME (In Japanese)

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Fretting wear in magnesium alloy AZ31 was investigated in order to understand the fundamental tribological properties in magnesium alloy. Ball on disc type fretting test was conducted, in which the cyclic tangential force was applied by rotating a gear pear with the weight. The ball specimen was made of SUJ2 bearing steel, and the disc specimen was made of magnesium alloy AZ31. Normal load was applied in the range between 1000 and 2000 N, and tangential force was 100 N. It is shown in the results that the contact surface was deformed plastically after the test under static condition, and the plastic deformation increases with time. It is also found that the contact surface after the fretting test shows that wear area was occurred at the edge of contact area. Chemical reaction film was formed on the wear area, and energy dispersive X-ray spectroscopy analysis results show that the film consists of magnesium and oxygen. Slip region at the edge of contact area increased with time, and the area depends on the tangential coefficient. The maximum depth of deformed dent in fretting test at 1000 N, was greater than that in the test under static condition, and the deformation depends on the tangential coefficient.

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Current state and the future of aluminum alloy applications for automobiles

Cited by 6 publications

References 1 publication

Correlation among Microstructure, Texture, and Properties along the Thickness Direction in As-Hot-Rolled and As-Solution-Quenched Al7055 Thick Plates

Correlation among Microstructure, Texture, and Properties along the Thickness Direction in As-Hot-Rolled and As-Solution-Quenched Al7055 Thick Plates

Formation of Corrosion-Resistant Films on Al–Zn–Mg Alloy by Steam Coating Using Acidic Zn(NO<sub>3</sub>)<sub>2</sub> Aqueous Solutions

Fretting wear in AZ31 magnesium alloy

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