Lightweight Material: Aluminium High Silicon Alloys in the Automotive Industry

Alshmri, F.

doi:10.4028/www.scientific.net/amr.774-776.1271

Cited by 19 publications

(9 citation statements)

References 14 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Since it is related to important factors such as product performance and price, the choice of materials for the product is critical. High-strength steels, aluminum alloys, magnesium alloys, plastics, and composite materials are all lightweight materials [15][16][17][18]. Lai et al [19] focus on the recent experience achieved by Fiat in introducing HSS up to reach a share higher than 60% in weight applying and developing new methodologies to solve in the design phase any criticality arising from the use of this material.…”

Section: Materials Lightweightmentioning

confidence: 99%

Lightweight Research in Engineering: A Review

Jiao

et al. 2019

Applied Sciences

View full text Add to dashboard Cite

In the field of mechanical equipment manufacturing, the focus of research and development is not on weight reduction, but on how to choose between the rigidity and performance of components (such as strength or flexibility). For this contradiction, lightweight is one of the best solutions. The problems associated with lightweight were initially considered and systematically studied in aircraft manufacturing in engineering. Therefore, lightweight has been greatly developed in aviation research and has played an increasingly important role in construction machinery. This paper presents a brief description of the current status of lightweight in machinery by reviewing some significant progress made in the last decades. Potential research topics are also discussed from the four aspects of material, structure, bionics, and manufacturing, and they forecast the development trend of lightweight in the future construction machinery. The entire body of literature about the field is not covered due to the limitation of the length of paper. The scope of this review is limited and closely related to the development of lightweight technology in engineering applications.

show abstract

Section: Materials Lightweightmentioning

confidence: 99%

Lightweight Research in Engineering: A Review

Jiao

et al. 2019

Applied Sciences

View full text Add to dashboard Cite

show abstract

“…For example, rapid solidification increases radically the silicon solubility in aluminum lattice. High‐silicon aluminum alloys are used in applications where a low coefficient of expansion and increased wear resistance are needed, for example, in automotive engines . Nano structuration is normally introduced by mechanical straining of materials by technologies of severe plastic deformation or excessive cold deformation (rolling, extrusion).…”

Section: Aluminum Alloys and Nano‐reinforced Materialsmentioning

confidence: 99%

Solid State Processing of Aluminum Matrix Composites Reinforced with Nanoparticulate Materials

et al. 2018

View full text Add to dashboard Cite

A simple powder metallurgy route is investigated at Empa for producing aluminum matrix nanocomposites. High energy ball milling has proven to be an efficient method for dispersing the nanoparticles into the matrix even up to high amount. The compaction of these blends at moderate temperature leads to dense nanocomposite materials with high strength whatever the nature of the reinforcement. Hot pressing, spark plasma sintering, and hot isostatic pressing induce the same tensile properties at rupture but higher yield strength can be observed for the simple hot pressing process. High strength can be only combined with high ductility for nanoparticle content below 1 vol%. These outstanding properties are achieved thanks to a homogenous nanoparticle dispersion as well as a bimodal grain size distribution with fine (<300 nm) and coarser grains (a few microns). The materials do not require subsequent heat or work hardening treatment and exhibit better or similar properties as the conventional high strength aluminum alloys. Finally, it is demonstrated that friction stir welding is a valuable process for joining these nanocomposites.

show abstract

“…If there is 12.6 wt.% Si in the Al-Si alloy, it is the eutectic alloy. The alloy is hypo and hyper eutectic if the percentage of Si in the Al-Si alloy is lower and higher than 12.6 wt.%, respectively [9,10]. The mechanical properties of Al-Si alloys are enhanced in higher Si added alloys, but after the eutectic composition, the strength properties start to deteriorate, as coarse polyhedral particles appear after eutectic composition, which is in fact, primary silicon [11].…”

Section: Introductionmentioning

confidence: 99%

Electrochemical corrosion performance of Si-doped Al-based automotive alloy in 0.1 M NaCl solution

Nur

Khan

Sharma

et al. 2022

J. Electrochem. Sci. Eng.

View full text Add to dashboard Cite

The aim of this study is to investigate the electrochemical corrosion behavior of Al-Si automotive alloys with different levels of Si doping in 0.1 M NaCl solution at room temperature. The study was performed by electrochemical method, using potentiodynamic polarization and electrochemical impedance spectroscopy techniques. The condition of surfaces was characterized by both optical and scanning electron microscopy. Both the EIS and Tafel analyses revealed that the corrosion resistance was improved with the addition of Si up to the eutectic point due to the formation of protective oxide films. The higher Si added alloys showed lower values of current density, while the corrosion potential was shifted to a more positive direction. For higher Si added alloys, a higher amount of Mg2Si was formed as precipitates, which tend to form oxides such as SiO2 and MgO, further protecting the surfaces from corrosion. It can be observed from the micrographs that the scratches from polishing are removed after corrosion. Additionally, the SEM images reveal that corroded surfaces appear to have pits that are less noticeable in alloys with a greater Si content, suggesting thus the formation of a protective layer of oxides.

show abstract

Lightweight Material: Aluminium High Silicon Alloys in the Automotive Industry

Cited by 19 publications

References 14 publications

Lightweight Research in Engineering: A Review

Lightweight Research in Engineering: A Review

Solid State Processing of Aluminum Matrix Composites Reinforced with Nanoparticulate Materials

Electrochemical corrosion performance of Si-doped Al-based automotive alloy in 0.1 M NaCl solution

Contact Info

Product

Resources

About