Self-Hardening Alloys for Automotive Application

Peter, Ildiko; Rosso, Mario; Castella, Christian; Molina, R.

doi:10.4028/www.scientific.net/msf.794-796.1221

Cited by 9 publications

(5 citation statements)

References 8 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…As an experimental material was used secondary self-hardening AlZn10Si8Mg cast alloy which is characterized by very good casting properties, good wear resistance, low thermal expansion and very good machining, polishability, and weldability (Rosso et al, 2013;2014;Peter et al, 2014;Tillová et al, 2017). The experimental material, with chemical composition (in wt.…”

Section: Experimental Materialsmentioning

confidence: 99%

“…Last few decades is a high tendency to minimize the energy consumption in order to have a minor impact on the environment and therefore is a great effort to use instead of secondary aluminum alloys, self-hardening aluminum alloys for industrial applications (Rosso et al, 2014;Castella, 2015;Tillová et al, 2015;Hirsch, 2009;2011;2014). Selfhardening aluminum alloys have high mechanical properties without needs of heat treatment, because these materials are subjected to a natural ageing phenomenon at room temperature after casting for a storage period of about 7-10 days (Rosso et al, 2013;2014;Peter et al, 2014;Tillová et al, 2017) and achieve the desired properties for application in different industrial fields. However, sometimes a request for reduce wear, better mechanical, fatigue properties and corrosion resistance of self-hardening aluminum is, that alloys are exposed to surface treatment (Tillová et al, 2017;Montealegre et al, 2010;Pliszka et al, 2016;Radek, 2008;Bergant et al, 2016;Spadaro et al, 2007).…”

Section: Introductionmentioning

confidence: 99%

“…The present study is focused on self-hardening Al-Zn-Si aluminum alloy which can be used for casting new products for mechanical engineering, hydraulic castings, textile machinery parts, car components, and so on (Peter et al, 2014;Tillová et al, 2017). Therefore is necessary to study possibilities of increasing properties of these alloys and one way is laser surface hardening.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Influencing the Mechanical Properties of Engine and Vehicle Constructions Alloy with Laser Surface Heating

Kuchariková¹,

Tillová²,

Belán³

et al. 2018

Period. Polytech. Transp. Eng.

View full text Add to dashboard Cite

The self-hardening aluminum alloys are interesting for producers of casting, because these materials have the required properties without using heat treatment. This casts production result in the following advantages: energy saving, reduction of the costs, no permanent deformation, largest casting dimensions possible, and so on. Nevertheless, it is well known that improvement of mechanical properties and structure of aluminum alloys can often significantly increase the lifetime of casting and reduce costs for fuel and reduction of environmental loading. The basic and energy saving method for improvement of mechanical properties of self-hardened alloys is surface hardening. Surface hardening improves properties such as: corrosion resistance, wear resistance and hardness. In regards this facts great interest in reducing the cost of components makes a great opportunity for use laser surface processing. Therefore this article deals with using laser surface heating and evaluations its influence onto mechanical properties of self-hardening ENAC-71100, i.e. AlZn10Si8Mg cast alloy. This alloy is especially used for engine and vehicle constructions, hydraulic unit and mound so the surface properties are important for application in industries. The results show that laser surface heating have influence on properties, but well defined conditions of heating are very important.

show abstract

Section: Experimental Materialsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Influencing the Mechanical Properties of Engine and Vehicle Constructions Alloy with Laser Surface Heating

Kuchariková¹,

Tillová²,

Belán³

et al. 2018

Period. Polytech. Transp. Eng.

View full text Add to dashboard Cite

show abstract

“…The goal of this study was to find an alternative solution to the T6 heat-treated A356/A357 alloys currently used for automotive component production. The feasibility of the development of a knuckle suspension component, starting from the modified self-hardening alloy with an increased Mg content, was studied and investigated [89]. Comparison of the alloy properties, also considering the solidification rate, was carried out with the aim to find an optimal composition and condition for good mechanical performance and good corrosion resistance achievements.…”

Section: Study Of the Development Of An Alternative Solution To The Hmentioning

confidence: 99%

Light Alloys — From Traditional to Innovative Technologies

Peter¹,

Rosso²

2015

New Trends in Alloy Development, Characterization and Application

Self Cite

View full text Add to dashboard Cite

Selection of materials with the expected, application-dependent characteristics constitutes a very important point in any industrial application. In the automotive and aeronautical industries, the current tendency is to use light metals and their alloys for production of various components. For example, some of the problems related to fuel consumption and weight reduction could be partially solved by using such alloys as an alternative to traditional iron-based alloy components. Due to their very attractive properties, the most commonly employed light materials for producing high-stressed components are aluminium, magnesium and their alloys. Al-based alloys have a high strength/weight ratio, good formability, excellent combination of castability and mechanical properties which together with an excellent corrosion resistance make them very appropriate for a large variety of applications. There are two important families of aluminium alloys: (i) wrought alloys, firstly cast as ingots and/or billets and then mechanically hot-and/or cold-worked into the preferred shape, and (ii) cast alloys, directly cast into their final form through different traditional or innovative processes. At the same time, there is continuing interest in Mg alloys for engineering proposals because of their lowest density directly connected to a weight saving of about 40% compared to steel and cast iron and 20% compared to aluminium for the same component performance. Their high specific strength, good castability and machinability, high thermal conductivity, high dimensional stability, good electromagnetic shielding property, high damping characteristics and full recyclability place them in a particular position for production of different types of components. High-pressure die casting is the most widely used technique and represents about 50% of all light alloy casting production. The tendency to use low-pressure die casting is increasing

show abstract

“…The maximum defect size has been recognized as the most important parameter in determining the fatigue properties of aluminium castings. In the presence of casting defects, crack initiation can be ignored and fatigue life is mainly spent in crack propagation [1][2][3]. Methods to accurately predict fatigue properties of these castings early in the component and manufacturing process design cycle are needed [4].…”

Section: Introductionmentioning

confidence: 99%

Fatigue Resistance of Self-hardening Aluminium Cast Alloy

Závodská¹,

Tillová²,

Guagliano³

et al. 2017

Materials Today: Proceedings

View full text Add to dashboard Cite

Cast aluminium alloys are widely used in fatigue critical structural applications, such as engine blocks, cylinder heads, chassis and suspension components, to improve automotive fuel economy. However, it may be difficult to use these alloys for parts that require a high fatigue strength and high reliability because of a large number of casting defects as porosity and microshrinkages exist in them. Fatigue properties of cast aluminium components are controlled by maximum defect size in the material. The larger maximum defect size, the lower the fatigue strength and life. Self-hardening Al-alloys (Al-Zn-Si-Mg alloys) introduce an innovative class of light Al-alloys. Fatigue properties of AlZn10Si8Mg cast alloy in the high cycle region were tested by rotating bending fatigue loading in a high cycle region with the used of parameters -frequency f = 40 Hz, temperature T = 20 ± 5 ℃ and stress ratio R = -1. Because of that large pores are near or at specimen´s surface and its dominant reason of fatigue crack initiation and propagation.

show abstract

Self-Hardening Alloys for Automotive Application

Cited by 9 publications

References 8 publications

Influencing the Mechanical Properties of Engine and Vehicle Constructions Alloy with Laser Surface Heating

Influencing the Mechanical Properties of Engine and Vehicle Constructions Alloy with Laser Surface Heating

Light Alloys — From Traditional to Innovative Technologies

Fatigue Resistance of Self-hardening Aluminium Cast Alloy

Contact Info

Product

Resources

About