Thermal fatigue behaviour and damage development in Al‐Alloys 6061 an 6061‐metal matrix composites

Heimann, Sebastian; Pohl, M.

doi:10.1002/mawe.201400134

Cited by 2 publications

(2 citation statements)

References 14 publications

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“…Despite that almost all metals and their alloys can be used as matrix materials, aluminium, as well as magnesium and its alloys, is most popular considered as a matrix. Al and Mg alloys are widely used mostly because of their low density and low melting point, especially their chemical and physical compatibility with reinforcement [10,11]. MMCs manufacturing methods can be separated into casting techniques (in the liquid state) and powder metallurgy (in solid state).…”

Section: Introductionmentioning

confidence: 99%

Mechanical Properties and Wear Resistance of PM Composite Materials Reinforced with the Halloysite Particles

Dobrzański

Tomiczek

Pakieła

et al. 2015

AMR

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The purpose of this work is the development of the aluminium alloy matrix composite materials using powder metallurgy technologies, including mechanical alloying and hot extrusion with the required properties and structure of the designed material. In this work halloysite nanotubes, was used as alternative reinforcement of metal matrix composites. Halloysite is a clayey mineral of volcanic origin, characterised by high porosity, high ion exchange, large specific surface and easy chemical, as well as mechanical treatment. High energy ball milling leads to uniform distribution of the halloysite reinforcing particles throughout the AlMg1SiCu matrix and simultaneously reduces the particle size. Proved microstructural changes influence the mechanical properties, especially microhardness, and compression yield, as well as wear resistant. The tribological analysis reveals that composite materials – irrespective of the measuring cycles number and load – are characterised by much smaller wear volume in comparison to the matrix material. The MMCs obtained as a result of mechanical alloying, cold compacting and hot extrusion are characterised with the microstructure of homogeneous distribution of halloysite particles in fine-grain matrix of AlMg1SiCu alloy, facilitate the obtainment of higher values of mechanical properties, compared to the base alloy. The composite materials reinforced with nanoparticles with 15% mass share are characterised by more than 180% higher yield strength and almost twice as higher microhardness compared to the matrix material. The analysis of the investigation results has confirmed that halloysite nanotubes can be applied as effective reinforcement in the MMCs.

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Section: Introductionmentioning

confidence: 99%

Mechanical Properties and Wear Resistance of PM Composite Materials Reinforced with the Halloysite Particles

Dobrzański

Tomiczek

Pakieła

et al. 2015

AMR

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“…This will help reduce several experimental works on composite materials development. Issues related to thermal reliability of composite materials can be found in literature (Heimann and Pohl 2014;Li et al 2014). Not much works are available in literature on thermal fatigue of composite materials used for thermal management in the electronic industries.…”

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confidence: 99%

Thermo-Mechanical Analysis of Aluminium Silicon Carbide Composite Materials

Ekpu¹

2020

jasem

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In recent years, composite materials have dominated the electronics industries and other manufacturing industries. Hence, composite materials like aluminium silicon carbide (AlSiC), has been employed to produce heat sinks, which are used mainly to manage heat in electronic devices. However, thermal fatigue of such composite material is a major challenge in maintaining reliability of the device. This paper investigates the thermomechanical effect of AlSiC composite materials. Finite element method (FEM) was used in the analyses of the composite materials based on the particulate inclusions between 10 – 50% compositions. The thermal profile (-40oC to 85oC) employed in this study is used commercially for consumer products. The fatigue life of the composite material which is based on the stresses and strains parameters were obtained and evaluated. The results from this investigation suggests that the deformations, strains, and stresses reduced with increase in the percentage of particulate inclusions. Also, the fatigue life of the composite material showed that the reliability of the material is increased with higher inclusions. This investigation demonstrated that 50% particulate inclusions has a better number of cycles to fatigue failure (5.09E+04) when compare to other inclusions. While 10% inclusions has the least fatigue life (4.39E+04) based on this investigation. Keywords: composite material; temperature profile; silicon carbide; thermal fatigue

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Thermal fatigue behaviour and damage development in Al‐Alloys 6061 an 6061‐metal matrix composites

Cited by 2 publications

References 14 publications

Mechanical Properties and Wear Resistance of PM Composite Materials Reinforced with the Halloysite Particles

Mechanical Properties and Wear Resistance of PM Composite Materials Reinforced with the Halloysite Particles

Thermo-Mechanical Analysis of Aluminium Silicon Carbide Composite Materials

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