Tribological behavior of squeeze cast aluminum matrix composites

Mindivan, Harun; Kayalı, E. Sabri; Çi̇menoǧlu, Hüseyin

doi:10.1016/j.wear.2007.12.007

Cited by 69 publications

(28 citation statements)

References 33 publications

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“…It illustrated that deformation in these locations was dominated by plastic deformation of solid grains (PDS). (2) 2 Cu phase were found in the microstructure of the rheoformed composite components due to natural ageing. MgAl 2 O 4 phase has no effect on mechanical properties due to good wetting and high properties.…”

Section: Discussionmentioning

confidence: 98%

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Microstructure, Mechanical Properties and Wear Behavior of the Rheoformed 2024 Aluminum Matrix Composite Component Reinforced by Al2O3 Nanoparticles

Jiang

Xiao

Che

et al. 2018

Metals

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Abstract:The 2024 nanocomposite reinforced with Al 2 O 3 nanoparticles was fabricated by the ultrasonic assisted semisolid stirring (UASS) method and rheoformed into a cylinder component. Microstructure, mechanical properties, and wear behavior of the rheoformed composite components were investigated. The results showed that the composite components with complete filling status and a good surface were rheoformed successfully. The deformation of semisolid slurries was mainly dominated by flow of liquid incorporating solid grains (FLS), sliding between solid grains (SSG), and plastic deformation of solid grains (PDS). Mechanical properties of the rheoformed composite components were influenced by stirring temperature, stirring time, and volume fraction of Al 2 O 3 nanoparticles. The optimal ultimate tensile strength (UTS) of 358 MPa and YS of 245 MPa were obtained at the bottom of the rheoformed composite components after a 25-min stirring of composite semisolid slurry with 5% Al 2 O 3 nanoparticles at 620 • C. Enhancement of mechanical properties was attributed to high density dislocations and dislocation tangles and uniform dispersed Al 2 O 3 nanoparticles in the aluminum matrix. Natural ageing led to the occurrence of needle-like Al 2 CuMg phase and short-rod-like Al 2 Cu phase. UTS of 417 MPa and YS of 328 MPa of the rheoformed composite components were achieved after T6 heat treatment. Improvement of mechanical properties is due to the more precipitated needle-like Al 2 CuMg phase and short-rod-like Al 2 Cu phase. Wear resistance of the rheoformed composite components was higher than that of the rheoformed matrix component. Wear resistance of the rheoformed composite component increased with an increase in Al 2 O 3 nanoparticles from 1% to 7%. A slight decrease in wear rate resulted from 10% Al 2 O 3 nanoparticles due to greater agglomeration of Al 2 O 3 nanoparticles. A combination mechanism of adhesion and delamination was determined according to worn surface morphology.

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Section: Discussionmentioning

confidence: 98%

“…Metal matrix composites (MMC) have exhibited some obvious advantages such as high specific strength, high specific stiffness, and good wear resistance [1][2][3]. Fabrication technology of MMC involves stirring casting [4,5], powder metallurgy [6][7][8], squeeze casting [9][10][11], and semisolid stirring [12][13][14].…”

Section: Introductionmentioning

confidence: 99%

Microstructure, Mechanical Properties and Wear Behavior of the Rheoformed 2024 Aluminum Matrix Composite Component Reinforced by Al2O3 Nanoparticles

Jiang

Xiao

Che

et al. 2018

Metals

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“…The chemical composition of the 2024 Al alloy matrix is shown in Table 1. Mindivan et al (2008) manufactured disc-shaped composites with 2618, 6082, 7012 and 7075 aluminium alloys as matrix and SiC as reinforcement. The process involved heating the aluminium alloy up to 800°C and SiC particles up to 1,000°C before mixing to the molten alloy.…”

Section: Fabrication Of Aluminium MMCmentioning

confidence: 99%

Fabrication and heat treatment of ceramic-reinforced aluminium matrix composites - a review

Das

Mishra

Singh

et al. 2014

Int J Mech Mater Eng

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Ceramic-reinforced aluminium matrix composites have attracted considerable attention in engineering applications as a result of their relatively low costs and characteristic isotropic properties. Reinforcement materials include carbides, nitrides and oxides. In an effort to achieve optimality in structure and properties of ceramic-reinforced metal matrix composites (MMCs), various fabrication and heat treatment techniques have evolved over the last 20 years. In this paper, the status of the research and development in fabrication and heat treatment techniques of ceramic-reinforced aluminium matrix composites is reviewed, with a major focus on material systems in terms of chemical compositions, weight or volume fraction, particle size of reinforcement, fabrication methods and heat treatment procedures. Various optical measurement techniques used by the researchers are highlighted. Also, limitations and needs of the technique in composite fabrication are presented in the literature. The full potential of various methods for fabricating ceramic-reinforced aluminium matrix composites is yet to be explored.

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“…Especially they are predicted as ideal reinforcement for manufacturing of aircrafts and sports goods, duetotheirhighaspectratio,strength,elasticmodulusand low density [3,4]. For instance,CNTs have shown to possess the highest elastic modulus (>1 TPa) in axial direction among all the materials found in the nature [5].There is much work done in investigating these properties of SWCNT.From the latest researches it is found that the Tensile strength of nanotubes can be up to 150 GPa, which is around 10-50 times higher than the steels of highest ultimate strength.Also there were many reports regarding how much effort has so far been rendered to the study of the various aspects of nanotubes such as buckling, mechanical, chemical,electrical and electrsonic, properties [6][7][8]. Researchers have concentrated their work on the utilization of such effective materialsfor macroscopic (and microscopic) applications.…”

Section: Introductionmentioning

confidence: 99%

Natural Frequency of CNT Reinforced Composites Using Finite Element Method

Renitha¹

2017

IJRASET

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Tribological behavior of squeeze cast aluminum matrix composites

Cited by 69 publications

References 33 publications

Microstructure, Mechanical Properties and Wear Behavior of the Rheoformed 2024 Aluminum Matrix Composite Component Reinforced by Al2O3 Nanoparticles

Microstructure, Mechanical Properties and Wear Behavior of the Rheoformed 2024 Aluminum Matrix Composite Component Reinforced by Al2O3 Nanoparticles

Fabrication and heat treatment of ceramic-reinforced aluminium matrix composites - a review

Natural Frequency of CNT Reinforced Composites Using Finite Element Method

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