The mechanical properties of Al2O3/aluminum alloy A356 composite manufactured by squeeze casting

Chou, Shang Nan; Huang, Jow-Lay; Lii, Ding-Fwu; Lu, Horng-Hwa

doi:10.1016/j.jallcom.2005.10.006

Cited by 50 publications

(26 citation statements)

References 15 publications

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“…4). Nevertheless, the strength decreases by increasing A356 content from 10 to 40 vol.%, but the relative densities approach 100%; the strength decreases because the materials were infiltrated with a soft material aluminum alloy [17]. The same phenomenon was found in the bending strength of the Al 2 O 3 /1050 composite.…”

Section: Hardnessmentioning

confidence: 62%

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The mechanical properties and microstructure of Al2O3/aluminum alloy composites fabricated by squeeze casting

Chou

Huang

Lii

et al. 2007

Journal of Alloys and Compounds

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Section: Hardnessmentioning

confidence: 62%

“…5 were basically similar. The hardness of all of the composites was approximate [17]. The imperceptible difference among them was the different hardness of aluminum alloys A356, 6061, and 1050.…”

Section: Hardnessmentioning

confidence: 96%

The mechanical properties and microstructure of Al2O3/aluminum alloy composites fabricated by squeeze casting

Chou

Huang

Lii

et al. 2007

Journal of Alloys and Compounds

Self Cite

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“…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]. In addition, selective laser melting (SLM) was employed to fabricate high-performance alloys and MMC [15][16][17].…”

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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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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“…Therefore, improvement of this alloys' mechanical properties has been extensively investigated. A356 alloys' strength is conventionally improved by the alloying technique [2][3][4][5][6][7] using master alloys, by heat treatment or by applying ultrasound, which affects the crystallization process of the solidifying alloy [8][9][10]. Some studies have shown that the addition of TiB2 particles causes grain refinement of the alloy [11,12].…”

Section: Introductionmentioning

confidence: 99%

Effect of Additions of Ceramic Nanoparticles and Gas-Dynamic Treatment on Al Casting Alloys

Borodianskiy

Selivorstov

Dotsenko

et al. 2015

Metals

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Abstract:In recent years, improving the mechanical properties of metals has become the main challenge in the modern materials and metallurgical industry. An alloying process is usually used to achieve advanced performance of metals. This paper, however, describes an alternative approach. Modification with ceramic nanoparticles, gas-dynamic treatment (GDT) and a combined treatment were investigated on a hypoeutectic Al-Si A356 alloy. Microstructural studies revealed the refinement of coarse α-Al grains and the formation of distributed eutectic Si particles. Subsequent testing of the mechanical properties revealed improvement after applying each of the treatments. The best results were obtained after modification with TiCN nanoparticles followed by GDT; the tensile strength and elongation of the A356 alloys increased by 18% and 19%, respectively.

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The mechanical properties of Al2O3/aluminum alloy A356 composite manufactured by squeeze casting

Cited by 50 publications

References 15 publications

The mechanical properties and microstructure of Al2O3/aluminum alloy composites fabricated by squeeze casting

The mechanical properties and microstructure of Al2O3/aluminum alloy composites fabricated by squeeze casting

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

Effect of Additions of Ceramic Nanoparticles and Gas-Dynamic Treatment on Al Casting Alloys

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