Mechanical properties and wear behavior of Al–2wt.% Cu alloy composites reinforced by B4C nanoparticles and fabricated by mechanical milling and hot extrusion

Alizadeh, Ali; Taheri-Nassaj, E.

doi:10.1016/j.matchar.2012.02.006

Cited by 92 publications

(23 citation statements)

References 44 publications

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“…The short sintering time (60 s) applied in the HP-HT method inhibited the grain growth. The same phenomena were also observed in composites based on aluminum alloys [34,35]. Additionally, the compressive stresses occurring in this material in the first stage of compression contributed to the closure of pores in the sintered product, thus delaying the onset of cracks at the matrix/reinforcement interface [36].…”

Section: Mechanical and Physical Properties Of Steel-tib 2 Compositessupporting

confidence: 68%

Corrosion behaviors, mechanical properties and microstructure of the steel matrix composites fabricated by HP–HT method

Sulima

Kowalik

2015

Materials Science and Engineering: A

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Section: Mechanical and Physical Properties Of Steel-tib 2 Compositessupporting

confidence: 68%

Corrosion behaviors, mechanical properties and microstructure of the steel matrix composites fabricated by HP–HT method

Sulima

Kowalik

2015

Materials Science and Engineering: A

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“…However, a partial crystallite growth is observed for the consolidated samples during the hot pressing stage. Nevertheless, the extensive crystal growth is still retarded due to the pinning effects at the grain boundaries [22]. Explaining such trends for consolidated samples requires a better understanding of the elemental composition distribution, which will be discussed later.…”

Section: Resultsmentioning

confidence: 99%

Structural and Mechanical Evaluation of a Nanocrystalline Al–5 wt %Si Alloy Produced by Mechanical Alloying

Dayani

Shokuhfar

Vaezi

et al. 2017

Metals

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High energy mechanical milling followed by hot-pressing consolidation has been used to produce nanostructured Al-5 wt %Si alloy. X-ray diffraction (XRD), scanning electron microscopy equipped with energy dispersive X-ray detector (SEM-EDX), Vickers hardness, and compression measurements were used to examine the effect of milling duration on microstructure and mechanical properties of the nanostructured consolidated alloys. Crystallite sizes and lattice strains were determined by X-ray peak broadening analysis using the Williamson-Hall (W-H) method. Increasing the milling time reduced the crystallite size, and the minimum crystallite size of about 33 nm was achieved for both consolidated and powdered samples after 50 h of milling. Based on the SEM-EDX observations, the best distribution of silicon into Al matrix was obtained after 20 h of milling and remained unchanged afterwards. Hardness of both consolidated and powder samples increased with milling time, which can be attributed to the reduction of crystallite size and the better distribution of silicon in the aluminum matrix. Similarly, increased milling time increased the yield and compressive strengths of consolidated samples.

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“…1,30,31) A good combination of high strength and ductility in Al alloys and composites could be achieved when they are produced using appropriate conventional thermomechanical processing methods. For example, powder metallurgy followed by thermomechanical processes, such as extrusion and uniaxial or isostatic hot press, are commonly used for fabrication of metal matrix composites, because it shows significant potential for energy savings and enables one to control distribution of the second phase and microstructure characteristics.…”

Section: )mentioning

confidence: 99%

Evaluating Microstructure and High-Temperature Shear Behavior of Hot Extruded Al-Al<sub>13</sub>Fe<sub>4</sub> Nanocomposite

Nemati

Emamy

2016

Mater. Trans.

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The microstructure and mechanical properties of extruded aluminum matrix composites reinforced with novel Al 13 Fe 4 complex metallic alloy (CMA) nano-particles were investigated. The large grained structure of the hot pressed matrix was refined after addition of Al 13 Fe 4 CMAs, the effect being more pronounced for Al-5 mass% Al 13 Fe 4 composite. The hot pressed specimens were subjected to uniaxial hot extrusion process (with a 9 : 1 ratio at 400°C). This had a great effect on the microstructural evolution of the composites. High-temperature shear punch test (SPT) was employed to investigate the effects of 110 mass% Al 13 Fe 4 additions on the microstructure and mechanical properties of the asextruded Al/Al 13 Fe 4 composite. The shear behavior of the alloys was investigated in the temperature range of 25350°C. Al-5 mass% Al 13 Fe 4 nanocomposite had the highest shear strength among all the materials tested at high temperature (150, 250 and 350°C), mainly due to the semiideal dispersion of the thermally stable Al 13 Fe 4 nano-particles, and the refined microstructure of the extruded specimen, which results in pronounced enhancement in mechanical properties. These thermally resistant particles are believed to increase the resistance of the composite against the applied shear stress in the deformation zone during the subjection of the material to SPT.

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Mechanical properties and wear behavior of Al–2wt.% Cu alloy composites reinforced by B4C nanoparticles and fabricated by mechanical milling and hot extrusion

Cited by 92 publications

References 44 publications

Corrosion behaviors, mechanical properties and microstructure of the steel matrix composites fabricated by HP–HT method

Corrosion behaviors, mechanical properties and microstructure of the steel matrix composites fabricated by HP–HT method

Structural and Mechanical Evaluation of a Nanocrystalline Al–5 wt %Si Alloy Produced by Mechanical Alloying

Evaluating Microstructure and High-Temperature Shear Behavior of Hot Extruded Al-Al<sub>13</sub>Fe<sub>4</sub> Nanocomposite

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