The enhancement of wear properties of squeeze-cast A356 composites reinforced with B4C particulates
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Ali Mazahery
Abstract
In the present study, squeeze-cast A356 matrix composites reinforced with B4C particles were prepared and different volume fractions of B4C particles of various sizes were incorporated into the aluminum alloy by a mechanical stirrer.
Wear properties of the unreinforced alloy and composites with different vol.% of boron carbide particles were measured and compared. It is noted that composites exhibit better wear resistance compared to the unreinforced alloy. According to the differences in wear rates of the composites, two separate wear-rate regimes were identified as low- and high-wear-rate regimes.
It is observed that all the composite samples reinforced with 1 μm B4C particles show high wear-rate, regardless of the particle volume fraction. However, none of the samples containing 50 μm particles display this type of wear regime. Microscopic examination using a scanning electron microscope equipped with an energy-dispersive spectrometer, was carried out on the worn surfaces, subsurfaces, and debris. Rough and smooth regions are distinguished on the worn surface of the composites similar to the unreinforced alloy.
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© 2012, Carl Hanser Verlag, München
Artikel in diesem Heft
- Contents
- Contents
- Original Contributions
- Diffusivities and atomic mobilities in Cu-rich fcc Al–Cu–Mn alloys
- Phase transformations in non-isothermally annealed as-cast and cold-rolled AlMnScZr alloys
- High-temperature deformation behavior and thermal properties of an Ni30Co17Fe53 alloy
- Microstructural and mechanical properties of dual-phase steels welded using GMAW with solid and flux-cored welding wires
- Microstructure – wear performance relationship of hypoeutectic 15% Cr-2% Mo white iron
- The enhancement of wear properties of squeeze-cast A356 composites reinforced with B4C particulates
- Phase diagram of the Al–Dy–Zr ternary system at 773 K
- Calorimetric investigations of liquid gold–antimony–tin alloys
- Combustion synthesis and characterization of bulk nanostructured Ni50Al17Fe33 alloy
- Effect of sand blasting on structural, thermal, and mechanical properties of Zr58.3Cu18.8Al14.6Ni8.3 bulk metallic glass
- Studies of dynamic mass transfer at the slag–metal interface – Interfacial velocity measurements
- Structural and optical investigation of gadolinia-doped ceria powders prepared by polymer complex solution method
- Adsorption of bovine serum albumin onto titanium dioxide nanotube arrays
- CNT-based displacement sensor
- Non-covalent assembly of hybrid nanostructures of gold and palladium nanoparticles with carbon nanotubes
- Effect of solid content on performance of conductive silver paste for crystalline silicon solar cells
- Effect of inhomogeneous size and shape of graphite particles on the in-plane electrical conductivity of PP/G/CB composites
- The durability of fired brick incorporating textile factory waste ash and basaltic pumice
- DGM News
- DGM News
Artikel in diesem Heft
- Contents
- Contents
- Original Contributions
- Diffusivities and atomic mobilities in Cu-rich fcc Al–Cu–Mn alloys
- Phase transformations in non-isothermally annealed as-cast and cold-rolled AlMnScZr alloys
- High-temperature deformation behavior and thermal properties of an Ni30Co17Fe53 alloy
- Microstructural and mechanical properties of dual-phase steels welded using GMAW with solid and flux-cored welding wires
- Microstructure – wear performance relationship of hypoeutectic 15% Cr-2% Mo white iron
- The enhancement of wear properties of squeeze-cast A356 composites reinforced with B4C particulates
- Phase diagram of the Al–Dy–Zr ternary system at 773 K
- Calorimetric investigations of liquid gold–antimony–tin alloys
- Combustion synthesis and characterization of bulk nanostructured Ni50Al17Fe33 alloy
- Effect of sand blasting on structural, thermal, and mechanical properties of Zr58.3Cu18.8Al14.6Ni8.3 bulk metallic glass
- Studies of dynamic mass transfer at the slag–metal interface – Interfacial velocity measurements
- Structural and optical investigation of gadolinia-doped ceria powders prepared by polymer complex solution method
- Adsorption of bovine serum albumin onto titanium dioxide nanotube arrays
- CNT-based displacement sensor
- Non-covalent assembly of hybrid nanostructures of gold and palladium nanoparticles with carbon nanotubes
- Effect of solid content on performance of conductive silver paste for crystalline silicon solar cells
- Effect of inhomogeneous size and shape of graphite particles on the in-plane electrical conductivity of PP/G/CB composites
- The durability of fired brick incorporating textile factory waste ash and basaltic pumice
- DGM News
- DGM News