Effect of scandium addition on the microstructure, mechanical and wear properties of the spray formed hypereutectic aluminum–silicon alloys

Raghukiran, Nadimpalli; Kumar, Ravi

doi:10.1016/j.msea.2015.06.027

Cited by 40 publications

(10 citation statements)

References 15 publications

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“…But if excessive clearance is allowed, then the piston will develop 'piston slap' while it is cold, and this affinity increases with wear. The less clearance between the piston and the cylinder wall will lead to seizing of Piston [24]. 2.…”

Section: Aluminum Silicon Alloymentioning

confidence: 99%

Topology Optimization of Integrated Combustion Engine Piston Using Fea Method (Cae Tools)

Sathishkumar¹,

Kanna²

2019

Acta mech. Malays.

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Topology optimization is a numerical approach that optimizes material arrangement within a given design space, for a given set of loads and periphery conditions such that the resulting layout meets a approved set of concert targets. Using topology optimization, engineers can find the best perception design that meets the design necessities. Topology optimization has been developed through the use of finite element methods of the analysis, and optimization techniques based on the method of moving asymptotes, genetic algorithms, optimality criteria method, level sets, and derivatives. Topology optimization is used at the idea level of the design process to appear at an intangible design plan that is then fine-tuned for concert and manufacturability. This thesis work correlated to the lay out optimization of internal combustion engine piston. Piston is one of the significant apparatus of engine. The multiple type of piston using through the automobile sectors. The various different type of piston is i) Equivalents lands thickness piston ii) Without crown piston (flat piston), iii) Without undercut piston, iv) With skirt land piston v) Dissimilar land thickness the analyzed this research work the Computer Aided Designing model initially created by CATIA, then Finite Element Analysis done by ANSYS.

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Section: Aluminum Silicon Alloymentioning

confidence: 99%

Topology Optimization of Integrated Combustion Engine Piston Using Fea Method (Cae Tools)

Sathishkumar¹,

Kanna²

2019

Acta mech. Malays.

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“…As we all know a spherical microstructure provides with a better hardness or tensile property. Even rare earth metals like Scandium is being tried to alloy with Al-Si alloys [8]. Neodymium was proved to be useful in improving the characteristics of the alloy at high temperatures [9].…”

Section: Introductionmentioning

confidence: 99%

Study of Mechanical and Wear Properties of Stir-Cast Al-Si-Cu alloy

Namboodiri¹,

Ilangovan²

2018

IJET

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The present work deal with an investigation of the mechanical and wear properties of eutectic Al-12.8%Si-2.5%Cu under as cast and homogenized conditions. The alloy was melted in a ceramic crucible, stirred and gravity poured into a metal mold and was then cooled under atmosphere. The stirring parameters include a stirrer speed of 400rpm at a melt temperature of 750 0 C for about 10 minutes. The cast specimens were homogenized in a nitrogen atmosphere crucible at a temperature of 350 0 C for 8 hours and furnace cooled to room temperature. The microstructure of as cast and homogenized specimen were studied under SEM. The results of SEM study showed that the Si particles were more evenly dispersed around the -Al matrix after homogenization. This even dispersion of Si particles led to an increase in the hardness and ultimate tensile strength of the alloy. The dry sliding wear behavior was studied using a pin-on-disc machine. It is seen that the wear rate reduced with increase in sliding speed. The EDAX analysis of worn surface showed the phenomenon of lamination. It is concluded that the oxide layer formation was also a reason for increase in wear resistance of the material.

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“…Therefore, this is used in field of nanotechnology science to improve material operation and machines in the nanometer scale by various techniques; in addition, it is used in solar cell, solid-state gas sensor, nanowire, electronic nanodevices, UV lasing diode, nanoresonators, and piezoelectric transducers [9][10][11][12]. Raghukiran et al [13] studied the effect of the scandium addition on the mechanical and wear behavior of Al-x%Si-0.8Sc alloys. The results show the Al-x%Si-0.8Sc alloys give higher tensile strength and flow stress, and an improvement in the wear behavior at low concentration ratio of silicon for ternary alloys.…”

Section: Introductionmentioning

confidence: 99%

Enhancement of microstructure and mechanical properties of hypereutectic Al–16%Si alloy by ZnO nanocrystallites

et al. 2018

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This study was carried out to examine the mechanical properties of hypereutectic Al-16% Si alloy with the introduction of zinc oxide (ZnO) nanoparticles (NPs) synthesized by simple sol-gel method. The microstructure of the synthesized ZnO NPs was characterized by X-ray diffraction (XRD) and transmission electron microscopy (TEM). The microstructure of the synthesized ZnO NPs reflects the formation of the wurtzite-type ZnO and the average crystallite sizes around 35 nm. Hypereutectic Al-16% Si with varies concentration of ZnO NPs (0.5, 1, 1.5 and 3%) was synthesized utilizing permanent mold casting technique. Energy-dispersive spectrometer (EDS) and scanning electron microscopy (SEM) of hypereutectic Al-16 wt% Si alloys after the dispersion of these nanoparticles were analyzed. The results revealed that an addition of ZnO nanoparticle to hypereutectic Al-16wt % Si alloy enhanced the tensile strength, impact energy and the hardness. The maximum tensile strength, impact energy and hardness of this alloy was 200 MPa, 5.38 J, 60 BHN, respectively, which occurred at 3 wt% of ZnO NPs. This enhancement in mechanical properties can attributed to the decomposition and dissolution of the nano-oxide particles in aluminum alloy melt and grain growth restriction.

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Effect of scandium addition on the microstructure, mechanical and wear properties of the spray formed hypereutectic aluminum–silicon alloys

Cited by 40 publications

References 15 publications

Topology Optimization of Integrated Combustion Engine Piston Using Fea Method (Cae Tools)

Topology Optimization of Integrated Combustion Engine Piston Using Fea Method (Cae Tools)

Study of Mechanical and Wear Properties of Stir-Cast Al-Si-Cu alloy

Enhancement of microstructure and mechanical properties of hypereutectic Al–16%Si alloy by ZnO nanocrystallites

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