Mechanical Properties of 1.5wt.% TiB2-added Hypoeutectic Al-Mg- Si Alloys Processed by Equal Channel Angular Pressing

Syukron, Muhammad; Ojima, Masahiro; Seman, Anasyida Abu; Hussain, Zuhailawati; Koseki, Takafumi

doi:10.1016/j.proche.2016.03.122

Cited by 5 publications

(3 citation statements)

References 12 publications

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“…Results revealed that the modification effect to Mg, Sr, and T6 treatment caused the better distribution of Mg 2 Si and eutectic Si in Al matrix, which showed better mechanical properties comparable to Al-Si + TiB 2 composites. Syukron et al 7 , fabricated Al-Si + TiB 2 (1.5 wt.%) composite using the stir casting method. Annealing and equal channel angular pressing (ECAP) was performed on alloy and composite.…”

Section: Hardness Variation In Various Al-si Compositesmentioning

confidence: 99%

“…In comparison to other aluminium alloys, LM4 aluminium alloy has higher mechanical strength and greater wear resistance 6 . Mechanical characteristics of Al-Si alloys can be enhanced further by including ceramics particulates 7 . Ceramic particle reinforced aluminium matrix composites are gaining popularity owing to many enhanced characteristics that individual aluminium base alloys cannot provide 8 .…”

Section: Basic Introductionmentioning

confidence: 99%

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Artificial Neural Network for Predicting Hardness of Multistage Solutionized and Artificially Aged LM4 + TiB2 Composites

et al. 2022

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Aluminium casting alloy LM4 (EN 1706 AC-45200) composites with TiB 2 (1, 2, and 3 wt.%) as reinforcements were produced using the two-stage stir casting method. OM and SEM study shows uniform and homogeneous reinforcement distribution in LM4 + TiB 2 composites. As-cast composites were subjected to single-stage solution treatment at 520°C for 2 h and multistage solution treatment at 495 and 520°C for 2 and 4 h, followed by hot water quenching at 60°C and aging at 100 and 200°C for different time intervals. The hardness of as-cast and artificially aged composites were compared in both conditions. Compared to as-cast LM4 alloy, 20-45% improvement in hardness was observed for LM4 + TiB 2 as-cast composites. 60-150% improvement in hardness was observed in artificially aged LM4 + 3 wt.% TiB 2 composites when aged at 100 and 200°C during peak aged conditions. TEM images confirmed the presence of primary strengthening solute-rich phases after age hardening treatment such as θ'-Al 2 Cu and θ"-Al 3 Cu, which are responsible for hardness increment. An artificial neural network (ANN) model was created to predict the hardness trend of these composite samples using MATLAB R2021b, and results proved that the ANN model developed can be utilized as an effective tool to predict the hardness of treated composite samples.

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Section: Hardness Variation In Various Al-si Compositesmentioning

confidence: 99%

Section: Basic Introductionmentioning

confidence: 99%

Artificial Neural Network for Predicting Hardness of Multistage Solutionized and Artificially Aged LM4 + TiB2 Composites

et al. 2022

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“…Subsequently, in comparison with the above-mentioned processes, ECAP was utilized for the consolidation of samples. This method is one of the most facile and effective SPD methods for fabricating nanostructured-grain bulk materials [37,38,39,40]. Excellent features such as an ultrafine-grain (UFG) and nanocrystalline (NC) structure are produced by the SPD methods, which usually result in significant improvement of strength and toughness [41].…”

Section: Introductionmentioning

confidence: 99%

Investigating the Microstructure and Mechanical Properties of Aluminum-Matrix Reinforced-Graphene Nanosheet Composites Fabricated by Mechanical Milling and Equal-Channel Angular Pressing

et al. 2019

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Layered-graphene reinforced-metal matrix nanocomposites with excellent mechanical properties and low density are a new class of advanced materials for a broad range of applications. A facile three-step approach based on ultra-sonication for dispersion of graphene nanosheets (GNSs), ball milling for Al-powder mixing with different weight percentages of GNSs, and equal-channel angular pressing for powders’ consolidation at 200 °C was applied for nanocomposite fabrication. The Raman analysis revealed that the GNSs in the sample with 0.25 wt.% GNSs were exfoliated by the creation of some defects and disordering. X-ray diffraction and microstructural analysis confirmed that the interaction of the GNSs and the matrix was almost mechanical, interfacial bonding. The density test demonstrated that all samples except the 1 wt.% GNSs were fully densified due to the formation of microvoids, which were observed in the scanning electron microscope analysis. Investigation of the mechanical properties showed that by using Al powders with commercial purity, the 0.25 wt.% GNS sample possessed the maximum hardness, ultimate shear strength, and uniform normal displacement in comparison with the other samples. The highest mechanical properties were observed in the 0.25 wt.% GNSs composite, resulting from the embedding of exfoliated GNSs between Al powders, excellent mechanical bonding, and grain refinement. In contrast, agglomerated GNSs and the existence of microvoids caused deterioration of the mechanical properties in the 1 wt.% GNSs sample.

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Influence of Thermomechanical Processing on the Microstructure and Tensile Behavior of Solution-Treated Al-18%Si-4.5%Cu Alloy

Damavandi

Nourouzi

Jamaati

et al. 2021

J. of Materi Eng and Perform

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Mechanical Properties of 1.5wt.% TiB2-added Hypoeutectic Al-Mg- Si Alloys Processed by Equal Channel Angular Pressing

Cited by 5 publications

References 12 publications

Artificial Neural Network for Predicting Hardness of Multistage Solutionized and Artificially Aged LM4 + TiB2 Composites

Artificial Neural Network for Predicting Hardness of Multistage Solutionized and Artificially Aged LM4 + TiB2 Composites

Investigating the Microstructure and Mechanical Properties of Aluminum-Matrix Reinforced-Graphene Nanosheet Composites Fabricated by Mechanical Milling and Equal-Channel Angular Pressing

Influence of Thermomechanical Processing on the Microstructure and Tensile Behavior of Solution-Treated Al-18%Si-4.5%Cu Alloy

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