Microstructure and mechanical characterization of in situ synthesized AA6061/(TiB2+Al2O3) hybrid aluminum matrix composites

Selvam, J. David Raja; Dinaharan, I.; Philip, S. Vibin; Mashinini, Peter Madindwa

doi:10.1016/j.jallcom.2018.01.016

Cited by 110 publications

(26 citation statements)

References 37 publications

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“…Therefore, the microhardness and UTS improves in the welds prepared with TiCp/Al-5Mg composite fillers. Furthermore, thermal strains tend to form around TiC particles because of the difference in thermal expansion coefficients of TiC particles and the aluminum matrix, which also increases the microhardness value and UTS of the weld [25,26].…”

Section: Resultsmentioning

confidence: 99%

Microstructure, Corrosion and Mechanical Properties of TiC Particles/Al-5Mg Composite Fillers for Tungsten Arc Welding of 5083 Aluminum Alloy

Huang

Wang

et al. 2019

Materials

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A semi-solid stir casting mixed multi-pass rolling process was successfully employed to manufacture TiCp/Al-5Mg composite filler wires with different contents of TiC particles. The 5083-H116 aluminum alloys were joined by tungsten inert gas (TIG) using TiCp/Al-5Mg composite weld wires. The microstructure, mechanical properties, fractography and corrosion behavior of the welds were evaluated. The results revealed that TiC particles were distributed in the welds uniformly and effectively refined the primary α-Al grains. The hardness and tensile strength of the welds were improved by increasing the TiC particle content, which could be attributed to the homogeneous distribution of TiC particles and the microstructure in the weld joints. Potentiodynamic polarization testing revealed that the corrosion resistance of the welds also increased with the addition of TiC particle contents. In addition, the stress corrosion cracking (SCC) susceptibility of the welds decreased as micro-TiC particles were introduced into the welds. The electronic structure of the Al/TiC interface was investigated by first principle calculation. The calculation showed that valence electrons tended to be localized in the region of the TiC-Al interface, corresponding to an addition of the overall work function, which hinders the participation of electrons in the composite in corrosion reactions.

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Section: Resultsmentioning

confidence: 99%

Microstructure, Corrosion and Mechanical Properties of TiC Particles/Al-5Mg Composite Fillers for Tungsten Arc Welding of 5083 Aluminum Alloy

Huang

Wang

et al. 2019

Materials

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“…The tensile test is used to determine yield point, ultimate strength and elongation of material. The tensile test was done using Instron made universal testing machine as per ASTM E8 standard [6]. Similarly, the compression test was done according to ASTM E9-09 standard.…”

Section: Testingmentioning

confidence: 99%

Processing and Mechanical Characterization of ADC12 alloy B4C RHA Hybrid Composites

Mohan,

Kempaiah,

Seenappa

et al. 2019

IJEAT

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The effects of dual particulates addition on the mechanical behaviour of ADC12 alloy composites were studied. Boron carbide (B4C) and rice husk ash (RHA) particulates were used as the reinforcements in the ADC12 alloy base matrix. Hybrid composites were prepared by using liquid melt method, keeping 5 wt. % of B4C reinforcement constant and varying rice husk ash particles in steps of 3 and 6 wt. % in the ADC12 alloy. Samples were tested for microstructural characterization by using SEM and EDS. Mechanical behaviour like hardness, ultimate tensile strength; yield strength, percentage elongation and compression strength were evaluated as per ASTM standards. SEM photographs revealed the uniform distribution of B4C and RHA particulates in the ADC12 alloy and these particles were confirmed by EDS analysis. Further, hardness, tensile and compression properties of base matrix ADC12 alloy was enhanced with the addition of B4C and RHA particulates. Ductility of ADC12 alloy decreased after the incorporation of B4C and RHA particles.

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“…In-situ nano-particle reinforced aluminum alloy matrix composites are applied widely in the automotive and aerospace industries, due to their low density, high specific strength and stiffness and good thermal stability [1][2][3][4]. Notably, a remarkable shortcoming, that is, the agglomeration of particle reinforcements which is characterized by the clustered regions distributing around the grain or phase boundaries, has constrained the optimal coupling of strength and plasticity of Al alloy matrix composites.…”

Section: Introductionmentioning

confidence: 99%

Effects of particulate agglomerated degree on deformation behaviors and mechanical properties of in-situ ZrB₂ nanoparticles reinforced AA6016 matrix composites by finite element modeling

Yangshan

Zhao

et al. 2020

Mater. Res. Express

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In this paper, both the tensile deformation behaviors and mechanical properties of in situ ZrB 2 nanoparticles reinforced AA6016 matrix composites are investigated with finite element analysis. For the modeling, the volume fraction of nano ZrB 2 particles is defined by combining cluster sizes with particulate agglomerated degree which was observed in the agglomeration clustered regions by experiments. The effects of clusters on the mechanical behaviors of composites are disclosed according to qualify mechanical behaviors of local particulate agglomeration. The results indicate that finite element analysis is performed to predict the Young's modulus of composites, which is in good agreement with the experimental results. In addition, the speed of stress concentration is faster when the agglomerated degree elevates, which minimizes elongation of composites under the same particle volume fraction. Likewise, under the same agglomerated degree, the higher particle volume fraction of composites triggers the reduction of elongation.

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Microstructure and mechanical characterization of in situ synthesized AA6061/(TiB2+Al2O3) hybrid aluminum matrix composites

Cited by 110 publications

References 37 publications

Microstructure, Corrosion and Mechanical Properties of TiC Particles/Al-5Mg Composite Fillers for Tungsten Arc Welding of 5083 Aluminum Alloy

Microstructure, Corrosion and Mechanical Properties of TiC Particles/Al-5Mg Composite Fillers for Tungsten Arc Welding of 5083 Aluminum Alloy

Processing and Mechanical Characterization of ADC12 alloy B4C RHA Hybrid Composites

Effects of particulate agglomerated degree on deformation behaviors and mechanical properties of in-situ ZrB₂ nanoparticles reinforced AA6016 matrix composites by finite element modeling

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Microstructure and mechanical characterization of in situ synthesized AA6061/(TiB2+Al2O3) hybrid aluminum matrix composites

Cited by 110 publications

References 37 publications

Microstructure, Corrosion and Mechanical Properties of TiC Particles/Al-5Mg Composite Fillers for Tungsten Arc Welding of 5083 Aluminum Alloy

Microstructure, Corrosion and Mechanical Properties of TiC Particles/Al-5Mg Composite Fillers for Tungsten Arc Welding of 5083 Aluminum Alloy

Processing and Mechanical Characterization of ADC12 alloy B4C RHA Hybrid Composites

Effects of particulate agglomerated degree on deformation behaviors and mechanical properties of in-situ ZrB2 nanoparticles reinforced AA6016 matrix composites by finite element modeling

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Product

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Effects of particulate agglomerated degree on deformation behaviors and mechanical properties of in-situ ZrB₂ nanoparticles reinforced AA6016 matrix composites by finite element modeling