Effect of Solutionizing Time on Microstructure, Mechanical Properties and Energy Absorption Capacity of Al2024-B4CP Composite Foam

Singh, Rajvir; Arora, Rama; Sharma, Jagmohan

doi:10.1007/s12666-022-02563-z

Cited by 6 publications

(1 citation statement)

References 31 publications

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“…Direct and indirect foaming processes may fabricate it. Direct foam techniques start with molten metal containing equally scattered non-metallic particles, which produce a gas injected to create foam [8]. Methods of indirect foaming begin with a solid precursor from which a dispersed blowing agent is uniformly dispersed in an aluminum matrix [9].…”

Section: Introductionmentioning

confidence: 99%

Development and Characterization of Aluminium AA7075 Hybrid Composite Foams (AHCFs) Using SiC and TiB2 Reinforcement

Singh

Balaguru

2023

Inter Metalcast

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In this study AA7075/SiC/TiB2 closed-cell Aluminium hybrid composite foam (AHCFs) with different densities was fabricated by top-loaded bottom pouring stir casting technique. This technique uses oyster-shell powders (CaCO3 2.5 wt. % of composite with 60 μm size) as blowing agents and no viscosity-enhancing ingredient. The silicon carbide (SiC 0, 3, 6, 9, and 12 wt. % with 25 μm) and titanium di-boride (TiB2 3 wt. % with particle size 15 μm) are used as primary and secondary reinforcement agents. It has been noted that the addition of TiB2 and SiC enhanced the mechanical properties (modulus of elasticity, yield strength, and plateau strength) of AHCFs. The energy absorption capacity of AHCFs increases with the addition of SiC up to 3 wt. % and a further increase in SiC content leads to the reduction. It is observed that density and cell wall thickness increases with increasing the wt. % of SiC and Cell size and porosity decrease with an increase in wt. %. of reinforcement. It is also noted that Stirring temperature also strongly influenced the microstructural properties of AHCFs, and 750 0 C of stirring temperature is sufficient for aluminium foaming.

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Section: Introductionmentioning

confidence: 99%