Liquid state stir cast processing and characteristics study of AZ91D/SiCp composites

Chandradass, J.; Thirugnanasambandham, T.; Sethupathi, P Baskara

doi:10.1016/j.matpr.2020.11.450

Cited by 16 publications

(13 citation statements)

References 14 publications

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“…Based on ASTM A370 standard, 12 the tensile strength of developed AZ91D alloy composite samples was evaluated by Instron make tensiometer. ASTM E-384 standard, 14 the hardness of the composite sample was evaluated by three different indentations in each composite, and an average with 5% permissible error was considered the mean value.…”

Section: Characterization Studymentioning

confidence: 99%

“…However, the effective stir casting parameters adopted with SF6's inert nature lead to reduced oxidation during the magnesium melt, 12 a uniform stir speed of 400 rpm enhances the distribution of particle in the matrix, 10 and applied vacuum pressure removes the internal stress. 21…”

Section: Void Percentagesmentioning

confidence: 99%

“…Moreover, the choice of ceramic and fabrication process was the reason for the higher hardness. 12,13 The higher content of SiC resists the particle movement to the adjusting layer during high indentation. 15 However, the 6 and 9 wt% SiC composite showed better VHN results than all others.…”

Section: Vickers Hardness Number (Vhn)mentioning

confidence: 99%

“…11 The liquid solidification process was best for magnesium matrix composite preparation due to the simple process, easy to handle, and suited to complex shapes and economics rather than other techniques. [12][13][14] Moreover, the conventional stir casting found slag formation, agglomerated structure, nonuniformity particle distribution, and casting defects. 15,16 The approaches of semisolid stir solved these difficulties: cast, 17 two-stage stir cast, 18 ultrasonic vibration assisted stir cast, 19 and squeeze cast 20 process.…”

Section: Introductionmentioning

confidence: 99%

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SiC actions on characteristics analysis of AZ91D hybrid nanocomposite by liquid state processing

Yesuraj,

Ali,

Venkatesh

et al. 2023

Int J Applied Ceramic Tech

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With an inherent lowest density and distinct solubility with enhanced mechanical behavior reason, the magnesium alloy composite is extensively used in the auto and aero sectors. The processing of magnesium alloy found micro‐cracks and voids between the oxidation spot, which fails properties. Through the sulfur hexafluoride (SF6) atmosphere, the AZ91D alloy hybrid nanocomposites are synthesized with 10 wt% alumina (Al2O3) and 0, 3, 6, and 9 wt% of silicon carbide (SiC) nanoparticles via a liquid state process with 400 rpm stir speed followed by vacuum die casting. The effect of SiC actions on physical behavior, microstructural formation, and mechanical properties of AZ91D/10 wt%Al2O3, AZ91D/10 wt%Al2O3/3 wt% SiC, AZ91D/10 wt% Al2O3/6 wt% SiC, and AZ91D/10 wt% Al2O3/9 wt% SiC composites are studied and its results compared with cast AZ91D alloy. Due to the actions of SiC in AZ91D/10 wt%Al2O3, the composite density conforms to the rule of mixture, and the void and micro‐cracks are limited (less than 1%) by the impact of the casting process, as evidenced in the microstructural illustration. An effect of 10 wt% Al2O3 and 9 wt% SiC contents in AZ91D facilitates maximum tensile strength of 181 MPa, improved elongation percentage of 2.2%, optimum hardness of 85HV, and superior impact toughness of 21.8 J/mm2, which is higher than the all other compositions.

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Section: Characterization Studymentioning

confidence: 99%

Section: Void Percentagesmentioning

confidence: 99%

Section: Vickers Hardness Number (Vhn)mentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

SiC actions on characteristics analysis of AZ91D hybrid nanocomposite by liquid state processing

Yesuraj,

Ali,

Venkatesh

et al. 2023

Int J Applied Ceramic Tech

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“…Further, the inclusion WC decreased the wear and increased the wear resistance and strength of composite. Chandradass et al (2020) characterized the stir casted AZ91D/SiC composite and resulted that the tensile strength and hardness were improved by 45% and 34% when adding 2 Wt.% and 5 Wt.% SiC respectively with AZ91D. Further, authors reported that the AZ91D/5 Wt.% SiC composite showed the least wear rate of 0.89 mm 3 /Nm and higher coefficient of friction of 0.425.…”

Section: Introductionmentioning

confidence: 98%

Tribological and ageing behavior of Az91D magnesium alloy fortified with nano lanthanum and nanoceria by stir casting for aviation application

Fahad

Bavanish

2021

ILT

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Purpose The aviation field requires a material with the ability to withstand severe environmental conditions. The purpose of this paper is to provide higher wear resistance and improve the lifetime of aircraft. Hence, it is vital to enhance the wear resistance and strength of the material. Design/methodology/approach In this investigation, the Az91D magnesium alloy was reinforced with lanthanum (La2O3) and cerium oxide (CeO2) nanoparticles by stir casting and heat treatment process and the tribological and mechanical properties were analyzed. Findings The results showed the Az91D/CeO2 composite exhibited higher density (1.96 g/cm3) and lower porosity (1.01%) compared to other materials due to the diffusion of CeO2 nanoparticles in between the atoms of Az91D alloy. The hardness of Az91D/ CeO2 & Az91D/ La2O3 was improved by 38% and 34%, respectively, compared to Az91D alloy owing to the reinforcing effect of hard nanoparticles. Further, the inclusion of nanoparticles decreased the mass loss and showed lower wear rate compared to the Az91D alloy due to the pinning effect of nanoparticles. In addition, the friction coefficient was observed in the order of Az91D > Az91D/ La2O3 > Az91D/ CeO2. Moreover, the heat treatment displayed positive results on the properties of all the materials. Originality/value This work is original as the combination of cerium oxide nanoparticles with Az91D magnesium alloy is not tried by earlier investigators. Further, the comparative performance of both lanthanum and cerium oxide nanoparticles on the tribological and mechanical behavior of Az91D alloy has been analyzed for aviation application. This study will provide new information to the scientific world to increase the lifetime of aviation structures.

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Effect of graphene nanoparticle reinforcement on the mechanical properties of ZE41/graphene nanocomposites prepared by stir casting route

Thanikodi

2024

Int J Adv Manuf Technol

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Liquid state stir cast processing and characteristics study of AZ91D/SiCp composites

Cited by 16 publications

References 14 publications

SiC actions on characteristics analysis of AZ91D hybrid nanocomposite by liquid state processing

SiC actions on characteristics analysis of AZ91D hybrid nanocomposite by liquid state processing

Tribological and ageing behavior of Az91D magnesium alloy fortified with nano lanthanum and nanoceria by stir casting for aviation application

Effect of graphene nanoparticle reinforcement on the mechanical properties of ZE41/graphene nanocomposites prepared by stir casting route

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