Synthesis and mechanical characterization of magnesium reinforced with SiC composites

Venkatesh, Bellam; Sandeep, Palle; Ramakrishna, M.

doi:10.1016/j.matpr.2019.08.133

Cited by 10 publications

(4 citation statements)

References 10 publications

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“…Furthermore, a comparison was made to understand the effect of carbide particles and metal particles on the hardness of Az91D alloy. For this purpose, the hardness value of Az91D/SiC composite was collected from literature (Venkatesh et al , 2019) and presented in Figure 3. As obviously seen from Figure 3, the Az91D/SiC composite showed the superior hardness value compared to all the composites investigated in this study.…”

Section: Resultsmentioning

confidence: 99%

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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Section: Resultsmentioning

confidence: 99%

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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“…This is attributed by the contribution of hybrid particles in the increase of Van der Waals forces between the molecules of WC, SiO 2 and AZ91D alloy(Xia et al, 2018). Similar type of investigation has been done byVenkatesh et al (2019) on AZ91D alloy with SiC particle reinforcement. He achieved the maximum hardness of 94 HV while adding 13 Vol.% SiC with AZ91D alloy.…”

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confidence: 79%

Tribological behavior of AZ91D magnesium alloy composite: effect of hybrid WC – SiO₂ nanoparticles

Fahad

Bavanish

2021

ILT

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Purpose Aviation field requires a material with greater tribological characteristics to withstand the critical climate conditions. Hence, it is of paramount importance to enhance the wear resistance of material. AZ91D magnesium alloy is a light weight material used in the aviation field for the construction work. The purpose of this study is to augment the wear properties of AZ91D alloy by reinforcing with hard particles such as tungsten carbide (WC) and silicon dioxide (SiO2). Design/methodology/approach In this work, three types of composites were fabricated, namely, AZ91D – WC, AZ91D – SiO2 and AZ91D – (WC + SiO2) by ball milling method, and the tribological properties were analyzed using pin-on-disc apparatus. Findings Results showed that the hardness of AZ91D alloy was greatly improved due to the reinforcing effects of WC and SiO2 particles. Wear study showed that wear rate of AZ91D alloy and its composites increased with the increase of applied load due to ploughing effect and decreased with the increase of sliding speed owing to the formation of lubricating tribolayer. Further, the AZ91D – (WC + SiO2) composite exhibited the lower wear rate of 0.0017 mm3/m and minimum coefficient of friction of 0.33 at a load of 10 N and a sliding speed of 150 mm/s due to the inclusion of hybrid WC and SiO2 particles. Hence, the proposed AZ91D – (WC + SiO2) composite could be a suitable candidate to be used in the aviation applications. Originality/value This work is original which deals with the effect of hybrid particles, i.e. WC and SiO2 on the wear performance of the AZ91D magnesium alloy composites. The literature review showed that none of the studies focused on the reinforcement of AZ91D alloy by the combination of carbide and metal oxide particles as used in this investigation.

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“…Table 7 shows AZ91D alloy reinforced with 12% volume of SiC with improved mechanical properties such as hardness of 94.24 VHN and UTS of 193.95 MPa. 74 Al-Si-Mg was matrix reinforced with SiC to form the composite with volumes of 2% and 15% SiC fabricated by the casting with stir process for improvement in the mechanical properties such as strength, hardness, and wear resistance. The SiC particles were evenly distributed in the matrix phase.…”

Section: Sicmentioning

confidence: 99%

Latest research and developments of ceramic reinforced magnesium matrix composites—A comprehensive review

Bharathi

Kumar

2022

Proceedings of the Institution of Mechanical Engineers, Part E:

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High-performance lightweight materials give rise to a demand for magnesium-based composites. Magnesium metal matrix composites have found extensive applications in the aerospace and automotive industries due to their remarkable mechanical properties. Limitations in dispersion, strength, and interface strength of magnesium-based composites are seen through the addition of some hybrid reinforcements and different fabrication techniques. In this regard, previous studies have demonstrated the ability of various reinforcements such as graphene, carbon nano tubes, silicon carbide, and titanium carbide to a magnesium matrix for the enhancement of its metallurgical properties. There are still several challenges in the development of magnesium metal matrix composites, such as non-homogeneous distribution, poor creep resistance at elevated temperatures, limited cold work ability, and low corrosion resistance. The challenges that need to be overcome and suggestion for improving the wear resistance and frictional properties of magnesium metal matrix composites were studied and discussed. This review evaluates the importance of different reinforcement percentages as well as the development of magnesium metal matrix composites. The different types of fabrication techniques that are well suited to overcome the challenges of poor dispersing, non-homogeneous distribution, interfacial problems, and poor wettability are discussed. Microstructure analysis, the agglomerating effect, and matrix bonding strength are also discussed. The challenges and future scope of research are discussed for the demonstration of the importance of more scientific studies in magnesium metal matrix composites.

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Synthesis and mechanical characterization of magnesium reinforced with SiC composites

Cited by 10 publications

References 10 publications

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

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

Tribological behavior of AZ91D magnesium alloy composite: effect of hybrid WC – SiO₂ nanoparticles

Latest research and developments of ceramic reinforced magnesium matrix composites—A comprehensive review

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Synthesis and mechanical characterization of magnesium reinforced with SiC composites

Cited by 10 publications

References 10 publications

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

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

Tribological behavior of AZ91D magnesium alloy composite: effect of hybrid WC – SiO2 nanoparticles

Latest research and developments of ceramic reinforced magnesium matrix composites—A comprehensive review

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Tribological behavior of AZ91D magnesium alloy composite: effect of hybrid WC – SiO₂ nanoparticles