Investigation on the Effect of Stirring Process Parameters on the Dispersion of SiC Particles Inside Melting Crucible

Mehta, Vishal; Sutaria, M. P.

doi:10.1007/s12540-020-00612-0

Cited by 23 publications

(12 citation statements)

References 26 publications

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“…The stirrer was coated with a graphite base non-stick coating to avoid sticking of the melt. The stirring was carried out at 400 rpm stirring speed, 40 mm stirrer position from the base of the crucible and 45°s tirrer blade angle, as suggested in the previous investigation carried out by authors (Mehta and Sutaria, 2020). The preheated SiC particles (800°C for 2 h) were added into the melt by particle feeding module during stirring.…”

Section: Experimental Methodsmentioning

confidence: 99%

Effect of temperature on wear and friction behavior of as-cast and heat-treated LM25/SiC aluminum matrix composites

Mehta

Sutaria

2020

WJE

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Purpose The purpose of this paper is to evaluate the influence of temperature, load and sliding speed on wear and friction behavior of LM25/SiC composites in as-cast and heat-treated conditions. Design/methodology/approach The LM25/SiC aluminum matrix composites (AMCs) were prepared using the stir casting process. The wear tests were carried out using a pin-on-disc setup in dry condition. The three levels of each parameter, i.e. 100, 150 and 200°C operating temperature; 15, 25 and 35 N load; 0.8, 1.6 and 2.4 m/sec sliding speed, were considered for the investigation. ANOVA has been carried out to evaluate the percentage contribution of parameters. Scanning electron microscope analysis of worn surfaces has been carried out to understand the wear mechanism. Findings The wear and coefficient of friction (COF) increase with the increase in the temperature, load and sliding speed within a selected range for as-cast as well as heat-treated LM25/SiC AMCs. The mean values of wear and COF in heat-treated samples were found to be lower than as-cast samples for all cases. It was observed that the percentage wear increases significantly as temperature increases in as-cast AMCS. Mild to severe wear transition was observed at 150°C. In heat-treated AMCs, mild wear was observed irrespective of temperature. It was also observed that as the temperature increases, transition of wear mechanism from abrasive to adhesive (including delamination) occurs earlier in as-cast samples as compared to heat-treated samples. Originality/value There is a lack of data on combined effect of temperature, load and sliding speed on tribological aspects of as-cast and heat-treated LM25/SiC AMCs, limiting its applications. The present research work has addressed this gap.

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Section: Experimental Methodsmentioning

confidence: 99%

Effect of temperature on wear and friction behavior of as-cast and heat-treated LM25/SiC aluminum matrix composites

Mehta

Sutaria

2020

WJE

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“…The uniform dissemination of the reinforcement materials in the parent metal is essential for the advance in the coveted properties such as stiffness, toughness, tensile strength, etc. The stirrer with inadequate rpm provides an ineffectual activating force on the central metal matrix, contributing to an inadequate association [5]. Cluster arrangement and agglomeration inclination were recorded at slow rpm of mixing.…”

Section: Stirring Speedmentioning

confidence: 99%

Selection and Fabrication of HMMC (AL6063-SIC-B4C-MG)

Matharou¹,

Kaur²

2023

Recent Developments in Nanofibers Research

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This unit deals with the selection and fabrication of HMMC (Al6063-10SiC-5B4C-Mg) constituents by extensive biography review and satisfactory fabrication design. Researchers have promoted an extensive collection of Al6063 composites employing organic and inorganic reinforcements. The fundamental purpose of the broken-up stages is to constrain the metal matrix in a relevant capacity to strengthen the properties of the base materials. In the case of Al6063, the reinforcement weighty subject matter in the composite varies from 5 wt.% to 30 wt.%. Diverse classes of reinforcements had sought to integrate and operate in the composite formulation as hybrid reinforcements. This chapter further discusses the comprehensive development stages of 84% wt of Al 6063, 10% wt of SiC, 5% wt of B4C with 1% wt of Mg hybrid metal matrix composite (HMMC) through the stir casting approach. During the stir casting process, the melting action of the material emanates numerous gases and residuals apart from the expected composite. The residuals have numerous environmental concerns, which require discussion since some of the vapors and substantial waste can lead to detrimental effects on the environment in terms of air and soil pollution.

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“…The premeasured and preheated graphite, TiB 2 , and nano MoS 2 reinforcing particles were mixed into the melt. The stirring speed, stirrer blade angle, and time of stirring are the chief parameters to influence the distribution homogeneity of the reinforcement particles [28]. The blade angle was set to 30°, and the stirring speed was followed at 600 rpm for 30 min to reach the maximum homogeneity.…”

Section: Fabrication Of the Hybrid Compositementioning

confidence: 99%

A comprehensive analysis to assess the impact of nano MoS₂ on the wear characteristic of Al-TiB₂-Gr composite

Chenrayan

Vaishnav

Shahapurkar

et al. 2022

Mater. Res. Express

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The present study evaluates the influence of nano MoS2 particles on the wear properties of newly developed TiB2 and Graphite reinforced Aluminium composite. Micro particles of MoS2 are downsized into nano levels using a planetary ball mill. Three different compositions of specimens are fabricated through stir casting, with a constant 10% of weight of TiB2, graphite, and nano MoS2 is kept at varying amounts of 10, 15, and 20%. The dry sliding wear tests are executed by following Taguchi's design of experiment. The wear rate and coefficient of friction are considered as responses, whereas the normal load, sliding distance and the composition of MoS2 are considered as the chief parameters with three levels. The hybridized Taguchi-Grey Relational -Principal Component Analysis mathematical model is implemented to study the effect of wear parameters and inclusion of MoS2 on the wear behavior. Mathematical and experimental results explore the increasing nano MoS2 content reduces the wear rate and coefficient of friction of composites. Analysis of variance results also acknowledge that nano MoS2 content in the composite is a remarkable parameter to impact the tribological property. The hybrid statistical model results explore that the optimum parameter to yield better tribological property are 30 N normal load, 2 km sliding distance and 20 % of MoS2. Worn surfaces are analyzed using scanning electron microscopy to picturize the wear mechanism concerning the varying content of reinforcement.

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Investigation on the Effect of Stirring Process Parameters on the Dispersion of SiC Particles Inside Melting Crucible

Cited by 23 publications

References 26 publications

Effect of temperature on wear and friction behavior of as-cast and heat-treated LM25/SiC aluminum matrix composites

Effect of temperature on wear and friction behavior of as-cast and heat-treated LM25/SiC aluminum matrix composites

Selection and Fabrication of HMMC (AL6063-SIC-B4C-MG)

A comprehensive analysis to assess the impact of nano MoS₂ on the wear characteristic of Al-TiB₂-Gr composite

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Investigation on the Effect of Stirring Process Parameters on the Dispersion of SiC Particles Inside Melting Crucible

Cited by 23 publications

References 26 publications

Effect of temperature on wear and friction behavior of as-cast and heat-treated LM25/SiC aluminum matrix composites

Effect of temperature on wear and friction behavior of as-cast and heat-treated LM25/SiC aluminum matrix composites

Selection and Fabrication of HMMC (AL6063-SIC-B4C-MG)

A comprehensive analysis to assess the impact of nano MoS2 on the wear characteristic of Al-TiB2-Gr composite

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A comprehensive analysis to assess the impact of nano MoS₂ on the wear characteristic of Al-TiB₂-Gr composite