Yazar "Kilincarslan, Sena Kabave" seçeneğine göre listele

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    Effect of Impact Angle and Speed, and Weight Abrasive Concentration on AISI 1015 and 304 Steel Exposed to Erosive Wear
    (Springer, 2024) Gul, M. Salih; Demirsoz, Recep; Kilincarslan, Sena Kabave; Polat, Refik; Cetin, M. Huseyin
    This study investigated parametrically the erosive wear behavior of AISI 1015 and 304 steel in different environmental conditions. The erosive wear tests were designed according to the L9 orthogonal array design of the Taguchi fractional factorial method. The experiments were carried out with the parameters of 3-level slurry concentration formed with silica powder (5, 15, and 25 wt.%), 3-level impact velocity (265, 397.5, and 530 rpm), and 3-level impact angle (30 degrees, 60 degrees, and 90 degrees). Surface roughness and weight loss were considered performance criteria in the experimental data assessed using the signal/noise (S/N) and analysis of variance (ANOVA) methodologies. In addition, the wear zones of the samples were examined in detail with SEM, EDX, and 3D topography analyses. According to the S/N analysis, the best wear and surface roughness parameters for AISI 1015 and 304 steel were determined as 5% by weight concentration ratio, 265 rpm for impact speed, and 90 degrees for impact angle. It was determined that low concentration, low speed, and high impact angle values affected surface roughness and weight loss parameters positively. Experimental results showed that erosive wear resistance increased with the increasing alloying elements in steel materials.
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    Effects of cutting fluids with nano-silver and borax additives on milling performance of aluminium alloys
    (Elsevier Sci Ltd, 2020) Cetin, M. Huseyin; Kilincarslan, Sena Kabave
    The development of tribological properties of cutting fluids is important to ensure cutting efficiency in metal cutting processes. It is expected that the nano-cuffing fluids obtained using nanoparticles as a tribological agent will provide high tribological performance. In this study, the suspension of borax - ethylene glycol and colloidal suspension of borax - ethylene glycol - nano-silver particles were used as cutting fluid for milling of AA7075 - T6 material and their tribological properties were investigated. The originality of this paper is the improvement of the lubrication function and heat transfer properties of cutting fluids by using borax and nano-silver additives. In the experimental part of the current study, borax was used for lubrication, and nano-silver particles were employed to improve the heat transfer properties of nano-cuffing fluids. Both additives were synthesised using ethylene glycol which has high penetration ability. The prepared cutting fluids were applied to the cutting zone in pulverised form by minimum quantity of lubricant (MQL) technique due to the lower environmental and health impacts. In the experimental section, surface roughness values and cutting forces were measured and analysed according to the response surface method (RSM). Besides, chip morphologies were examined in microscale using SEM and EDX, and the effects of additives were discussed in detail. As a result, it was determined that the silver nano-particle additive reduced the surface roughness up to 13.88 %. However, any sufficient effect reducing the cutting forces was not observed.
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    Evaluation of the clean nano-cutting fluid by considering the tribological performance and cost parameters
    (Elsevier Sci Ltd, 2021) Kilincarslan, Enes; Kilincarslan, Sena Kabave; Cetin, M. Huseyin
    In this study, the tribological performance of cutting fluid developed with canola oil and nano-silver was investigated. Within the scope of the study, AA7075-T6 material was milled under the conditions of dry machining, boron oil, canola oil, and nano-silver added canola oil. As a result of the experiments, surface roughness, cutting forces, cutting temperature, chip morphologies, and tool wear were investigated. Nano-lubricant caused a slight increase in the machining forces, but it provided high performance in terms of sur-face roughness, cutting temperature, chip morphology and tool wear. As a result of the optimisation, the nano-silver added cutting fluid was determined to be optimum in terms of surface roughness and cutting temperature.
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    Improvement of the milling process performance by using cutting fluids prepared with nano-silver and boric acid
    (Elsevier Sci Ltd, 2020) Kilincarslan, Sena Kabave; Cetin, M. Huseyin
    Today, it is aimed to produce high quality products and reduce energy consumption in metal cutting processes. For this purpose, it is necessary to use cutting fluids with high tribological performance in metal cutting processes. With the use of these fluids, the lubrication and cooling functions required in metal removal processes will be provided effectively. In addition, minimal and effective use of fluids will reduce processing costs and energy consumption. In this study, tribological performances of cutting fluids consisted of nano-silver and boric acid were investigated comprehensively in the milling process of AA7075-T6 material. First, colloidal suspensions were prepared in ethylene glycol medium using nano-silver as a cooling and surface film-forming agent and boric acid as a lubricating agent. Secondly, milling experiments were performed according to semi factorial design method. Surface roughness (R-a) and cutting forces were considered as performance criteria. Visual and elemental analyses of chips were performed via scanning electron microscopy (SEM) and energy-dispersive X-ray (EDX) spectroscopy. Tool wear and build-up-edge (BUE) formation was examined by optical microscope. According to the results, the cutting fluid prepared with nano-silver (nAg) and boric acid (BA) in a medium of ethylene glycol (EG) decreased surface roughness by 14.59% more than the nAg and EG mixture and by 5.27% more than the BA and EG mixture. In addition, cutting forces of EG + BA + nAg was observed 0.846% and 0.115% lower than the EG + nAg and EG + BA, respectively. In terms of tool wear and chip morphology, EG + BA + nAg cutting fluid showed better results than other cutting fluids.
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    Investigation of interaction of extreme pressure additive, load and sliding speed parameters with silver nano-particles in wear environment
    (Iop Publishing Ltd, 2021) Ahmaida, Yousef Alamin A.; Korkmaz, Seyma; Kilincarslan, Sena Kabave; Sirvan, Onur Can; Cetin, M. Huseyin
    This study aims to minimize the wear of brass-based sliding bearing materials by using extreme-pressure and nano-silver added lubricants. The nano-fluids used in the experiments were characterized by the Zeta test, size measurement, absorbance graphs, wettability analyses and TEM imaging. The effect of extreme-pressure (5%, 10% and 15%) and nano-silver (1%, 5% and 9%) concentration ratios and the interaction of lubricants with load and speed parameters were analyzed with ball-on-plate wear experiments. The results were analyzed by evaluating the friction coefficient and wear volume values, as well as SEM and 3D topography images. It has been found that 5% extreme pressure lubricant reduces friction coefficient by 32.82% and volume loss by 89.51% compared to base lubricant. According to the results, the lowest friction coefficient (0.0276), volume loss (0.042 mm(3)) values and the best surface images were obtained at 1% concentration. Furthermore, the tribological performance decreased as the concentration of extreme-pressure and nano-silver increased, and optimum extreme-pressure and nano-silver concentrations were obtained as 5% and 1%, respectively. Using additives, different load (10N, 20N and 30N) and speed (10 rpm, 25 rpm, 40 rpm) parameters, Taguchi's L9 fractional factorial experimental design was created for interaction analyses. With the Taguchi analysis of the design, 5% extreme pressure added lubricant, 10N load and 40 rpm speed parameter combination was determined as the optimum test condition and base lubricant, 30N load and 25 rpm speed parameters were determined as the worst test condition. According to the variance analyses results, it was determined that the lubricant condition was the most effective parameter on the coefficient of friction (67.79%), volume loss (51.07%) and surface roughness (45.43%).
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    Investigation of the effect of surface modification types on the tribological performance of cow bone powder reinforced polymer materials
    (Wiley, 2023) Kilincarslan, Sena Kabave; Cetin, M. Huseyin; Kanbur, Yasin; Sismanoglu, Sedef; Polat, Refik
    This study investigated the production, characterization, mechanical and tribo-logical performance of surface-modified cow bone powder-reinforced composites. The primary goal was to increase the tribological and mechanical performance of sustainable and cleanly produced composite materials. It was determined that the surface-modified bone powder reinforcement increased the mechanical, thermal, and wear resistance of the polymer. The best surface modification method was determined as silanization. It reduced the friction coefficient and weight loss by 16.60% and 40.0%, respectively, according to the main factor analysis. In addition, it increased the glass transition temperature by 45.54%, crystallization by 2.93%, hardness by 2.70%, and tensile strength by 9.26% compared to the unmodified bone powder reinforcement.
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    Investigation of tribological performances of EP oil additive with gelatin and PVA coated nanoparticles
    (Gazi Univ, Fac Engineering Architecture, 2023) Abushrenta, Hamza Mohamed S.; Kilincarslan, Sena Kabave; Korkmaz, Seyma; Sirvan, Onur Can; Cetin, M. Hueseyin
    In this study, the effect of the lubricant prepared by adding EP and silver nanoparticles (AgNP) coated with different ligands to the ethylene glycol (EG) liquid on the tribological performance of the bearing material made of CuSn10Zn tin bronze was investigated. For the tribological analysis of EP additive, the optimum EP ratio was determined by carrying out wear tests in dry medium, pure EG and lubricant media prepared by adding volume of 5%, 10%, 15% EP to EG liquid. Optimum AgNP concentration and ligand material were determined by using volume of 2%, 5% and 8% AgNP coated with different ligands together with the determined optimum EP. In both stages, where optimum EP and AgNP concentrations were determined, the experiments were carried out with a reciprocating tribometer (ball on plate) with a load of 20 N and a speed of 40 rpm. Experiment results were analyzed by comparing friction coefficient, wear volume values with SEM and 3D topography images. According to the analysis results, it was determined that the friction coefficient and wear volume values obtained in EG + 5% EP environment were lower than 10% and 15% concentrations. According to the results obtained from the interaction of EG + 5% EP with AgNP, the optimum AgNP concentration was determined as 2%, and the optimum ligand material was determined as gelatin (Gel). In EG + 5% EP + 2% AgNP_Gel conditions, the friction coefficient was reduced by 18.70% and the volume loss by 16.94% compared to EG.