Influence of hybrid ratio and friction stir processing parameters on ultimate tensile strength of 5083 aluminum matrix hybrid composites

Kurt, Halil Ibrahim

doi:10.1016/j.compositesb.2016.02.056

Cited by 62 publications

(17 citation statements)

References 32 publications

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“…Farklı deney sonuçlarına bağlı olarak farklı yoğunluk değerleri elde edilmiştir. Relatif yoğunluk değerleri, porozite içeriğini değiştirdiğinden kompozitlerin mekanik özelliklerini de etkilemektedirler (Kurt 2016 Şekil 8 ve 9'da giriş parametrelerinin relatif yoğunluk üzerine etkileri ve etkileşimi yarı ayrı verilmiştir. Alümina içeriğinde artışa bağlı olarak kompozitlerin relatif yoğunluk değerleri azalırken SiC içeriğindeki artışa bağlı olarak relatif yoğunluklar artmıştır.…”

Section: Taguchi Sonuçlarıunclassified

Comparison of Properties by Applying ANFIS, ANN and Taguchi Approaches to Al Matrix Composites

Ergül¹,

Kurt²

2021

Uluslararası Muhendislik Arastirma Ve Gelistirme Dergisi

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Öz Metal matris kompozitler havacılık, savunma sanayii, otomobiller ve diğer önemli yapısal uygulamalar gibi çeşitli alanlarda yaygın olarak kullanılmaktadır. Alüminyum ve alaşımları hafifliği yanı sıra sağlamlığı ve kolay şekillendirilebilme özellikleri sayesinde endüstride giderek artan kullanım alanına sahip olmuştur. Alüminyum matrisli kompozitlerde takviye elamanı olarak Al2O3, SiC, TiC, MgO, CNT ve B4C yaygın olarak kullanılır. Bu çalışmada, Al-bazlı metal matris kompozitlerin mekanik özelliklerini incelemek için matematiksel ve sonlu eleman modellemesi kullanılmıştır. Basınç, sinterleme sıcaklığı ve sinterleme süresine bağlı kalarak porozite içeriği uyarlanabilir nöro-bulanık çıkarım sistemi (ANFIS) yöntemi kullanılarak relatif yoğunluklar ise yapay sinir ağları (ANN) yöntemi ile başarılı bir şekilde analiz edilmiştir. ANFIS yaklaşımında, dört giriş parametresi, ağırlıkça %SiC oranı, kullanılan basınç (MPa), sinterleme sıcaklığı (⁰C), sinterleme zamanı (dk) ve bir çıkış parametresi porozite (%) oranı kullanılmıştır. Analizlerin korelasyon katsayılarının ve istatiksel hata oranlarının iyi olduğu görülmüştür. Toz metalürjisi yöntemiyle üretilen Al-Mg-Al2O3 kompozitlerin relatif yoğunluk değerleri ANN yöntemiyle incelenmiştir. Sistemin tahmin oranın %81 ve kabul edilebilir sınırlar içerisinde olduğu söylenebilir. Ayrıca, Taguchi yaklaşımı ile Al2O3 ve SiC içeren kompozitlerin relatif yoğunlukları analiz edilmiş ve sonuçlar karşılaştırılmıştır.

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Section: Taguchi Sonuçlarıunclassified

Comparison of Properties by Applying ANFIS, ANN and Taguchi Approaches to Al Matrix Composites

Ergül¹,

Kurt²

2021

Uluslararası Muhendislik Arastirma Ve Gelistirme Dergisi

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“…Additionally, several studies have reported that increasing the rotational speed and the number of passes leads to an ultimate increase in tensile strength. On the other hand, increasing the travelling speed leads to a decrease in the ultimate tensile strength [13][14][15][16][17]. However, an important consideration in surface composite fabrication, aside from the process parameters, is tool wear, which is an undesirable feature and obstacle for the quality of the workpiece.…”

Section: Introductionmentioning

confidence: 99%

Multi-Performance Characteristics of AA5052 + 10% SiC Surface Composite by Friction Stir Processing

2020

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In this paper, optimization of the fabrication parameters of an aluminum surface composite with respect to tensile strength and tool wear rate is reported. The surface layer was reinforced with SiC particles to improve the tribological properties of AA-5052. The Taguchi design with orthogonal array L8 was used for the experimental design, which included three processing parameters: the number of passes, rotational speed, and traversal speed. The experiment used optimal fabrication parameter searching to produce a multi-response prediction of both the tensile strength and tool wear rate. The experimental result was determined by grey relational analysis for multi-performance characteristics. Afterward, the prediction result of the optimal fabrication parameters was confirmed by repeated experiments to confirm the selection of optimal process parameters. The results revealed that the optimal fabrication parameters for multi-performance characteristics are two passes, rotational speed of 1000 revolutions per minute (RPM), and traversal speed of 30 mm/min (condition N2R1T2). These showed high tensile strength (229.90 MPa), low tool wear rate (0.0851), and a uniform distribution of SiC particles in the matrix. In addition, grey relational analysis showed that the parameter priority was 51.68% for rotational speed (the most significant process parameter), 36.18% for transversal speed, and 7.05% for the number of passes. Therefore, the grey-based orthogonal array Taguchi method can optimize multi-performance characteristics through the setting of process parameters for friction stir processing of an aluminum surface composite.

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“…In the following reports (Liu et al ., , , ) an attempt was made to predict the mechanical strength of processed nanocomposites by modelling the CNTs shortening and decomposition during process and estimating the related strengthening influences. In some recent research (Lu et al ., ; Hosseini et al ., ; Du et al ., ; Kurt, ), CNTs were considered an assistant reinforcing agent beside more commonly used oxide and carbide phases such as alumina (Al 2 O 3 ) and silicon carbide (SiC) to synthesize the Al‐matrix hybrid nanocomposites using multipass friction‐stir processing. However, the effects of CNTs incorporation and their decomposition on the operative dynamic restoration mechanisms during FSP process and possibly developed textural components in the processed nanocomposites are still unknown and not well addressed.…”

Section: Introductionmentioning

confidence: 99%

Influence of CNTs decomposition during reactive friction‐stir processing of an Al–Mg alloy on the correlation between microstructural characteristics and microtextural components

Khodabakhshi

Nosko

Gerlich

2018

Journal of Microscopy

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Multipass friction-stir processing was employed to uniformly disperse multiwalled carbon nanotubes (MW-CNTs) within an Al-Mg alloy metal matrix. Decomposition of MW-CNTs occurs in situ as a result of solid-state chemical reactions, forming fullerene (C60) and aluminium carbide (Al C ) phases during reactive high temperature severe plastic processing. The effects of this decomposition on the microstructural features, dynamic restoration mechanisms and crystallographic microtextural developments are studied for the first time by using electron backscatter diffraction (EBSD) and transmission electron microscopy (TEM) analysis. The formation of an equiaxed grain structure with an average size of ∼1.5 μm occurs within the stirred zone (SZ) under the influence of inclusions which hinder grain boundary migration via Zener-Smith pinning mechanisms during the discontinuous dynamic recrystallisation (DDRX). Formation of two strong Cubic and Brass microtextural components in the heat affected zone (HAZ) and thermomechanical affected zone (TMAZ) was noted as compared to the completely random and Cube components found in the base and SZ regions, respectively. The microstructural modification led to hardening and tensile strength improvement for the processed nanocomposite by ∼55% and 110%, respectively with respect to the annealed Al-Mg base alloy.

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Influence of hybrid ratio and friction stir processing parameters on ultimate tensile strength of 5083 aluminum matrix hybrid composites

Cited by 62 publications

References 32 publications

Comparison of Properties by Applying ANFIS, ANN and Taguchi Approaches to Al Matrix Composites

Comparison of Properties by Applying ANFIS, ANN and Taguchi Approaches to Al Matrix Composites

Multi-Performance Characteristics of AA5052 + 10% SiC Surface Composite by Friction Stir Processing

Influence of CNTs decomposition during reactive friction‐stir processing of an Al–Mg alloy on the correlation between microstructural characteristics and microtextural components

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