Investigation of Hardness and Wear Behavior of Al6061 Matrix SiC Al2O3 and Coal Slag Powder Reinforced Hybrid Composites

Rahmi Kocaman; Serkan Ateş

Makale detayları

Investigation of Hardness and Wear Behavior of Al6061 Matrix SiC Al2O3 and Coal Slag Powder Reinforced Hybrid Composites

Yazarlar:

Rahmi Kocaman | Serkan Ateş

Yayıncı:

Kirikkale University

Ana Başlıklar:

Materials Engineering (Other) | Mechanical Engineering

Dergi:

International Journal of Engineering Research and Development Vol.15 Issue 2, pp.598-609

Belge Tipi:

Makale

Yayın Tarihi:

7/2023

Belge Dili:

Türkçe

Document ID (Org No.):

2001284776

pISSN:

1308-5506

Anahtar kelimeler:

Özet:

 In this study, we have focused on the use of waste coal slag, which is formed under the boiler as a result of the combustion of coal used as fuel in thermal power plants, as reinforcement in Metal Matrix Composites MMC and its compatibility with SiC and Al2O3. Al6061 alloy, which is frequently used in the automobile and aerospace industry, was chosen as the matrix. Composites were fabricated using reinforcements with 22-59µm powder size at reinforcement-to-volume ratios of 1, 3, 5 wt, binary hybrid composites at 4, 6, 8 wt, and ternary hybrid tri-hybrid composites at 7, 9, 11 wt. Two-stage stir casting method, which is one of the liquid-state production methods, was used in the production of composites. The microstructures of the composites were monitored by scanning electron microscopy to determine the presence of reinforcements and the homogeneous distribution of the reinforcement in the microstructure. The hardness of the composites was determined by the Brinell hardness measurement method. Pin on Disk method, one of the standard tests used to measure the wear behavior of the composites produced within the scope of this study and to perform dry friction wear tests, was used. The wear characteristics of the material pairs were generated from the obtained test results. Coal slag powder-reinforced composites were successfully produced. Hardness tests revealed that coal slag powder can increase the composites hardness s almost as effectively as SiC and Al2O3. Similar to the other reinforcements, the addition of the coal slag powder improved the abrasion resistance of the composites.

 In this study, we have focused on the use of waste coal slag, which is formed under the boiler as a result of the combustion of coal used as fuel in thermal power plants, as reinforcement in Metal Matrix Composites MMC and its compatibility with SiC and Al2O3. Al6061 alloy, which is frequently used in the automobile and aerospace industry, was chosen as the matrix. Composites were fabricated using reinforcements with 22-59µm powder size at reinforcement-to-volume ratios of 1, 3, 5 wt, binary hybrid composites at 4, 6, 8 wt, and ternary hybrid tri-hybrid composites at 7, 9, 11 wt. Two-stage stir casting method, which is one of the liquid-state production methods, was used in the production of composites. The microstructures of the composites were monitored by scanning electron microscopy to determine the presence of reinforcements and the homogeneous distribution of the reinforcement in the microstructure. The hardness of the composites was determined by the Brinell hardness measurement method. Pin on Disk method, one of the standard tests used to measure the wear behavior of the composites produced within the scope of this study and to perform dry friction wear tests, was used. The wear characteristics of the material pairs were generated from the obtained test results. Coal slag powder-reinforced composites were successfully produced. Hardness tests revealed that coal slag powder can increase the composites hardness s almost as effectively as SiC and Al2O3. Similar to the other reinforcements, the addition of the coal slag powder improved the abrasion resistance of the composites.

 In this study, we have focused on the use of waste coal slag, which is formed under the boiler as a result of the combustion of coal used as fuel in thermal power plants, as reinforcement in Metal Matrix Composites MMC and its compatibility with SiC and Al2O3. Al6061 alloy, which is frequently used in the automobile and aerospace industry, was chosen as the matrix. Composites were fabricated using reinforcements with 22-59µm powder size at reinforcement-to-volume ratios of 1, 3, 5 wt, binary hybrid composites at 4, 6, 8 wt, and ternary hybrid tri-hybrid composites at 7, 9, 11 wt. Two-stage stir casting method, which is one of the liquid-state production methods, was used in the production of composites. The microstructures of the composites were monitored by scanning electron microscopy to determine the presence of reinforcements and the homogeneous distribution of the reinforcement in the microstructure. The hardness of the composites was determined by the Brinell hardness measurement method. Pin on Disk method, one of the standard tests used to measure the wear behavior of the composites produced within the scope of this study and to perform dry friction wear tests, was used. The wear characteristics of the material pairs were generated from the obtained test results. Coal slag powder-reinforced composites were successfully produced. Hardness tests revealed that coal slag powder can increase the composites hardness s almost as effectively as SiC and Al2O3. Similar to the other reinforcements, the addition of the coal slag powder improved the abrasion resistance of the composites.

 Bu çalışmada Metal Matrisli Kompozitlerde MMK, termik santralde yakıt olarak kullanılan kömürün yanması sonucunda kazan altında oluşan atık kömür cürufunun takviye olarak kullanılabilirliğine ve SiC, Al2O3 ile uyumuna odaklanılmıştır. Matris olarak otomobil ve havacılık endüstrisinde sıklıkla kullanılan Al6061 alaşımı seçilmiştir. Kompozitler ağırlıkça 1, 3, 5, ikili hibrit kompozitler ağırlıkça 4, 6, 8 ve üçlü hibrit kompozitler ise ağırlıkça 7, 9, 11 takviye-hacim oranlarında 22-59µm toz boyutuna sahip takviyeler kullanılarak üretilmiştir. Kompozitlerin üretiminde sıvı hal üretim yöntemlerinden olan iki kademeli karıştırmalı döküm yöntemi kullanılmıştır. Üretilen kompozitlerin mikro yapıları taramalı elektron mikroskobu ile görüntülenerek takviyelerin varlığı ve takviyenin içyapıda homojen dağılımı tespit edilmiştir. Kompozitlerin sertlikleri Brinell sertlik ölçüm yöntemi ile belirlenmiştir. Bu çalışma kapsamında üretilen kompozitlerin aşınma davranışını ölçmek ve kuru sürtünmeli aşınma testlerini yapmak için kullanılan standart testlerden Pin on Disk yöntemi kullanılmıştır. Elde edilen deney sonuçlarından malzeme çiftlerinin aşınma karakteristikleri oluşturulmuştur. Kömür cürufu tozu takviyeli kompozitler başarı ile üretilmiştir. Sertlik ölçümlerinde kömür cürufu tozunun da kompozitin sertliğini arttırmada neredeyse SiC ve Al2O3 kadar etkili olabildiği belirlenmiştir. Kömür cürufu tozu takviyesi de diğer takviye elemanları gibi kompozitlerin aşınma dayanımını artırmıştır.

Makale detayları

Investigation of Hardness and Wear Behavior of Al6061 Matrix SiC Al2O3 and Coal Slag Powder Reinforced Hybrid Composites

Yazarlar:

Rahmi Kocaman | Serkan Ateş

Yayıncı:

Kirikkale University

Ana Başlıklar:

Materials Engineering (Other) | Mechanical Engineering

Dergi:

International Journal of Engineering Research and Development Vol.15 Issue 2, pp.598-609

Belge Tipi:

Makale

Yayın Tarihi:

7/2023

Belge Dili:

Türkçe

Document ID (Org No.):

2001284776

pISSN:

1308-5506

Composite

Stir Casting

Wear

Al6061

Coal Slag Powder

Kompozit

Karıştırmalı Döküm

Aşınma

Al6061

Kömür Curufu Tozu

Sayı

Makale detayları

Yazarlar: Rahmi Kocaman | Serkan Ateş

Yayıncı: Kirikkale University

Ana Başlıklar: Materials Engineering (Other) | Mechanical Engineering

Dergi: International Journal of Engineering Research and Development Vol.15 Issue 2, pp.598-609

Belge Tipi: Makale

Yayın Tarihi: 7/2023

Belge Dili: Türkçe

Document ID (Org No.): 2001284776

pISSN: 1308-5506

Sayı

Yazarlar:

Rahmi Kocaman | Serkan Ateş

Yayıncı:

Kirikkale University

Ana Başlıklar:

Materials Engineering (Other) | Mechanical Engineering

Dergi:

International Journal of Engineering Research and Development Vol.15 Issue 2, pp.598-609

Belge Tipi:

Makale

Yayın Tarihi:

7/2023

Belge Dili:

Türkçe

Document ID (Org No.):

2001284776

pISSN:

1308-5506