Investigation of microstructural, thermal and mechanical properties of Al50Si25B25 alloy

Hakan Yaykaşlı; Musa Gögebakan

Makale detayları

Investigation of microstructural, thermal and mechanical properties of Al50Si25B25 alloy

Yazarlar:

Hakan Yaykaşlı | Musa Gögebakan

Yayıncı:

Nigde Omer Halisdemir University

Ana Başlıklar:

Malzeme Üretim Teknolojileri

Dergi:

Niğde Ömer Halisdemir Üniversitesi Mühendislik Bilimleri Dergisi Vol.12 Issue 1, pp.310-316

Belge Tipi:

Makale

Yayın Tarihi:

1/2023

Belge Dili:

Türkçe

Document ID (Org No.):

2001282492

pISSN:

2564-6605

Anahtar kelimeler:

Özet:

 In this study, Al50Si25B25 alloy was produced as ingot by arc melting method. The microstructure of the Al50Si25B25 alloy was investigated by X-ray diffraction XRD, the morphological properties were investigated by scanning electron microscopy SEM, and its thermal properties were investigated by differential thermal analysis DTA and differential scanning calorimetry DSC. The mechanical properties of the alloy were investigated by Vickers microhardness HV test.The XRD result showed that B and Si atoms dissolved in the Al lattice to form the intermetallic phase of the α-Al B, Si solid solution. XRD and SEM results showed that the microstructure of the alloys consisted of α-AlB,Si solid solution, Si and AlB2 intermetallic phases. SEM results showed that the morphological structure of the alloys formed as dendritic and eutectic structures. DSC and DTA results showed an endothermic peak indicating the melting of the α-AlB,Si phase. The microhardness value of the alloy was measured as 10815 HV at room temperature. This value increased as a result of the heat treatment and increased to 2329 HV at 300 ºC. It was observed that the microhardness value of the alloy decreased at temperatures higher than 300 ºC.

 In this study, Al50Si25B25 alloy was produced as ingot by arc melting method. The microstructure of the Al50Si25B25 alloy was investigated by X-ray diffraction XRD, the morphological properties were investigated by scanning electron microscopy SEM, and its thermal properties were investigated by differential thermal analysis DTA and differential scanning calorimetry DSC. The mechanical properties of the alloy were investigated by Vickers microhardness HV test.The XRD result showed that B and Si atoms dissolved in the Al lattice to form the intermetallic phase of the α-Al B, Si solid solution. XRD and SEM results showed that the microstructure of the alloys consisted of α-AlB,Si solid solution, Si and AlB2 intermetallic phases. SEM results showed that the morphological structure of the alloys formed as dendritic and eutectic structures. DSC and DTA results showed an endothermic peak indicating the melting of the α-AlB,Si phase. The microhardness value of the alloy was measured as 10815 HV at room temperature. This value increased as a result of the heat treatment and increased to 2329 HV at 300 ºC. It was observed that the microhardness value of the alloy decreased at temperatures higher than 300 ºC.

 In this study, Al50Si25B25 alloy was produced as ingot by arc melting method. The microstructure of the Al50Si25B25 alloy was investigated by X-ray diffraction XRD, the morphological properties were investigated by scanning electron microscopy SEM, and its thermal properties were investigated by differential thermal analysis DTA and differential scanning calorimetry DSC. The mechanical properties of the alloy were investigated by Vickers microhardness HV test.The XRD result showed that B and Si atoms dissolved in the Al lattice to form the intermetallic phase of the α-Al B, Si solid solution. XRD and SEM results showed that the microstructure of the alloys consisted of α-AlB,Si solid solution, Si and AlB2 intermetallic phases. SEM results showed that the morphological structure of the alloys formed as dendritic and eutectic structures. DSC and DTA results showed an endothermic peak indicating the melting of the α-AlB,Si phase. The microhardness value of the alloy was measured as 10815 HV at room temperature. This value increased as a result of the heat treatment and increased to 2329 HV at 300 ºC. It was observed that the microhardness value of the alloy decreased at temperatures higher than 300 ºC.

 Bu çalışmada Al50Si25B25 alaşımı ark ergitme yöntemi ile külçe olarak üretilmiştir. Al50Si25B25 alaşımının faz analizi X-ışını difraksiyonu XRD, morfolojik özellikleri taramalı elektron mikroskobu SEM ile termal özellikleri ise diferansiyel termal analiz DTA ve diferansiyel taramalı kalorimetre DSC ile araştırılmıştır. Alaşımın mekanik özelliği Vickers mikrosertlik HV testi ile incelenmiştir. XRD analizinden, Bor B ve Silisyum Si atomlarının Al kafesi içerisinde çözünerek α-AlB,Si katı çözeltisini oluşturduğu tespit edilmiştir. XRD ve SEM sonuçları, alaşımın mikro yapısının, α-AlB,Si katı çözeltisi, AlB2 intermetalik fazı ve Si fazlarından oluştuğunu göstermiştir. SEM sonuçları alaşımların morfolojik yapısının dendritik ve ötektik yapılar şeklinde oluştuğunu göstermiştir. DSC ve DTA sonuçları, α-AlB,Si fazının ergimesini ifade eden bir endotermik pik göstermiştir. Alaşımın mikro sertlik değeri oda sıcaklığında 10815 HV olarak ölçülmüştür. Bu değer termal işlem sonucu artmış ve 300 ºCde 2329 HV değerine çıkmıştır. 300 ºCden daha yüksek sıcaklıklarda alaşımın mikrosertlik değerinin azaldığı gözlenmiştir.

Makale detayları

Investigation of microstructural, thermal and mechanical properties of Al50Si25B25 alloy

Yazarlar:

Hakan Yaykaşlı | Musa Gögebakan

Yayıncı:

Nigde Omer Halisdemir University

Ana Başlıklar:

Malzeme Üretim Teknolojileri

Dergi:

Niğde Ömer Halisdemir Üniversitesi Mühendislik Bilimleri Dergisi Vol.12 Issue 1, pp.310-316

Belge Tipi:

Makale

Yayın Tarihi:

1/2023

Belge Dili:

Türkçe

Document ID (Org No.):

2001282492

pISSN:

2564-6605

AlSiB alloy

Micro-Hardness

Microstructure

Arc melting

Alaşım

Mikrosertlik

Mikroyapı

Katılaştırma

AlSiB alloy

Micro-Hardness

Microstructure

Arc melting

Sayı

Makale detayları

Yazarlar: Hakan Yaykaşlı | Musa Gögebakan

Yayıncı: Nigde Omer Halisdemir University

Ana Başlıklar: Malzeme Üretim Teknolojileri

Dergi: Niğde Ömer Halisdemir Üniversitesi Mühendislik Bilimleri Dergisi Vol.12 Issue 1, pp.310-316

Belge Tipi: Makale

Yayın Tarihi: 1/2023

Belge Dili: Türkçe

Document ID (Org No.): 2001282492

pISSN: 2564-6605

Sayı

Yazarlar:

Hakan Yaykaşlı | Musa Gögebakan

Yayıncı:

Nigde Omer Halisdemir University

Ana Başlıklar:

Malzeme Üretim Teknolojileri

Dergi:

Niğde Ömer Halisdemir Üniversitesi Mühendislik Bilimleri Dergisi Vol.12 Issue 1, pp.310-316

Belge Tipi:

Makale

Yayın Tarihi:

1/2023

Belge Dili:

Türkçe

Document ID (Org No.):

2001282492

pISSN:

2564-6605