Evaluation of Tribological and Electrochemical Properties of Multiphase CoCuFeNiNb High Entropy Alloy

Sefa Emre Sünbül; Kürşat İcin

Makale detayları

Evaluation of Tribological and Electrochemical Properties of Multiphase CoCuFeNiNb High Entropy Alloy

Yazarlar:

Sefa Emre Sünbül | Kürşat İcin

Yayıncı:

Ordu University

Ana Başlıklar:

Metaller ve Alaşım Malzemeleri

Dergi:

Ordu Üniversitesi Bilim ve Teknoloji Dergisi Vol.14 Issue 1, pp.176-190

Belge Tipi:

Makale

Yayın Tarihi:

6/2024

Belge Dili:

İngilizce

Document ID (Org No.):

2001321830

pISSN:

2146-6440

Anahtar kelimeler:

Özet:

 Recent research has heavily focused on high entropy alloys HEAs due to their promising potential for diverse industrial applications. This study investigates the CoCuFeNiNb alloy, analyzing its structural, tribological, and electrochemical characteristics. The alloy was synthesized using vacuum arc melting in an argon environment and was subsequently examined through X-ray diffraction XRD, scanning electron microscopy SEM, energy dispersive X-ray spectroscopy EDX, wear testing, and corrosion analysis. The tribological and electrochemical performances were assessed through wear and corrosion experiments. The results reveal that the alloy contains FCC, BCC, and Laves phases. The coefficient of friction for the CoCuFeNiNb high entropy alloy increased to 0.28, 0.5, and 0.78 under loads of 0.25 MPa, 0.5 MPa, and 1 MPa, respectively. Observations of the wear surface showed abrasion wear at low pressure, delamination layers at medium pressure, and plastic deformation zones at high pressure. In a 3.5 wt NaCl solution, the alloy exhibited a corrosion potential of -0.236 V and a corrosion current density of 1.8910⁵ Acm².

 Recent research has heavily focused on high entropy alloys HEAs due to their promising potential for diverse industrial applications. This study investigates the CoCuFeNiNb alloy, analyzing its structural, tribological, and electrochemical characteristics. The alloy was synthesized using vacuum arc melting in an argon environment and was subsequently examined through X-ray diffraction XRD, scanning electron microscopy SEM, energy dispersive X-ray spectroscopy EDX, wear testing, and corrosion analysis. The tribological and electrochemical performances were assessed through wear and corrosion experiments. The results reveal that the alloy contains FCC, BCC, and Laves phases. The coefficient of friction for the CoCuFeNiNb high entropy alloy increased to 0.28, 0.5, and 0.78 under loads of 0.25 MPa, 0.5 MPa, and 1 MPa, respectively. Observations of the wear surface showed abrasion wear at low pressure, delamination layers at medium pressure, and plastic deformation zones at high pressure. In a 3.5 wt NaCl solution, the alloy exhibited a corrosion potential of -0.236 V and a corrosion current density of 1.8910⁵ Acm².

 Recent research has heavily focused on high entropy alloys HEAs due to their promising potential for diverse industrial applications. This study investigates the CoCuFeNiNb alloy, analyzing its structural, tribological, and electrochemical characteristics. The alloy was synthesized using vacuum arc melting in an argon environment and was subsequently examined through X-ray diffraction XRD, scanning electron microscopy SEM, energy dispersive X-ray spectroscopy EDX, wear testing, and corrosion analysis. The tribological and electrochemical performances were assessed through wear and corrosion experiments. The results reveal that the alloy contains FCC, BCC, and Laves phases. The coefficient of friction for the CoCuFeNiNb high entropy alloy increased to 0.28, 0.5, and 0.78 under loads of 0.25 MPa, 0.5 MPa, and 1 MPa, respectively. Observations of the wear surface showed abrasion wear at low pressure, delamination layers at medium pressure, and plastic deformation zones at high pressure. In a 3.5 wt NaCl solution, the alloy exhibited a corrosion potential of -0.236 V and a corrosion current density of 1.8910⁵ Acm².

 Yüksek entropili alaşımlar YEAlar, son yıllarda yoğun araştırmalara konu olmuş ve farklı endüstriyel uygulamalara yönelik potansiyel göstermektedir. Bu çalışma, CoCuFeNiNb alaşımının yapısal, tribolojik ve elektrokimyasal özelliklerini incelemektedir. Alaşım, Ar atmosferinde vakumlu ark eritme yöntemi ile hazırlanmış ve XRD, SEM, EDX, aşınma ve korozyon analizleri ile karakterize edilmiştir. Aşınma testleri ve korozyon deneyleri, alaşımın tribolojik ve elektrokimyasal performansını değerlendirmiştir. Bulgular, alaşımın YMK, HMK ve Laves fazlarından oluştuğunu göstermektedir. CoCuFeNiNb yüksek entropili alaşımının sürtünme katsayısı, 0.25 MPa, 0.5 MPa ve 1 MPa yük altında sırasıyla 0.28, 0.5 ve 0.78 olarak artış göstermiştir. Aşınma yüzeyinde düşük basınçta abrazyon izleri, orta basınçta delaminasyon tabakaları ve yüksek basınçta plastik deformasyon bölgeleri gözlemlenmiştir. CoCuFeNiNb alaşımının 3,5 NaCl çözeltisindeki korozyon potansiyeli -0,236 V ve korozyon akım yoğunluğu 1,8910⁵ Acm² olarak belirlenmiştir.

Makale detayları

Evaluation of Tribological and Electrochemical Properties of Multiphase CoCuFeNiNb High Entropy Alloy

Yazarlar:

Sefa Emre Sünbül | Kürşat İcin

Yayıncı:

Ordu University

Ana Başlıklar:

Metaller ve Alaşım Malzemeleri

Dergi:

Ordu Üniversitesi Bilim ve Teknoloji Dergisi Vol.14 Issue 1, pp.176-190

Belge Tipi:

Makale

Yayın Tarihi:

6/2024

Belge Dili:

İngilizce

Document ID (Org No.):

2001321830

pISSN:

2146-6440

high entropy alloy

vacuum arc melting

tribological properties

corrosion propertiesyüksek entropili alaşım

vakum ark ergime

tribolojik özellikler

korozyon özellikleri

Sayı

Makale detayları

Yazarlar: Sefa Emre Sünbül | Kürşat İcin

Yayıncı: Ordu University

Ana Başlıklar: Metaller ve Alaşım Malzemeleri

Dergi: Ordu Üniversitesi Bilim ve Teknoloji Dergisi Vol.14 Issue 1, pp.176-190

Belge Tipi: Makale

Yayın Tarihi: 6/2024

Belge Dili: İngilizce

Document ID (Org No.): 2001321830

pISSN: 2146-6440

Sayı

Yazarlar:

Sefa Emre Sünbül | Kürşat İcin

Yayıncı:

Ordu University

Ana Başlıklar:

Metaller ve Alaşım Malzemeleri

Dergi:

Ordu Üniversitesi Bilim ve Teknoloji Dergisi Vol.14 Issue 1, pp.176-190

Belge Tipi:

Makale

Yayın Tarihi:

6/2024

Belge Dili:

İngilizce

Document ID (Org No.):

2001321830

pISSN:

2146-6440