Investigation of Corrosion of Titanium in Peat Environment by Electrochemical Impedance Spectroscopy

Ayhan Orhan; Nurettin Çek

Article Details

Investigation of Corrosion of Titanium in Peat Environment by Electrochemical Impedance Spectroscopy

Authors:

Ayhan Orhan | Nurettin Çek

Publisher:

Fırat University

Main Topics:

Korozyon

Journal:

Fırat Üniversitesi Mühendislik Bilimleri Dergisi Vol.37 Issue 1, pp.467-474

Document Type:

Article

Publication Date:

3/2025

Document Language:

Turkish

Document ID (Org No.):

2001334886

pISSN:

1308-9072

Keywords:

Abstract:

 The peat that one of the soil types that plays an important role in the formation of electrochemical corrosion, covers almost 8 of the worlds land surface. However, the literature is rather insufficient in studying the corrosion behavior of peats on metallic materials. Especially considering that pipelines are manufactured from metallic materials, investigating the corrosion effect of peat on metallic materials, and developing strategies accordingly has become an important research topic. In this study, the corrosion behavior of titanium, one of the metal materials widely used in underground pipeline manufacturing, in peat environment was investigated by open circuit potential and electrochemical impedance spectroscopy. The potential, which was -0.845 mV at the beginning of the 24-hour open circuit potential observation, was measured as -0.532 mV at the end of the experiments, thus shifting to a more positive direction. The Nyquist curve obtained from the electrochemical impedance spectroscopy tests was semicircular, indicating that a barrier layer was formed on the surface of the titanium metal. Both tests revealed that the titanium metal resisted the corrosion attack of the peat.

 The peat that one of the soil types that plays an important role in the formation of electrochemical corrosion, covers almost 8 of the worlds land surface. However, the literature is rather insufficient in studying the corrosion behavior of peats on metallic materials. Especially considering that pipelines are manufactured from metallic materials, investigating the corrosion effect of peat on metallic materials, and developing strategies accordingly has become an important research topic. In this study, the corrosion behavior of titanium, one of the metal materials widely used in underground pipeline manufacturing, in peat environment was investigated by open circuit potential and electrochemical impedance spectroscopy. The potential, which was -0.845 mV at the beginning of the 24-hour open circuit potential observation, was measured as -0.532 mV at the end of the experiments, thus shifting to a more positive direction. The Nyquist curve obtained from the electrochemical impedance spectroscopy tests was semicircular, indicating that a barrier layer was formed on the surface of the titanium metal. Both tests revealed that the titanium metal resisted the corrosion attack of the peat.

 The peat that one of the soil types that plays an important role in the formation of electrochemical corrosion, covers almost 8 of the worlds land surface. However, the literature is rather insufficient in studying the corrosion behavior of peats on metallic materials. Especially considering that pipelines are manufactured from metallic materials, investigating the corrosion effect of peat on metallic materials, and developing strategies accordingly has become an important research topic. In this study, the corrosion behavior of titanium, one of the metal materials widely used in underground pipeline manufacturing, in peat environment was investigated by open circuit potential and electrochemical impedance spectroscopy. The potential, which was -0.845 mV at the beginning of the 24-hour open circuit potential observation, was measured as -0.532 mV at the end of the experiments, thus shifting to a more positive direction. The Nyquist curve obtained from the electrochemical impedance spectroscopy tests was semicircular, indicating that a barrier layer was formed on the surface of the titanium metal. Both tests revealed that the titanium metal resisted the corrosion attack of the peat.

 Elektrokimyasal korozyonun oluşumunda önemli rol oynayan toprak türlerinden biri olan turba, dünya kara yüzeyinin yaklaşık 8ini kaplamaktadır. Ancak literatür, turbaların metalik malzemeler üzerindeki korozyon davranışını incelemede oldukça yetersizdir. Özellikle boru hatlarının metalik malzemelerden imal edildiği düşünüldüğünde, turbanın metalik malzemeler üzerindeki korozyon etkisinin araştırılması ve buna göre stratejiler geliştirilmesi önemli bir araştırma konusu haline gelmiştir. Bu çalışmada, yeraltı boru hattı imalatında yaygın olarak kullanılan metal malzemelerden biri olan titanyumun turba ortamındaki korozyon davranışı açık devre potansiyeli ve elektrokimyasal empedans spektroskopisi ile incelenmiştir. 24 saatlik açık devre potansiyel gözleminin başlangıcında -0,845 mV olan potansiyel, deneylerin sonunda -0,532 mV olarak ölçülmüş ve böylece daha pozitif bir yöne kaymıştır. Elektrokimyasal empedans spektroskopisi testlerinden elde edilen Nyquist eğrisi yarım daireseldi ve bu da titanyum metalinin yüzeyinde bir bariyer tabakasının oluştuğunu göstermiştir. Her iki test de titanyum metalinin turbanın korozyon saldırısına karşı direnç gösterdiğini ortaya koymuştur.

Article Details

Investigation of Corrosion of Titanium in Peat Environment by Electrochemical Impedance Spectroscopy

Authors:

Ayhan Orhan | Nurettin Çek

Publisher:

Fırat University

Main Topics:

Korozyon

Journal:

Fırat Üniversitesi Mühendislik Bilimleri Dergisi Vol.37 Issue 1, pp.467-474

Document Type:

Article

Publication Date:

3/2025

Document Language:

Turkish

Document ID (Org No.):

2001334886

pISSN:

1308-9072

Titanium

corrosion

peat

electrochemical impedance spectroscopy.Titanyum

Korozyon

Turba

Elektrokimyasal empedans spektroskopisi

Issues

Article Details

Authors: Ayhan Orhan | Nurettin Çek

Publisher: Fırat University

Main Topics: Korozyon

Journal: Fırat Üniversitesi Mühendislik Bilimleri Dergisi Vol.37 Issue 1, pp.467-474

Document Type: Article

Publication Date: 3/2025

Document Language: Turkish

Document ID (Org No.): 2001334886

pISSN: 1308-9072

Issues

Authors:

Ayhan Orhan | Nurettin Çek

Publisher:

Fırat University

Main Topics:

Korozyon

Journal:

Fırat Üniversitesi Mühendislik Bilimleri Dergisi Vol.37 Issue 1, pp.467-474

Document Type:

Article

Publication Date:

3/2025

Document Language:

Turkish

Document ID (Org No.):

2001334886

pISSN:

1308-9072