Influence of Mn on the corrosion behavior of CuAlMn alloy in NaCl solution

The corrosion behavior of different CuAlMn shape memory alloys (Cu-12%Al-4%Mn, Cu-12.3%Al-5.2%-Mn and Cu-12%Al-6%Mn) in 0.9% NaCl solution at pH = 7.4 and T = 37°C was investigated using open circuit potential measurements, polarization and electrochemical impedance spectroscopy methods. It has been found that the corrosion resistance of the tested samples at open circuit potential increases with increasing Mn content in the alloy, i.e. growing in the order of: Cu-12%Al-4% Mn 0.1 V), the corrosion rate increases with Mn content in the alloy, and light microscopy investigations reveal pits on the surface of Cu-12.3%Al-5.2%-Mn and Cu-12%Al-6%Mn alloys, while Cu-12%Al-4%Mn surface is almost clear of any corrosion damage

Influence of Mn on the corrosion behavior of CuAlMn alloy in NaCl solution

The corrosion behavior of different CuAlMn shape memory alloys (Cu-12%Al-4%Mn, Cu-12.3%Al-5.2%-Mn and Cu-12%Al-6%Mn) in 0.9% NaCl solution at pH = 7.4 and T = 37°C was investigated using open circuit potential measurements, polarization and electrochemical impedance spectroscopy methods. It has been found that the corrosion resistance of the tested samples at open circuit potential increases with increasing Mn content in the alloy, i.e. growing in the order of: Cu-12%Al-4% Mn 0.1 V), the corrosion rate increases with Mn content in the alloy, and light microscopy investigations reveal pits on the surface of Cu-12.3%Al-5.2%-Mn and Cu-12%Al-6%Mn alloys, while Cu-12%Al-4%Mn surface is almost clear of any corrosion damage

Influence of Mn on the corrosion behavior of CuAlMn alloy in NaCl solution : diploma thesis

Korozijsko ponašanje različitih CuAlMn legura s prisjetljivosti oblika (Cu-12%Al-4%Mn, Cu-12.3%Al-5.2%- Mn i Cu-12%Al-6%Mn) u 0.9 % NaCl otopini (pri pH = 7.4 i T = 37 °C) ispitano je praćenjem vremenske promjene potencijala otvorenog strujnog kruga te primjenom polarizacijskih metoda i elektrokemijske impedancijske spektroskopije. Ustanovljeno je da na potencijalu otvorenog strujnog kruga korozijska otpornost ispitivanih uzoraka raste s porastom sadržaja Mn u leguri, tj. redom: Cu-12%Al-4%Mn 0.1 V), brzina korozije raste sa sadržajem Mn u leguri. Ispitivanjem uzoraka svjetlosnim mikroskopom uočena su oštećenja na površini Cu-12.3%Al-5.2%-Mn i Cu-12%Al-6%Mn legura, dok je površina Cu-12%Al-4%Mn legure gotovo neoštećena korozijom, što je potvrđeno i SEM/EDS analizom površine uzoraka.The corrosion behavior of different CuAlMn shape memory alloys (Cu-12%Al-4%Mn, Cu-12.3%Al-5.2%-Mn and Cu-12%Al-6%Mn) in 0.9 % NaCl solution at pH = 7.4 and T = 37 °C was investigated using open circuit potential measurements, polarization and electrochemical impedance spectroscopy methods. It has been found that the corrosion resistance of the tested samples at open circuit potential increases with increasing Mn content in the alloy, i.e. growing in the order of: Cu-12%Al-4% Mn 0.1 V), the corrosion rate increases with Mn content in the alloy, and light microscopy investigations reveal pits on the surface of Cu-12.3%Al-5.2%-Mn and Cu-12%Al-6%Mn alloys, while Cu- 12%Al-4%Mn surface is almost clear of any corrosion damage, which was also confirmed by SEM/EDS analysis of the samples surface

Influence of Mn on the corrosion behavior of CuAlMn alloy in NaCl solution : diploma thesis

Korozijsko ponašanje različitih CuAlMn legura s prisjetljivosti oblika (Cu-12%Al-4%Mn, Cu-12.3%Al-5.2%- Mn i Cu-12%Al-6%Mn) u 0.9 % NaCl otopini (pri pH = 7.4 i T = 37 °C) ispitano je praćenjem vremenske promjene potencijala otvorenog strujnog kruga te primjenom polarizacijskih metoda i elektrokemijske impedancijske spektroskopije. Ustanovljeno je da na potencijalu otvorenog strujnog kruga korozijska otpornost ispitivanih uzoraka raste s porastom sadržaja Mn u leguri, tj. redom: Cu-12%Al-4%Mn 0.1 V), brzina korozije raste sa sadržajem Mn u leguri. Ispitivanjem uzoraka svjetlosnim mikroskopom uočena su oštećenja na površini Cu-12.3%Al-5.2%-Mn i Cu-12%Al-6%Mn legura, dok je površina Cu-12%Al-4%Mn legure gotovo neoštećena korozijom, što je potvrđeno i SEM/EDS analizom površine uzoraka.The corrosion behavior of different CuAlMn shape memory alloys (Cu-12%Al-4%Mn, Cu-12.3%Al-5.2%-Mn and Cu-12%Al-6%Mn) in 0.9 % NaCl solution at pH = 7.4 and T = 37 °C was investigated using open circuit potential measurements, polarization and electrochemical impedance spectroscopy methods. It has been found that the corrosion resistance of the tested samples at open circuit potential increases with increasing Mn content in the alloy, i.e. growing in the order of: Cu-12%Al-4% Mn 0.1 V), the corrosion rate increases with Mn content in the alloy, and light microscopy investigations reveal pits on the surface of Cu-12.3%Al-5.2%-Mn and Cu-12%Al-6%Mn alloys, while Cu- 12%Al-4%Mn surface is almost clear of any corrosion damage, which was also confirmed by SEM/EDS analysis of the samples surface

Influence of Mn on the corrosion behavior of CuAlMn alloy in NaCl solution : diploma thesis

Korozijsko ponašanje različitih CuAlMn legura s prisjetljivosti oblika (Cu-12%Al-4%Mn, Cu-12.3%Al-5.2%- Mn i Cu-12%Al-6%Mn) u 0.9 % NaCl otopini (pri pH = 7.4 i T = 37 °C) ispitano je praćenjem vremenske promjene potencijala otvorenog strujnog kruga te primjenom polarizacijskih metoda i elektrokemijske impedancijske spektroskopije. Ustanovljeno je da na potencijalu otvorenog strujnog kruga korozijska otpornost ispitivanih uzoraka raste s porastom sadržaja Mn u leguri, tj. redom: Cu-12%Al-4%Mn 0.1 V), brzina korozije raste sa sadržajem Mn u leguri. Ispitivanjem uzoraka svjetlosnim mikroskopom uočena su oštećenja na površini Cu-12.3%Al-5.2%-Mn i Cu-12%Al-6%Mn legura, dok je površina Cu-12%Al-4%Mn legure gotovo neoštećena korozijom, što je potvrđeno i SEM/EDS analizom površine uzoraka.The corrosion behavior of different CuAlMn shape memory alloys (Cu-12%Al-4%Mn, Cu-12.3%Al-5.2%-Mn and Cu-12%Al-6%Mn) in 0.9 % NaCl solution at pH = 7.4 and T = 37 °C was investigated using open circuit potential measurements, polarization and electrochemical impedance spectroscopy methods. It has been found that the corrosion resistance of the tested samples at open circuit potential increases with increasing Mn content in the alloy, i.e. growing in the order of: Cu-12%Al-4% Mn 0.1 V), the corrosion rate increases with Mn content in the alloy, and light microscopy investigations reveal pits on the surface of Cu-12.3%Al-5.2%-Mn and Cu-12%Al-6%Mn alloys, while Cu- 12%Al-4%Mn surface is almost clear of any corrosion damage, which was also confirmed by SEM/EDS analysis of the samples surface