Adsorption and inhibition effect of benzotriazole on brass-118 and brass-MM55 in artificial seawater
Yükleniyor...
Dosyalar
Tarih
2012
Yazarlar
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Maik Nauka/Interperiodica/Springer
Erişim Hakkı
info:eu-repo/semantics/closedAccess
Özet
Corrosion behaviours of the new type special commercial brass alloys, called 118 and MM55, have been investigated by Tafel Extrapolation (TP) and Linear Polarization (LP) methods in artificial seawater. Inhibition effect of benzotrizole (BTA) of four different concentrations for the corrosion of brass samples was investigated. It was found that BTA was acting as mixed type inhibitor and inhibition efficiency was increasing with the increase of BTA concentration. The change of the degree of surface coverage (theta) as a function of inhibitor concentration (c) shows that BTA follows Langmuir adsorption isotherm. Values of adsorption equilibrium constants (K (ads)) and values of free energies of adsorption (Delta G (ads)) were calculated from adsorption isotherms. Results reveal that chemisorption is the initial step of inhibition processes.
Açıklama
WOS: 000304461000014
Anahtar Kelimeler
Kaynak
Protection Of Metals And Physical Chemistry Of Surfaces
WoS Q Değeri
Q2
Scopus Q Değeri
Q2
Cilt
48
Sayı
3
