Effect of anodic potential on the electrochemical response of passive layers formed on the surface of coarse- and fine-grained pure nickel in borate buffer solutions
被引:21
|
作者:
论文数: 引用数:
h-index:
机构:
Fattah-alhosseini, Arash
[1
]
Naseri, Majid
论文数: 0引用数: 0
h-index: 0
机构:
Shahid Chamran Univ Ahvaz, Fac Engn, Dept Mat Sci & Engn, Ahvaz, IranBu Ali Sina Univ, Dept Mat Engn, Hamadan 6517838695, Iran
Naseri, Majid
[2
]
Gashti, Seyed Omid
论文数: 0引用数: 0
h-index: 0
机构:
Bu Ali Sina Univ, Dept Mat Engn, Hamadan 6517838695, IranBu Ali Sina Univ, Dept Mat Engn, Hamadan 6517838695, Iran
Gashti, Seyed Omid
[1
]
Vafaeian, Saeed
论文数: 0引用数: 0
h-index: 0
机构:
Bu Ali Sina Univ, Dept Mat Engn, Hamadan 6517838695, IranBu Ali Sina Univ, Dept Mat Engn, Hamadan 6517838695, Iran
Vafaeian, Saeed
[1
]
Keshavarz, Mohsen K.
论文数: 0引用数: 0
h-index: 0
机构:
McGill Univ, Dept Min & Met Engn, Montreal, PQ H3A 0C5, CanadaBu Ali Sina Univ, Dept Mat Engn, Hamadan 6517838695, Iran
Keshavarz, Mohsen K.
[3
]
机构:
[1] Bu Ali Sina Univ, Dept Mat Engn, Hamadan 6517838695, Iran
[2] Shahid Chamran Univ Ahvaz, Fac Engn, Dept Mat Sci & Engn, Ahvaz, Iran
[3] McGill Univ, Dept Min & Met Engn, Montreal, PQ H3A 0C5, Canada
In the present work, the role of cold deformation and anodic potential on the electrochemical response of pure nickel in borate buffer solutions were investigated. The application of cold deformation gave rise to a more localized microstructure that contained a greater number of fine grains. In order to investigation of the electrochemical response of specimens, potentiodynamic polarization (PDP), electrochemical impedance spectroscopy (EIS), and Mott-Schottky (M-S) analysis were performed. As a result, with increasing of applied potential, the polarization resistance and passive film thickness decreased. Also, density of electron acceptor at passive layer decreased by increasing of applied potential.