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Evaluation of Nanocrystalline Microstructure, Abrasion, and Corrosion Properties of Carbon Steel Treated by Plasma Electrolytic Boriding
Author(s) -
Taheri Peyman,
Dehghanian Changiz,
Aliofkhazraei Mahmood,
Rouhaghdam Alireza Sabour
Publication year - 2007
Publication title -
plasma processes and polymers
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.644
H-Index - 74
eISSN - 1612-8869
pISSN - 1612-8850
DOI - 10.1002/ppap.200731803
Subject(s) - materials science , boriding , nanocrystalline material , corrosion , dielectric spectroscopy , microstructure , metallurgy , scanning electron microscope , coating , electrolyte , carbon steel , abrasion (mechanical) , composite material , electrochemistry , boride , nanotechnology , chemistry , electrode
Plasma electrolytic boriding (PEB) is a kind of plasma electrolytic saturation (PES) which is a relatively new surface engineering treatment to produce nanocrystalline coatings. This method of treatment provides high abrasion and corrosion resistance because of the nanocrystalline interlayer formation. In this study, PEB was applied on low alloy steel substrates, and the surface morphology and phase composition of the internal nanocrystalline layer formed has been studied using X‐ray diffraction and scanning electron microscopy. Coating wear properties were assessed by conducting pin‐on‐disk wear tests. The corrosion resistance and electrochemical properties of the nanocrystalline coating were investigated by measuring the linear polarization resistance and also electrochemical impedance spectroscopy (EIS).