Corrosion properties of plasma electrolytic coated samples-Reference-Cited by-同舟云学术

Corrosion properties of plasma electrolytic coated samples

Published:2007-05-29 Issue:3 Volume:54 Page:148-154
ISSN:0003-5599
Container-title:Anti-Corrosion Methods and Materials
language:en
Short-container-title:

Author:

Taheri Peyman,Aliofkhazraei Mahmood,Dehghanian Changiz,Sabour Rouhaghdam Alireza

Abstract

PurposePlasma electrolytic saturation (PES) treatments were applied on the surface of AISI H13 steel and corrosion resistance of the treated samples was investigated using electrochemical test methods. The aim was to obtain optimal corrosion resistance of the differently treated samples.Design/methodology/approachNitrocarburized and boride layers were produced on AISI H13 steel by the means of the PES technique. Different experimental parameters during each treatment provided different microstructural and electrochemical properties. The techniques used in the present investigation included X‐ray diffraction, SEM, potentiodynamic polarization measurements and electrochemical impedance spectroscopy (EIS).FindingsThe plasma electrolytic nitrocarburising coating was characterized by lower integrity than a PEB coating. All PES coated steels had a noble electrochemical behavior compared to the untreated steel. Different nano‐structures and morphologies obtained by different experimental parameters produced different electrochemical behaviors.Practical implicationsThe results obtained in this research into PES techniques can be used wherever good corrosion resistance with the highest efficiency is required.Originality/valueThe speed of treatment by plasma electrolytic saturation techniques makes this method very suitable for industrial production of components.

Publisher

Emerald

Subject

General Materials Science,General Chemical Engineering

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