English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

In this research work, hafnium carbonitride (HfCN) coatings were developed via physical vapor deposition with the aim to determine the electrochemical behavior of the HfCN layers on industrial steel substrates. The HfCN coatings, deposited at various negative bias voltage were characterized by X-ray diffraction (XRD), exhibiting the crystallography orientations corresponding to a mix of HfCN, HfC and HfN phases, while the X-ray photoelectron spectroscopy (XPS) measurements were used to determinate the chemical composition of the carbon nitride coatings. By using electrochemical impedance spectroscopy (EIS) and Tafel curves, it was possible to estimate the electrochemical behavior of the HfCN coatings in a sodium chloride (NaCl) solution. Moreover, scanning electron microscopy (SEM) was performed to analyze morphological and chemical surface changes on the HfCN layer due to the reaction in NaCl/HfCN/steel surface interface. The electrochemical behavior of the HfCN coatings in relation to the uncoated AISI D3 steel showed a reduction of 98 % in corrosion rate, indicating that the applied HfCN coatings may be a promising material for industrial applications. © 2018 Published by Faculty of Engineering Corresponding author: Julio Caicedo Angulo Department of Materials Engineering, Universidad del Valle Universidad del Valle, Cali, Colombia. E-mail: g.ing.materiales@gmail.com

Tribological and Electrochemical Properties of AISI D3 Steel Coated with Hafnium Carbon Nitride