Next Article in Journal
Palladium(II) Recovery from Hydrochloric Acid Solutions by N,N′-Dimethyl-N,N′-Dibutylthiodiglycolamide
Previous Article in Journal
Effect of Additions of Ceramic Nanoparticles and Gas-Dynamic Treatment on Al Casting Alloys
Article Menu

Export Article

Open AccessArticle
Metals 2015, 5(4), 2289-2302; doi:10.3390/met5042289

Corrosion Behavior in 3.5% NaCl Solutions of γ-TiAl Processed by Electron Beam Melting Process

1
Centre of Excellence for Research in Engineering Materials, Advanced Manufacturing Institute, King Saud University, Riyadh 11421, Saudi Arabia
2
Princess Fatima Alnijiris’s Research Chair for Advanced Manufacturing Technology (FARCAMT), Advanced Manufacturing Institute, King Saud University, Riyadh 11421, Saudi Arabia
3
Electrochemistry and Corrosion Laboratory, Physical Chemistry Department, National Research Centre, Cairo 12622, Egypt
*
Authors to whom correspondence should be addressed.
Academic Editor: Hugo F. Lopez
Received: 19 October 2015 / Revised: 22 November 2015 / Accepted: 27 November 2015 / Published: 3 December 2015
View Full-Text   |   Download PDF [1123 KB, uploaded 3 December 2015]   |  

Abstract

In this work, the corrosion behavior of γ-TiAl alloy produced by electron beam melting (EBM) process in 3.5% NaCl solution was reported. The study has been performed using potentiodynamic polarization resistance and electrochemical impedance spectroscopy techniques and complemented by scanning electron microscopy investigations. All measurements were carried out after different periods of alloy exposure in the chloride solutions and at different temperatures. The results showed that the EBM produced γ-TiAl alloy has excellent corrosion resistance confirmed by the high values of polarization resistance and the low values of corrosion current and corrosion rate. With increase in immersion time, the corrosion potential moved to a higher positive value with a decrease in corrosion current and corrosion rate, which suggests an improvement in corrosion resistance. On the other hand, the increase of temperature was found to significantly increase the corrosion of the processed γ-TiAl alloy. View Full-Text
Keywords: titanium aluminides; corrosion; electron beam melting; polarization; EIS titanium aluminides; corrosion; electron beam melting; polarization; EIS
Figures

Figure 1

This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

Scifeed alert for new publications

Never miss any articles matching your research from any publisher
  • Get alerts for new papers matching your research
  • Find out the new papers from selected authors
  • Updated daily for 49'000+ journals and 6000+ publishers
  • Define your Scifeed now

SciFeed Share & Cite This Article

MDPI and ACS Style

Seikh, A.H.; Mohammad, A.; Sherif, E.-S.M.; Al-Ahmari, A. Corrosion Behavior in 3.5% NaCl Solutions of γ-TiAl Processed by Electron Beam Melting Process. Metals 2015, 5, 2289-2302.

Show more citation formats Show less citations formats

Related Articles

Article Metrics

Article Access Statistics

1

Comments

[Return to top]
Metals EISSN 2075-4701 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top