Subscribe to the EPMA Mailing List

Electrochemical comparative study of corrosion behavior in physiological conditions of conventional and powder metallurgy titanium alloys.

  • : 1UNIVERSITY CARLOS III OF MADRID, 2Hospital Universitario La Paz-IdiPAZ
  • : PDF Download
  • : 2015


An electrochemical study on two titanium alloys employed in orthopaedic implants - Ti6Al4V and Ti6Al7Nb - obtained through powder metallurgy (PM) was conducted in comparison with Ti6Al4V obtained conventionally. Samples were immersed in a simulated body fluid and incubated at 37°C for different times. The influences of processing method (PM or conventional) and composition on corrosion resistance were investigated. Corrosion resistance was evaluated with electrochemical impedance spectroscopy. All samples showed good reproducibility and high impedance modulus values approximately in the order of 106 Ω. Although no significant differences in the evolution of the corrosion behaviour over different immersion times were found, Ti-6Al-7Nb processed by PM delivered a steady growth of corrosion resistance from day one until twelve weeks of immersion and showed better performance between the two compositions and similar or superior corrosion resistance in physiological conditions to the alloy obtained conventionally. SEM revealed no evidence of pitting corrosion.


Non-EPMA member price shown. If you are an EPMA member please log in for your discount.
If you are logged in as a member but are still seeing this message, please contact us at
If you would like to find out about becoming an EPMA member, click here.
This product is currently only available to purchase via this website to companies with a valid EU VAT Number. If you are an individual or company without an EU VAT number wishing to purchase this, please contact EPMA directly at Alternatively, past Euro PM papers are available via ProQuest and Elsevier.
* This field is required

Other publications you may be interested in:

Go To Top