Electrochemical Behavior of TiCN–Ni-Based Cermets

$48.00 plus tax (Refund Policy)

Download / Buy Article:

Abstract:

The electrochemical behavior of TiCN–20 wt% Ni cermets containing different secondary carbides (10 wt% WC, NbC, TaC, and HfC) was investigated in freely aerated 0.2 mol/L sulfuric acid. A comparison has also been made with polarization behavior of pure Ni. All the materials (except HfC-containing cermet) exhibited active–passive polarization behavior, characterized by two passive regions. The first passive region, obtained on polarizing past the zero current potential, was attributed to passive film formation due to TiCN, while the second passive film is presumably due to the presence of a Ni binder phase. The passivation behavior in the case of cermets containing various secondary carbides (WC, TaC, and NbC) was similar to baseline TiCN–20Ni cermets, while poor passivation behavior was observed in the case of TiCN–20Ni–10HfC. Efforts have been made to correlate the passivation behavior with the microstructural characteristics of sintered cermets.

Document Type: Research Article

DOI: http://dx.doi.org/10.1111/j.1551-2916.2006.01412.x

Affiliations: Department of Materials and Metallurgical Engineering, Indian Institute of Technology, IIT Kanpur, India

Publication date: January 1, 2007

Related content

Tools

Favourites

Share Content

Access Key

Free Content
Free content
New Content
New content
Open Access Content
Open access content
Subscribed Content
Subscribed content
Free Trial Content
Free trial content
Cookie Policy
X
Cookie Policy
ingentaconnect website makes use of cookies so as to keep track of data that you have filled in. I am Happy with this Find out more