Paper Title:
Effect of Cu and Co Additions on Corrosion Behavior of NiTi Alloys for Orthodontic Applications
  Abstract

The aim of this study is to investigate effect of Cu and Co additions on corrosion behavior of NiTi shape memory alloys for orthodontic application. Ni50.6Ti49.4, Ti49Ni46Cu5 and Ti50Ni47Co3 (at%) alloys were prepared. The specimens were melted by arc-melting furnace and homogenized at 800oC for 3.6 ks. Transformation temperatures were analyzed by differential scanning calorimeter (DSC). The corrosion behavior was assessed electrochemically in artificial saliva (pH 5.35) at 37oC. Open circuit potential (OCP) was monitored 3.6 ks followed by potentiodynamic techniques. The results show that all of specimens revealed transformation temperature close to oral temperature which may be utilized as orthodontic wire. Surface roughness was measured in order to ensure that there is no significant difference which might affect corrosion resistance. It is seen that by adding Co and Cu into NiTi alloys, the corrosion potential (Ecorr) and pitting corrosion potential (Ebreak) increase resulting in lower corrosion rate. Conceivably, Co and Cu additions considerable affect the corrosion behavior of NiTi alloys by improving corrosion resistance in artificial saliva.

  Info
Periodical
Advanced Materials Research (Volumes 378-379)
Chapter
Chapter 6: New Materials and Composites Materials
Edited by
Brendan Gan, Yu Gan and Y. Yu
Pages
650-654
DOI
10.4028/www.scientific.net/AMR.378-379.650
Citation
A. Phukaoluan, A. Khantachawana, S. Dechkunakorn, N. Anuwongnukroh, P. Santiwong, J. Kajornchaiyakul, "Effect of Cu and Co Additions on Corrosion Behavior of NiTi Alloys for Orthodontic Applications", Advanced Materials Research, Vols. 378-379, pp. 650-654, 2012
Online since
October 2011
Export
Price
$32.00
Share

In order to see related information, you need to Login.

In order to see related information, you need to Login.

Authors: Masahiko Ikeda, S. Komatsu, Yuichiro Nakamura, Y. Kobayashi
Abstract:Using Ti-40mass%Ta-0, -4, -8 and -12mass%Sn alloys, the effect of Sn addition on phase constitution in the solution treated and quenched...
1273
Authors: Wei Zhang, Kunio Arai, J. Qiang, C. Qin, F. Jia, Akihisa Inoue
Abstract:The addition of Ti and Zr to Ni-Ta binary alloys is effective for the increase in stabilization of supercooled liquid and glass-forming...
1421
Authors: Victor I. Kolomytsev, M. Babanly, Alexandre Pasko, A.P. Shpak, Tetjana Sych, P. Ochin, Philippe Vermaut, Richard Portier, Eduard Cesari, D. Rafaja
Abstract:A series of multielementary AB-type shape memory alloys, quaternary (Ti,Hf)50(Ni,Cu)50 and quinary (Ti,Zr,Hf)50(Ni,Cu)50, have been produced...
113
Authors: Gang Wang, Wen Ru Zhao, Yan Dong Liu, Chun Yan Wang, Yan Dong Wang, Liang Zuo
Abstract:In recent years, there has been an increasing interest in magnetic shape memory alloys (MSMAs) due to their unique ability to produce very...
2188
Authors: Yong Hua Li, Xin Jun Liang, Tao Fan
Abstract:Biomedical titanium alloys can be used for replacement and repair surgeries of human hard tissues. In recent years, the new b type titanium...
2009