Transactions of Nonferrous Metals Society of China The Chinese Journal of Nonferrous Metals

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Transactions of Nonferrous Metals Society of China

Vol. 25    No. 3    March 2015

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Effect of thermo-mechanical processing on microstructure and electrochemical behavior of Ti-Nb-Zr-V new metastable β titanium biomedical alloy
Mohsin Talib MOHAMMED1, Zahid A. KHAN2, M. GEETHA3

1. Department of Mechanical Engineering, Faculty of Engineering, Kufa University, Najaf 54001, Iraq;
2. Department of Mechanical Engineering, Jamia Millia Islamia, New Delhi 110025, India;
3. Centre for Biomaterials Science and Technology, VIT University, Vellore 632014, India

Abstract:The influence of thermo-mechanical processing (TMP) on the microstructure and the electrochemical behavior of new metastable β alloy Ti-20.6Nb-13.6Zr-0.5V (TNZV) was investigated. The TMP included hot working in below β transus, solution heat treatments at the same temperature and different cooling rates in addition to aging. Depending upon the TMP conditions, a wide range of microstructures with varying spatial distributions and morphologies of equiaxed/elongated α and β phases were attained, allowing for a wide range of electrochemical properties to be achieved. The corrosion behavior of the studied alloy was evaluated in a Ringer’s solution at 37 °C via open circuit potential-time and potentiodynamic polarization measurements.


Key words: titanium alloy; thermo-mechanical processing; biomedical application; microstructure; electrochemical behavior; corrosion

ISSN 1004-0609
CN 43-1238/TG

ISSN 1003-6326
CN 43-1239/TG

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