The Effects of Short-Time Solution Treatment and Short-Time Aging on Mechanical Properties of Ti-6Al-4V for Orthopaedic Applications

Abdul Ajiz (1), Gunawarman Gunawarman (2), Jon Affi (3)
(1) Department of Mechanical Engineering, Andalas University, Limau Manis-Pauh, Padang, 25137, Indonesia
(2) Department of Mechanical Engineering, Andalas University, Limau Manis-Pauh, Padang, 25137, Indonesia
(3) Department of Mechanical Engineering, Andalas University, Limau Manis-Pauh, Padang, 25137, Indonesia
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How to cite (IJASEIT) :
Ajiz, Abdul, et al. “The Effects of Short-Time Solution Treatment and Short-Time Aging on Mechanical Properties of Ti-6Al-4V for Orthopaedic Applications”. International Journal on Advanced Science, Engineering and Information Technology, vol. 5, no. 4, Aug. 2015, pp. 329-34, doi:10.18517/ijaseit.5.4.556.
The Ti-6Al-4Valloy is currently utilized as structural materials in artiï¬cial hip and knee joints, bone plates and screws, and artiï¬cial dental roots. It is mainly used in implants that replace hard tissue because has a high strength, good corrosion resistance, high biocompatibility compared to other conventional metallic biomaterials such as stainless steel and Co-Cr-Moalloys.The Ti-6Al-4V alloy with low Young’s modulus equivalent  to that of the cortical  bone is a simultaneously required in order to inhibit  bone absorption.Byshort-time solution treatment and subsquent short-time aging, the mechanical properties of  Ti-6Al-4V alloy can be improvedwhile maintaining a low Young’s modulus. The result showed optimum heat treatments were solution treatment at930 oC (1203 K) for 60 sand subsquent aging at 530 oC (803 K) for 40 s; the yield strength and tensile strength improved without reduction in ductility. Their maximum improvement rates of reached 21,6% and 21,1%, respectively and the Young’s modulus reduced  with maximum rates of reached 12%.

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