TY - GEN
T1 - Difference of wear behavior between Ti-29Nb-13Ta-4.6Zr alloy and Ti-6Al-4V ELI alloy for biomedical applications
AU - Nakai, Masaaki
AU - Niinomi, Mitsuo
AU - Hieda, Junko
AU - Cho, Ken
AU - Lee, Yoon Seok
PY - 2014
Y1 - 2014
N2 - A biomedical β-type titanium, Ti-29Nb-13Ta-4.6Zr alloy (TNTZ), exhibits good biological and mechanical biocompatibilities due to containing non-toxic elements and lower Young's modulus than that of a conventional (α+β)-type titanium alloy, Ti-6A1-4V ELI alloy (Ti64). One of the expected applications for TNTZ is spinal fixation applications. However, screws and rods are contacted each other in this kind of application, while titanium alloys generally exhibit poor wear resistance. Therefore, the wear characteristics of TNTZ and Ti64 were investigated in this study. Balls and discs made of TNTZ and Ti64 were prepared for a ball-on-disc wear test. As the results of microstructural analysis, it was found that the morphologies of wear tracks and debris of TNTZ are different from those of Ti64 because different wear mechanism is predominant in each alloy.
AB - A biomedical β-type titanium, Ti-29Nb-13Ta-4.6Zr alloy (TNTZ), exhibits good biological and mechanical biocompatibilities due to containing non-toxic elements and lower Young's modulus than that of a conventional (α+β)-type titanium alloy, Ti-6A1-4V ELI alloy (Ti64). One of the expected applications for TNTZ is spinal fixation applications. However, screws and rods are contacted each other in this kind of application, while titanium alloys generally exhibit poor wear resistance. Therefore, the wear characteristics of TNTZ and Ti64 were investigated in this study. Balls and discs made of TNTZ and Ti64 were prepared for a ball-on-disc wear test. As the results of microstructural analysis, it was found that the morphologies of wear tracks and debris of TNTZ are different from those of Ti64 because different wear mechanism is predominant in each alloy.
KW - Metal-to-metal
KW - Titanium alloy
KW - Wear
UR - http://www.scopus.com/inward/record.url?scp=84899741308&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84899741308&partnerID=8YFLogxK
U2 - 10.1002/9781118889879.ch29
DO - 10.1002/9781118889879.ch29
M3 - Conference contribution
AN - SCOPUS:84899741308
SN - 9781118889725
T3 - TMS Annual Meeting
SP - 217
EP - 220
BT - TMS 2014 - 143rd Annual Meeting and Exhibition, Supplemental Proceedings
PB - Minerals, Metals and Materials Society
T2 - 143rd Annual Meeting and Exhibition, TMS 2014
Y2 - 16 February 2014 through 20 February 2014
ER -