Wear properties of Ti-6Al-4V/Ti-29Nb-13Ta-4.6Zr combination for spinal implants

Yoon Seok Lee, Mitsuo Niinomi, Masaaki Nakai, Junko Hieda, Ken Cho

研究成果: Conference contribution

2 被引用数 (Scopus)

抄録

The wear mechanisms of a conventional titanium alloy, Ti-6Al-4V extra-low interstitial (Ti64), and a new titanium alloy, Ti-29Nb-13Ta-4.6Zr alloy (TNTZ) were studied to investigate the wear properties of a Ti64/TNTZ combination for spinal fixation devices. Balls and discs made of Ti64 and TNTZ were prepared to be used as wear-test specimens. Frictional wear tests of Ti64 and TNTZ discs were carried out against Ti64 and TNTZ balls in air using a ball-on-disc frictional wear testing system. The wear mechanisms were investigated by analysis of worn surfaces and wear debris using scanning electron microscopy. Volume losses of the TNTZ discs were found to be larger than those of the Ti64 discs, regardless of mating ball. Furthermore, the morphologies of wear tracks and debris were found to be different between TNTZ and Ti64 discs. It is considered that the wear mechanism for a Ti64 disc is oxidative wear, whereas that for a TNTZ disc is delamination wear, regardless of mating ball material.

本文言語English
ホスト出版物のタイトルTHERMEC 2013 Supplement
出版社Trans Tech Publications
ページ424-428
ページ数5
ISBN(印刷版)9783038350743
DOI
出版ステータスPublished - 2014
イベント8th International Conference on Processing and Manufacturing of Advanced Materials: Processing, Fabrication, Properties, Applications, THERMEC 2013 - Las Vegas, NV, United States
継続期間: 2013 12月 22013 12月 6

出版物シリーズ

名前Advanced Materials Research
922
ISSN(印刷版)1022-6680

Other

Other8th International Conference on Processing and Manufacturing of Advanced Materials: Processing, Fabrication, Properties, Applications, THERMEC 2013
国/地域United States
CityLas Vegas, NV
Period13/12/213/12/6

ASJC Scopus subject areas

  • 工学(全般)

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