Novel artificial hip joint: A layer of alumina on Ti-6Al-4V alloy formed by micro-arc oxidation.
作者： Rohit Khanna , Tadashi Kokubo , Tomiharu Matsushita , Yuuji Nomura , Norihiro Nose
DOI: 10.1016/J.MSEC.2015.05.021
关键词:
摘要: In many hip replacement surgeries, monolithic alumina is used as a femoral head due to its high wear resistance. However, it is liable to fracture under load bearing operations in artificial joints. We propose a promising way to overcome this limitation by forming a dense alumina layer onto a relatively tough substrate such as Ti–6Al–4V alloy to obtain high wear resistance on a material that can sustain relatively high toughness. For this purpose, Al metal powders were deposited onto Ti–6Al–4V alloy by cold spraying in N 2 atmosphere …
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