Corrosion property of TiNi shape memory alloys coated with tantalum

摘要

TiNi intermetallic is a promising biomaterial due to its unique shape memory effect and superelasticity [1]. It has been widely exploited for various applications, such as orthodontic arch wire, guildwire and stem [2]. However, as the detection of very small implantable devices or tools is very difficult, it is often more desirable that the materials are made radiopaque.