The development of NiTi-based shape memory alloys (SMAs) for some medical applications has been limited by releasing Ni element into the organic tissue. In this study, Ni47Ti50Sn₃-wire (at.%) SMA was produced using the arc-melting technique, and the alloy was subjected to non-isothermal processes. Some characteristics of the alloys, such as oxidation behavior, corrosivity, and in vitro study in simulated body fluid and physiological solution at body temperature, were investigated. The corrosion rate of the as-casted alloy was lower than the equiatomic-NiTi alloy found in the literature. The estimated ICP-MS results showed that the release of alloying constituents into the solutions is in accordance with the standards.

中文翻译：

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线形 NITISN 形状记忆合金的体外研究、腐蚀和热氧化行为

由于将 Ni 元素释放到有机组织中，限制了用于某些医疗应用的 NiTi 基形状记忆合金 (SMA) 的开发。本研究中，倪47钛50Sn ₃线 (at.%) SMA 是使用电弧熔化技术生产的，并且合金经过非等温工艺。合金的一些特性，如氧化行为、腐蚀性和体外研究了模拟体液和体温下的生理溶液。铸态合金的腐蚀速率低于文献中发现的等原子镍钛合金。估计的 ICP-MS 结果表明合金成分释放到溶液中符合标准。