| NiTi形状记忆合金表面改性的研究进展 |
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| 引用本文： | 李丹,高岩.NiTi形状记忆合金表面改性的研究进展[J].材料导报,2011,25(9):91-94,98. |
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| 作者姓名： | 李丹 高岩 |
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| 作者单位： | 华南理工大学材料科学与工程学院; |
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| 基金项目： | 广东省科技厅社会发展支持项目(2010B031100004) |
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| 摘 要： | 近等原子比的NiTi合金以其优异的特性在临床医学得到广泛应用,但是由于Ni离子溶出引致的潜在生物毒性以及无生物活性,抑制了NiTi合金在生物医用领域的进一步发展。为了改善上述缺陷,对NiTi合金进行表面处理成为当前国内外NiTi合金研究的热点。从不同的改性工艺出发,全面阐述了近年来国内外对致密态和多孔态NiTi合金进行表面改性的研究进展,对各种方法可能出现的问题进行了分析,指出现有的各种表面改性方法不能有效实现对多孔NiTi合金内部孔隙进行改性,并针对这一症结提出了采用原位氮化法对多孔NiTi合金进行改性的可行性。
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| 关 键 词： | NiTi形状记忆合金 致密态 多孔态 表面改性 原位氮化 |
Progress on Surface Modification of NiTi Shape Memory Alloys |
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| LI Dan,GAO Yan.Progress on Surface Modification of NiTi Shape Memory Alloys[J].Materials Review,2011,25(9):91-94,98. |
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| Authors: | LI Dan GAO Yan |
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| Affiliation: | LI Dan,GAO Yan(School of Materials Science and Engineering,South China University of Technology,Guangzhou 510640) |
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| Abstract: | A near-equiatomic NiTi alloy has been widely applied in medical clinic as a biomedical material for its excellent characteristics,but its further application as biomedical materials has been suppressed by its non-bioactive and potential toxicity caused by the release of Ni ion.Surface modification for NiTi alloy is an effective approach to improve the above-mentioned problems,and has become a research hotspot recently.The present progress of surface modification methods for NiTi alloy both in the dense and ... |
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| Keywords: | NiTi shape memory alloys dense state porous state surface modification in-sintering nitriding |
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