3D打印NiTi形状记忆合金在模拟不同口腔环境中电化学腐蚀行为研究
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刘明, 王杰, 朱春晖, 张延晓
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Electrochemical Corrosion Behavior of 3D-printed NiTi Shape Memory Alloy in a Simulated Oral Environment
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LIU Ming, WANG Jie, ZHU Chunhui, ZHANG Yanxiao
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表2 3D-NiTi合金在不同人工唾液中浸泡不同时间后的EIS拟合参数
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Table 2 Fitting result of EIS curves of 3D-NiTi alloy immersed in various artificial saliva for different time
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| Corrosion environment | t / h | Rs / Ω·cm2 | Qf | Rf / kΩ·cm2 | Qdl | Rct / kΩ·cm2 |
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Y0 Ω-1·cm-2·s n | n | Y0 Ω-1·cm-2·s n | n |
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| AS | 0.5 | 50.3 | 6.1×10-5 | 1.00 | 34.2 | 4.3×10-5 | 0.92 | 573 | | 24 | 49.2 | 6.0×10-5 | 1.00 | 65.3 | 4.4×10-5 | 0.88 | 748 | | 168 | 44.3 | 5.7×10-5 | 0.97 | 82.3 | 3.0×10-5 | 0.90 | 894 | | AS+Coke | 0.5 | 33.3 | 14.5×10-5 | 0.84 | 1.6 | 4.4×10-5 | 0.91 | 270 | | 24 | 17.5 | 12.6×10-5 | 0.98 | 1.3 | 4.2×10-5 | 0.82 | 300 | | 168 | 16.5 | 9.4×10-5 | 0.61 | 0.6 | 2.2×10-5 | 0.92 | 279 | | AS+1% NaF | 0.5 | 10.7 | 47.3×10-5 | 0.60 | 0.07 | 17.8×10-5 | 0.90 | 0.2 | | 24 | 7.2 | 34.4×10-5 | 0.74 | 0.08 | 12.1×10-5 | 1.00 | 3.5 | | 168 | 6.5 | 20.4×10-5 | 0.79 | 0.09 | 11.4×10-5 | 0.96 | 6.2 |
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