Mechanical properties of surface nitrided titanium for abrasion resistant implant materials
Mechanical properties of surface nitrided titanium for abrasion resistant implant materials
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DOI：
10.2320/matertrans.43.3043
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发表时间：
2002-12-01
影响因子：
1.2
通讯作者：
Kawasaki, T
中科院分区：
文献类型：
--
作者：
Tamura, Y;Yokoyama, A;Kawasaki, T
为了验证表面氮化钛在牙种植体基台、人工关节等耐磨种植材料中的应用，采用维氏硬度试验对表面氮化钛的力学性能进行了评价。马氏划痕试验和超声波清洗机磨损试验。厚度为2 μ m的氮化层的维氏硬度为1300，是纯钛的10倍左右。马氏划痕试验表明，氮化层与基体钛具有较高的结合强度。使用超声波清洗机进行的磨损测试显示，划痕深度和宽度非常小，具有极高的耐磨性。结果表明，在临床条件下，表面氮化钛具有足够的耐磨性。
In order to verify its application for abrasion-resistant implant materials such as abutment in dental implants and artificial joints, mechanical properties of surface nitrided titanium were evaluated by three different tests, the Vickers hardness test. Martens scratch test and ultrasonic scaler abrasion test. The Vickers hardness of a nitrided layer of 2 mum in the thickness was 1300, about ten times higher than that of pure titanium. The Martens scratch test showed high bonding strength for the nitrided layer with matrix titanium. The abrasion test using an ultrasonic scaler showed very small scratch depth and width, demonstrating extremely high abrasion resistance. The results show that a surface-nitrided titanium has sufficient abrasion resistance if it is used under clinical conditions.