Ti-6Al-7Nb合金牙科铸件的力学性能和耐腐蚀性

Mechanical properties and corrosion resistance of Ti-6Al-7Nb alloy dental castings.

作者信息

Kobayashi E, Wang T J, Doi H, Yoneyama T, Hamanaka H

机构信息

Institute for Medical and Dental Engineering, Tokyo Medical and Dental University, Kanda-surugadai, Chiyoda-ku, Tokyo 101, Japan.

出版信息

J Mater Sci Mater Med. 1998 Oct;9(10):567-74. doi: 10.1023/a:1008909408948.

DOI:10.1023/a:1008909408948

PMID:15348689

Abstract

With the aim of applying a novel titanium alloy, Ti-6Al-7Nb, to a dental casting material, a comprehensive research work was carried out on its characteristics, such as castability, mechanical properties and corrosion resistance in the present study. As a result, Ti-6Al-7Nb alloy exhibited sufficient castability by a dental casting method for titanium alloys and enough mechanical properties for dental application. It is also showed excellent corrosion resistance through an immersion test in 1.0% lactic acid and an anodic polarization test in 0.9% NaCl solution. From these results, it is concluded that this Ti-6Al-7Nb alloy is applicable as a dental material in place of Ti-6Al-4V alloy, which includes cytotoxic vanadium.

摘要

为了将新型钛合金Ti-6Al-7Nb应用于牙科铸造材料，本研究对其铸造性能、力学性能和耐腐蚀性等特性进行了全面的研究工作。结果表明，Ti-6Al-7Nb合金通过钛合金的牙科铸造方法表现出足够的铸造性能，并且具有足够的力学性能以用于牙科应用。通过在1.0%乳酸中的浸泡试验和在0.9%氯化钠溶液中的阳极极化试验，该合金还表现出优异的耐腐蚀性。基于这些结果，可以得出结论，这种Ti-6Al-7Nb合金可作为牙科材料替代含有细胞毒性钒的Ti-6Al-4V合金。