铜钛、钴钛和镍钛体系：腐蚀与显微硬度

Cu-Ti, Co-Ti and Ni-Ti systems: corrosion and microhardness.

作者信息

Chern Lin J H, Moser J B, Taira M, Greener E H

机构信息

Department of Basic Science, Northwestern University, Chicago, Illinois.

出版信息

J Oral Rehabil. 1990 Jul;17(4):383-93. doi: 10.1111/j.1365-2842.1990.tb00023.x.

DOI:10.1111/j.1365-2842.1990.tb00023.x

PMID:2213334

Abstract

Titanium alloys of 10 wt%-72 wt% Cu, 10 wt%-80 wt% Co and 20 wt%-84 wt% Ni were investigated. Ingots were fabricated in a vacuum/argon tungsten arc furnace. The surfaces of the alloys were examined by optical microscopy and SEM/EDS, and the Knoop hardness values of the alloys were measured. The corrosion resistance of the alloys was determined by a potentiodynamic polarization technique in buffered Ringer's solution. When a threshold composition of 30 wt% alloy was reached, a large decrease in corrosion resistance was found to occur. Knoop hardness measurements showed that similar hardness values of approximately 300 KHN can be obtained in all systems with lower alloy content. These values are similar to those obtained with a commercial dental titanium alloy.

摘要

对含10 wt%-72 wt%铜、10 wt%-80 wt%钴和20 wt%-84 wt%镍的钛合金进行了研究。在真空/氩气钨极电弧炉中制备铸锭。通过光学显微镜和扫描电子显微镜/能谱仪（SEM/EDS）对合金表面进行检查，并测量合金的努氏硬度值。采用动电位极化技术在缓冲林格氏溶液中测定合金的耐腐蚀性。当合金的阈值成分达到30 wt%时，发现耐腐蚀性大幅下降。努氏硬度测量表明，在所有合金含量较低的体系中均可获得约300 KHN的相似硬度值。这些值与商用牙科钛合金所获得的值相似。