Elastic moduli of cast Ti-Au, Ti-Ag, and Ti-Cu alloys
Elastic moduli of cast Ti-Au, Ti-Ag, and Ti-Cu alloys
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DOI：
10.1016/j.dental.2005.05.015
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发表时间：
2006-07-01
期刊：
影响因子：
5
通讯作者：
Okuno, Osamu
中科院分区：
文献类型：
--
作者：
Kikuchi, Masafumi;Takahashi, Masatoshi;Okuno, Osamu
目标.本研究探讨了钛与金、银或铜合金化对合金弹性性能的影响。在氩弧熔化炉中，用金、银或铜的四种浓度（5、10、20和30质量%）制造一系列二元钛合金。用超声脉冲法测定了合金铸件的杨氏模量和泊松比。每种合金的密度预先通过阿基米德原理测量。使用单因素方差分析和Scheffe检验分析结果。结果。Ti-Au、Ti-Ag和Ti-Cu合金的密度随着合金元素浓度的增加而单调增加。当金或银的浓度增加到20%时，杨氏模量显著降低，随后数值增加。随着铜浓度的增加，杨氏模量单调增加。所有Ti-Cu合金的杨氏模量均显著高于纯钛。所有实验合金的密度实际上与合金相无关，白色合金的杨氏模量和泊松比是相关的。当合金相为单相时，金或银的加入使钛的杨氏模量略有降低。Ti-Cu合金的杨氏模量的增加可能是由于金属间化合物Ti 2Cu的析出。铜原来是一个温和的加强，获得了钛的杨氏模量高达20%的铜浓度为30质量%。(c)2005年，牙科材料学院。由爱思唯尔有限公司出版。保留所有权利。
Objectives. This study investigated the effect of alloying titanium with gold, silver, or copper on the elastic properties of the alloys.Methods. A series of binary titanium alloys was made with four concentrations of gold, silver, or copper (5, 10, 20, and 30 mass%) in an argon-arc melting furnace. The Young's moduli and Poisson's ratios of the alloy castings were determined with an ultrasonic-pulse method. The density of each alloy was previously measured by the Archimedes' principle. Results were analyzed using one-way ANOVA and the Scheffe's test.Results. The densities of Ti-Au, Ti-Ag, and Ti-Cu alloys monotonically increased as the concentration of alloying elements increased. As the concentration of gold or silver increased to 20%, the Young's modulus significantly decreased, followed by a subsequent increase in value. As the concentration of copper increased, the Young's modulus monotonically increased. The Young's moduli of all the Ti-Cu alloys were significantly higher than that of the titanium.Significance. The density of all the experimental alloys was virtually independent of the alloy phases, white the Young's moduli and Poisson's ratios of the alloys were dependent. The addition of gold or silver slightly reduced the Young's modulus of the titanium when the alloy phase was single a. The increase in the Young's modulus of the Ti-Cu alloys is probably due to the precipitation of intermetallic compound Ti2Cu. Copper turned out to be a moderate stiffener that gains a Young's modulus of titanium up to 20% at the copper concentration of 30 mass%. (c) 2005 Academy of Dental Materials. Published by Elsevier Ltd. All rights reserved.