Development of Titanium Alloys with Low Elastic Modulus and High Corrosion Resistance designed on the Basis of Quantum Chemistry Theory

基于量子化学理论设计的低弹性模量高耐蚀钛合金的开发

• 批准号: 16591960
• 负责人: SHIRAISHI Takanobu
• 金额: $ 2.3万
• 依托单位: Nagasaki University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (C)
• 财政年份: 2004
• 资助国家: 日本
• 起止时间: 2004 至 2006
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-16591960/
• 关键词: Titanium alloy; Elastic modulus; Young's modulus; Poisson's ratio; Quantum chemistry; ジルコニウム; ビッカース硬さ; 耐食性; 電気化学; インプラント; 生体材料; 弾性係数; 超音波パルス法; 量子化学理論

To develop new Ti alloys with low elastic modulus and high corrosion resistance, Ti-Zr binary alloys with Zr content of 0, 20, 40, 60, 70, 80, 100 at.% were prepared and their density, Young's modulus, Poisson's ratio and Vickers microhardness were investigated. Primary experimental results were as follows.1. DensityThe density vs. composition curve for the Ti-Zr binary alloys slightly deviated positively from the straight baseline connecting the two points on both ends for pure Ti and pure Zr. It is noted that the degree of deviation from the straight baseline was slightly greater in the Ti-rich region compared to the Zr-rich region.2. HardnessHardness of the as-cast pure Ti and Zr were 157 VHN and 196 VHN, respectively. The alloying addition of 20 at.% Zr to Ti drastically increased hardness, indicating that a great deal of solid solution hardening occurred. Further addition of Zr further increased Vickers hardness up to about 370 VHN at Ti-60 at.% Zr composition. Similar solid solution hardening was observed when Zr was alloyed with Ti. However, magnitude of increase in hardness was much weaker in the Zr-rich region compared to the Ti-rich region.3. Young's modulus and Poisson's ratioYoung's modulus of pure Ti was significantly higher than that of pure Zr. By alloying Ti with Zr, Young's modulus markedly decreased and the minimum Young's modulus of about 89 GPa was obtained at the Ti-60 at.% Zr composition. On the other hand, Poisson's ratio of pure Ti was significantly lower than that of pure Zr. By alloying Ti with Zr, Poisson's ratio markedly increased and the maximum Poisson's ratio of about 0.343 was obtained at the Ti-60 at.% Zr composition.

为了开发低弹性模量、高耐蚀性的新型钛合金，研究了Zr含量为0、20、40、60、70、80、100 at.%的Ti-Zr二元合金的密度、杨氏模量、泊松比和维氏显微硬度。主要实验结果如下：1.密度Ti-Zr二元合金的密度-成分曲线稍微正偏离纯Ti和纯Zr两端两点的直线基线。值得注意的是，与富Zr区域相比，富Ti区域与直线基线的偏离程度略大。铸态纯Ti和Zr的硬度分别为157 VHN和196 VHN。合金化添加量为20 at.% Zr到Ti急剧增加硬度，表明发生了大量的固溶硬化。Zr的进一步添加进一步增加了维氏硬度，在Ti-60原子%时高达约370 VHN Zr成分。当Zr与Ti合金化时，观察到类似的固溶硬化。但是，富Zr区的硬度增加幅度远小于富Ti区.纯钛的杨氏模量显著高于纯锆。Ti与Zr合金化后，杨氏模量显著降低，在Ti-60 at.%时，杨氏模量最小，约为89 GPa Zr成分。另一方面，纯钛的泊松比明显低于纯锆。Ti与Zr合金化后，材料的泊松比显著增大，在Ti-60 at.%时，材料的泊松比达到最大值，约为0.343 Zr成分。

项目成果

effect of cold working on ordering of an equiatomic CuPt alloy

冷加工对等原子 CuPt 合金有序化的影响

• 发表时间: 2005
• 期刊: Journal of Alloys and Compounds 391
• 作者: Hisatsune K;Shiraishi T;Takuma Y;Tanaka Y;Miura E
• 通讯作者: Miura E

Variations of Colour with Alloying Elements in Pd-free Au-Pt-based High Noble Dental Alloys

无钯金铂基高贵牙科合金颜色随合金元素的变化

• 发表时间: 2006
• 期刊: Proceedings of the 4th International Conference on Gold Science, Technology and its Applications
• 作者: 津田緩子;小田展生;樽見進一;Takanobu Shiraishi et al.
• 通讯作者: Takanobu Shiraishi et al.

Castability and Mechanical Properties of Experimental Ti-Zr-Sn Alloys for Dental Application

牙科用实验 Ti-Zr-Sn 合金的铸造性能和机械性能

• 发表时间: 2005
• 期刊: The Journal of the Japanese Society for Dental Materials and Devices 24(4)
• 作者: Tsuda H.;Oda N.;Masumi S.;T.Ogata et al.
• 通讯作者: T.Ogata et al.

Effect of gold coating on interfacial reaction between dental porcelain and titanium

• DOI: 10.2320/matertrans.45.3044
• 发表时间: 2004-10-01
• 期刊: MATERIALS TRANSACTIONS
• 影响因子: 1.2
• 作者: Miura, E;Tabaru, T;Hisatsune, K
• 通讯作者: Hisatsune, K

Optical Properties of Pd-free Au-Pt-based High Noble Alloys, A chapter in a book "Trends in Materials Science Research"

无钯金铂基高贵合金的光学性能，《材料科学研究趋势》一书中的一章

• 发表时间: 2006
• 作者: Hisashi Koshino;Toshihiro Hirai;Tsutomu Ishijima;Hidehito Takasaki;鱒見進一;Takanobu Shiraishi
• 通讯作者: Takanobu Shiraishi