CORROSION BEHAVIOR AND WETTING PROPERTIES OF CAST TNZT ALLOYS

IF 0.6 4区 材料科学 Q4 MATERIALS SCIENCE, MULTIDISCIPLINARY
R. Ciocoiu, R. Turcu, Nicolae Văleanu, Gabriel Dobri, A. Banu, I. Carstoc, Dura Horatiu
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引用次数: 0

Abstract

Five experimental alloys Ti-9Nb-8Zr-xTa-2Ag (x = 0, 5, 10, 15) were obtained and analyzed in the as-cast condition. The microstructure, corrosion behavior and surface free energy on the samples polished and corroded in artificial saliva were investigated. The microstructure is comprised of a mixture of α and β phase and the proportion of β phase increases with tantalum content increase. At 10 % Ta a drastic change in the microstructure was observed that severely altered the corrosion behavior, as the corrosion rate increased significantly beyond this point. The alloys are hydrophilic and corrosion tends to increase the surface free energy of the alloy with 15 % Ta that was mostly affected by the corrosion. The tantalum content increase affects directly the microstructure and indirectly the corrosion and surface wetting properties of the experimental alloys. Tantalum content increase affects directly the microstructure and indirectly the corrosion and surface wetting properties of the experimental alloys.
铸造TNZT合金的腐蚀行为和润湿性能
在铸态条件下获得了5种实验合金Ti-9Nb-8Zr-xTa-2Ag (x = 0、5、10、15)并进行了分析。研究了经人工唾液抛光和腐蚀后样品的微观结构、腐蚀行为和表面自由能。显微组织由α相和β相混合组成,β相的比例随着钽含量的增加而增加。在10% Ta时,随着腐蚀速率显著增加,观察到微观结构的剧烈变化严重改变了腐蚀行为。合金具有亲水性,当Ta含量为15%时,合金的表面自由能增加,受腐蚀影响最大。钽含量的增加直接影响合金的显微组织,间接影响合金的腐蚀和表面润湿性能。钽含量的增加直接影响合金的显微组织,间接影响合金的腐蚀和表面润湿性能。
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来源期刊
Materiali in tehnologije
Materiali in tehnologije 工程技术-材料科学:综合
CiteScore
1.30
自引率
0.00%
发文量
73
审稿时长
4-8 weeks
期刊介绍: The journal MATERIALI IN TEHNOLOGIJE/MATERIALS AND TECHNOLOGY is a scientific journal, devoted to original papers and review scientific papers concerned with the areas of fundamental and applied science and technology. Topics of particular interest include metallic materials, inorganic materials, polymers, vacuum technique and lately nanomaterials.
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