Oxygen diffusion analysis in a new β Ti-25Ta-40Zr alloy using mechanical spectroscopy technique

被引：0

作者：

Kuroda, Pedro Akira Bazaglia ^{[1
,4
]}

da Silva, Marcos Ribeiro ^{[2
]}

Afonso, Conrado Ramos Moreira ^{[1
]}

Grandini, Carlos Roberto ^{[3
]}

机构：

[1] UFSCar Univ Fed Sao Carlos, Mat Engn Dept DEMa, BR-3565905 Sao Carlos, SP, Brazil

[2] IFSP Fed Inst Educ Sci & Technol Sao Paulo, BR-14804296 Araraquara, SP, Brazil

[3] UNESP Univ Estadual Paulista, BR-17033360 Bauru, SP, Brazil

[4] UFSCar Univ Fed Sao Carlos, Rodovia Washington Luis,km 235,SP 310, Sao Carlos, SP, Brazil

来源：

JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T | 2023年 / 27卷

基金：

巴西圣保罗研究基金会;

关键词：

Anelastic relaxation; Dynamic mechanical analysis; Oxygen diffusion; Ti-25Ta-40Zr alloy; CORROSION-RESISTANCE; TA;

D O I：

10.1016/j.jmrt.2023.11.184

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

This study primarily focuses on analyzing anelastic processes due to interstitial oxygen in the Ti-25Ta-40Zr alloy. From the structural and microstructural characterization (DRX and optical microscopy), it was detected that the Ti-25Ta-40Zr alloy is a alpha + beta type. Peaks of anelastic relaxation were visualized in the Ti-25Ta-40Zr alloy, where the peaks are thermally activated, with the shift of Qp- 1 to higher temperatures in tests performed at high frequencies. The activation energy (E), relaxation time (tau 0), and diffusivity (Do) of oxygen in the alloy were obtained E = (0.49 +/- 0.02) eV, tau 0 = (6.3 +/- 0.2) x10-19 s and D0 = (5.0 +/- 0.1) x10-3 m2/s.

引用

页码：7228 / 7232

页数：5

共 44 条

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[43] Mechanical relaxations of a (Zr77.5Ti22.5)55(Ni48Cu52)21.25Be23.75 amorphous alloy studied using dynamic mechanical analysis
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[44] A STUDY OF THE AMORPHOUS NI0.33TI0.67 AND NI0.33ZR0.67 ALLOY CATHODES FOR WATER ELECTROLYSIS USING ELECTRON-SPECTROSCOPY FOR CHEMICAL-ANALYSIS
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