Design, strength prediction of Ti35NbxSnyZrzMo alloys with low elastic moduli and experimental verification on their mechanical properties

Based on the d-electron alloy design method and the average valence electron concentration theory,three kinds of metastable b-type Ti–35Nb-based alloys containing different quantities of Sn, Zr, and Mo alloying elements were designed, whose —Md = 2.45 e V and e/a = 4.24, and —Bo values = 2.869, 2.86...

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Bibliographic Details
Published in:稀有金属：英文版 2014 (6), p.657-662
Main Author: Yu Wang Shi-Juan Dai Feng Chen Xin-Quan Yu You-Fa Zhang
Format: Article
Language:English
Subjects:
alloy
alloys
d-Electron
design
Elastic
modulus
Ti–Nb
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Summary:Based on the d-electron alloy design method and the average valence electron concentration theory,three kinds of metastable b-type Ti–35Nb-based alloys containing different quantities of Sn, Zr, and Mo alloying elements were designed, whose —Md = 2.45 e V and e/a = 4.24, and —Bo values = 2.869, 2.866, and 2.860,respectively. Meanwhile, a formula for predicting the solid solution strength of Ti–Nb-based alloys was developed using JMat Pro software. The experiments show that the designed alloys are all composed of single b phase after solid solution treatment, the tensile strength of the alloys coincides well with that predicted by the formula(the relative error \4 %), and the elastic moduli decrease with —Bo values increasing. The Ti35Nb3.7Zr1.3Mo alloy has the biggest —Bo value(2.869) and the lowest elastic modulus(54 GPa) among the three designed alloys.
ISSN:1001-0521
1867-7185