Design, strength prediction of Ti35NbxSnyZrzMo alloys with low elastic moduli and experimental verification on their mechanical properties
来源期刊：Rare Metals2014年第6期
论文作者：Yu Wang Shi-Juan Dai Feng Chen Xin-Quan Yu You-Fa Zhang
文章页码：657 - 662
摘 要：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.
Yu Wang，Shi-Juan Dai，Feng Chen，Xin-Quan Yu，You-Fa Zhang
Jiangsu Key Laboratory of Advanced Metallic Materials,Southeast University
摘 要：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.
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