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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.
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 eV 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 (54GPa) among the three designed alloys.