固溶温度对Ti-10Mo-6Zr-4Sn-3Nb合金力学性能及显微组织的影响

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文章编号：2096-2983（2025）03-0063-07

关键词：Ti-10Mo-6Zr-4Sn-3Nb合金；固溶；α"马氏体相；大角度晶界中图分类号：TG166.5 文献标志码：A

Abstract： A novel type of metastable β -Ti alloy， Ti-10Mo-6Zr-4Sn-3Nb，has been developed， which could be used as orthodontic brackets and guide wires. The efects of solution temperature （790-830∘C） （2 on mechanical properties and microstructural organization of the alloy were investigated. The results show that after solid-solution，the grain size of the alloy increases compared to that of the one before solid-solution. A trace amount of a′′ martensite phase exits in the alloy，which has little effect on the mechanical properties. The solid-solution strengthening efect and the presence of large angle grain boundaries efectively hinder the movement of dislocations， thereby improving the strength of the alloy. After solid-solution at 820∘C ， the alloy exhibits the optimal mechanical properties， the yield strength is up to 1020MPa ， and the elongation after fracture is 19.7%

Keywords： Ti-10Mo-6Zr-4Sn-3Nb alloy; solid-solution; an martensite phase; high angle grain boundary

钛及钛合金因其卓越的力学性能和优异的生物相容性，被广泛应用于医疗器械领域。（剩余9027字）