| 王坤,乔广艳,何美凤.固溶温度对Ti-10Mo-6Zr-4Sn-3Nb合金力学性能及显微组织的影响[J].有色金属材料与工程,2025,46(3):63-69. |
| 固溶温度对Ti-10Mo-6Zr-4Sn-3Nb合金力学性能及显微组织的影响 |
| Effect of solid-solution temperature on the mechanical properties and microstructure of Ti-10Mo-6Zr-4Sn-3Nb alloy |
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| DOI：10.13258/j.cnki.nmme.20241228001 |
| 中文关键词: Ti-10Mo-6Zr-4Sn-3Nb合金 固溶 α"马氏体相 大角度晶界 |
| 英文关键词:Ti-10Mo-6Zr-4Sn-3Nb alloy solid-solution α" martensite phase high angle grain boundary |
| 基金项目:国家自然科学基金资助项目(52371070) |
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| 中文摘要: |
| 开发一种新型亚稳态β型钛合金Ti-10Mo-6Zr-4Sn-3Nb，可用作正畸支架与导管引导线等。研究了固溶温度（790～830 ℃）对Ti-10Mo-6Zr-4Sn-3Nb合金的力学性能及微观组织结构的影响。结果表明：固溶后，合金的晶粒尺寸相较于固溶前的有所增大；微量的α''马氏体相存在于合金中，对合金的力学性能影响很小；固溶强化效应和大角度晶界的存在有效阻碍了位错的移动，从而提高了合金的强度；经过820 ℃固溶后，合金展现出最佳的力学性能，其屈服强度为1 020 MPa，伸长率为19.7%。 |
| 英文摘要: |
| 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 effects of solution temperature (790-830 °C) 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 α'' martensite phase exits in the alloy, which has little effect on the mechanical properties. The solid-solution strengthening effect and the presence of large angle grain boundaries effectively 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 1020 MPa, and the elongation after fracture is 19.7%. |
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