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利用光学显微镜、扫描电镜和X射线衍射仪研究Ti-27Nb-8Zr(质量分数,%)医用钛合金固溶后在不同时效温度下组织的变化规律,重点讨论不同显微组织对合金弹性模量和强度的影响。结果表明,固溶处理后,合金组织由β+α“两相构成,具有相对低的弹性模量和强度;时效后,组织中包含β、α、ω三相,弹性模量和强度显著升高,随着时效温度的升高,组织长大,弹性模量和强度降低。
The microstructure of Ti-27Nb-8Zr (mass fraction) titanium alloy after solution treatment at different aging temperatures was studied by light microscopy, scanning electron microscopy and X-ray diffraction. The effects of different microstructures on the elastic modulus And the impact of strength. The results show that the microstructure of the alloy is composed of β + α ”phase after solution treatment, and has relatively low elastic modulus and strength. After aging, the alloy contains β, α and ω phases, and the elastic modulus and strength are significant Rise, with aging temperature, tissue growth, elastic modulus and strength decreased.