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用普通显微镜和透射电镜研究了Ｔｉ６２５３（Ｔｉ－６Ｍｏ－２５Ｎｂ－３Ａｌ）合金在冷变形、冷变形＋时效、固溶、固溶时效状态的显微组织特征，并测定了该合金在时效状态下的拉伸性能。用于本研究的试样是由厚度１ｍｍ的冷轧材制取。结果表明，在冷变形的试样中观察到了位错堆积和胞状结构；冷变形和时效后，细小分散的α相从β晶内析出；在５００℃时效时强度达到１３００ＭＰａ；在固溶处理后，获得了等轴再结晶组织，并出现了穿过晶界的波浪条纹，这种波浪条纹是含有高熔点元素的β钛合金的一般特征，该现象是由于成分不均匀性引起的；固溶处理和高温时效后，从β母相的晶内和晶界析出粗大针状α相，因此，强化效果降低，强度仅达到８６３ＭＰａ。
The microstructures of Ti6253 (Ti-6Mo-25Nb-3Al) alloy during cold deformation, cold deformation, aging, solution and solution aging were studied by means of ordinary microscope and transmission electron microscope. Tensile properties. The sample used in this study was made of a cold rolled sheet with a thickness of 1 mm. The results show that the dislocation accumulation and cellular structure are observed in the cold deformed specimens. The finely dispersed α phase precipitates from the β crystal after cold deformation and aging, and the strength reaches 1300 MPa at 500 ℃ aging. After the solution treatment , An equiaxed recrystallized structure was obtained and a wavy streak passing through the grain boundary appeared. This wavy streak is a general feature of the β-titanium alloy containing a high melting point element due to the compositional inhomogeneity; After treatment and aging at high temperature, coarse acicular α-phase precipitates from the intragranular and grain boundaries of the β parent phase, so that the strengthening effect is reduced and the strength reaches only 863 MPa.