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Ti-6Al-4V合金组织与性能关系的研究表明,其拉伸塑性、疲劳强度(高周和低周疲劳)、断裂韧性、蠕变抗力及其他性能不仅取决于它属于针状还是等轴组织,还取决于初生α百分比、原始β晶粒尺寸、β转变组织形态及其他条件。在这些条件中,β转变组织形态是一个特别重要的因素。对于某一性能来说,在一种条件下针状组织优于含等轴α组织,而在另一条件下前者又可能近似或劣于后者。因此,笼统地比较这两类组织是不确切的。综合性能的比较表明,在所有本文述及的组织中,网篮状组织最佳和并列式组织最差。
Studies on the relationship between microstructure and properties of Ti-6Al-4V alloy show that the tensile ductility, fatigue strength (high and low cycle fatigue), fracture toughness, creep resistance and other properties depend not only on whether it is acicular or equiaxed , But also on the percentage of primary α, the original β-grain size, the morphology of β-transmutation, and other conditions. Among these conditions, β-transforming tissue morphology is a particularly important factor. For one property, acicular tissue is superior to equiaxed tissue in one condition, and in the other, the former may be similar or inferior to the latter. Therefore, a general comparison of these two types of organizations is not clear. A comparison of overall performance shows that among all the organizations covered in this article, the best and the worst side-by-side organizations are the worst.