Study on microstructure and impact properties of solid solution TC6 titanium alloy
Using TC6 titanium alloy as the experimental material,different temperatures were set to perform solid solution treatment on the alloy.The microstructure and impact properties of the solid solution TC6 titanium alloy were studied.The re-sults showed that the microstructure and morphology of the alloy were affected by changes in the solid solution temperature.In-creasing the solid solution temperature helped dissolve the primary alpha phase and homogenize the alloy.When the alloy was subjected to single-phase temperature solid solution treatment,the primary alpha phase completely disappeared and was replaced by the precipitation of more small needle-like alpha phases.As the solid solution temperature increases,the impact performance of the alloy continuously decreases.After solution treatment at lower temperatures,the microstructure of the impact fracture sur-face of the alloy is mainly characterized by a large number of dimples.When the solid solution temperature increases,it can be observed that the number of dimples in the fracture surface decreases,and a certain number of tearing ridges begin to appear.The impact fracture morphology is mainly rock-like,with only a small number of small-sized dimples distributed on the fracture sur-face.
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