Titanium and titanium alloys due to their high strength, low density,
biology
The advantages of good compatibility and other advantages have great application value in the field of additive manufacturing. However, due to the high cooling rates inherent in additive manufacturing, the as-deposited microstructure of near-alpha and alpha+beta titanium alloys is typically a martensitic alpha’ microstructure.Although the martensitic structure has high strength, it has poor elongation and thermal stability, so it usually needs to be carried out after preparation.
post-processing
to stabilize the structure and properties of the alloy.
For the preparation of TA15 titanium alloy by additive manufacturing, researchers from the University of Science and Technology Beijing and other units proposed that three-stage heat treatment should be used to control the three-modal structure of the alloy, so as to obtain excellent comprehensive mechanical properties. A related paper titled “Achieving an ideal combination of strength and plasticity in additive manufactured Ti
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