Effects of different solution and aging processes on microstructure and tensile properties of TA10 titanium alloy
TA10 titanium alloy was studied by implementing different solution and aging processes.The mi-crostructure and tensile properties of TA10 titanium alloy under different solution and aging processes were investi-gated by means of optical microscope,scanning electron microscope and room temperature tensile test.It is found that when the solution temperature is in the two-phase region,the microstructure of the alloy is mainly composed of primary α phase and fine α'phase.At this time,the strength of the alloy is low and the plasticity is high.After aging treatment,the α'phase disappears and the secondary α phase precipitates.The strength of the alloy increases,the plasticity decreases slightly,and the surface of the tensile fracture shows equiaxed dimple characteristics.When the solution temperature is in the single-phase region,the primary α phase disappears and the obvious grain boundary α appears.At this time,the microstructure is mainly composed of coarse β grains.It is found that the plasticity of the alloy after solution treatment at single-phase temperature is poor whether or not aging treatment has been carried out.The microstructure of the tensile fracture of the alloy is rock-like morphology,and the char-acteristics of torn ridge are obvious.
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