Multiple Solution and Aging Treatment Technology Improves Microstructures and Properties of Ti53 Alloy

Abstract

The effect of multiple solution and aging treatment on microstructures and room-mechanical properties of Ti-53 alloy is studied by OM, SEM and universal material testing machine. The results show that the quantity of secondary α lamella, hardness, strength, and plasticity of Ti-53 alloy decrease after the peak value with the cycling times of multiple solution and aging treatment increasing. In the process of double solid solution aging treatment, the numerical values of room-mechanical properties reached the highest level. Multiple solution and aging treatment modulates morphology effectively, which can make martensite lamellas with different Berlese’s vectors merge or decompose. Therefore, the excellent match of strength and plasticity can be obtained.