Affiliation:
1. Guizhou Key Laboratory of Materials Structure and Strength College of Materials and Metallurgy Guizhou University Guiyang 550025 P. R. China
Abstract
The microstructure, texture evolution, and aging behavior of a cold‐rolled (CR) Ti–B20 alloy are investigated in this work. The results show that the microstructure of the solution‐treated (ST) Ti–B20 alloy consists of equiaxed recrystallized grains and exhibits typical {001}<110> and {001}<100> textures. After cold rolling, the initial equiaxial grains are stretched along the rolling direction (RD), which can produce typical deformation textures of γ‐fiber {111}<112> and {111}<110> textures. For the CR samples after aging treatment, small amounts of needle‐like or spherical α‐phases preferentially precipitate in the grain boundaries of deformed β grains during aging treatment; many nanosized α‐phases uniformly precipitate in the grain boundaries and inside the β grains. A high dislocation density is generated in CR samples, promoting α‐phase nucleation, increasing the volume fraction, and decreasing the α‐phase size during aging treatment.
Funder
National Natural Science Foundation of China
Innovative Research Group Project of the National Natural Science Foundation of China
Science and Technology Program of Guizhou Province
Subject
Condensed Matter Physics,General Materials Science