摘要
对TA2工业纯钛进行2道次等径弯曲通道变形(ECAP),对变形后试样进行不同温度及不同保温时间的退火,并分别测量了显微硬度,并分析了400℃退火1、2、4、8 h试样横截面的显微硬度分布。结果表明:经过ECAP变形后,材料硬度增加显著;退火后,随着退火温度的升高,硬度逐渐降低;保温时间越长,硬度缓慢降低;600℃退火8 h后试样的硬度为1592 MPa,与初始工业纯钛硬度基本相同。另外,随着保温时间的增加,试样横截面硬度分布趋于均匀。
Microhardness of the commercial purity titanium TA2 which deformed by equal channel angular pressing （ ECAP） for 2 Passes and annealed at different temperatures for different time were measured, and the microhardness distribution on cross-section of the samples which annealed at 400 ℃ for 1, 2, 4 and 8 h were analyzed, respectively. The results show that after ECAP deformation, material hardness increases significantly;after annealing, the microhardness decreases with annealing temperature and time increasing. When annealed at 600℃for 8 h, the microhardness value of the sample reaches 1592 MPa, which is close to the initial microhardness. Additionally, it is shown that good homogeneity would be achieved with the annealing time increasing.
出处
《金属热处理》
CAS
CSCD
北大核心
2016年第9期145-148,共4页
Heat Treatment of Metals
