研究了钛板和铜板的弹性各向异性在升温时的变化。实验表明:经过退火的TA2钛板,在升温到600℃的过程中,各向异性图象的基本形状不变,而一次各向异性系数单凋增大,返回室温后,各向异性图象复原;未经完全退火的铜板,在600℃升温试验后,各向异性图象发生了较大的变化,二次各向异性显著增强。 The change of elastic anisotropy of titanium plate and copper plate at elevated temperature was studied. Experiments show that: the annealed TA2 titanium plate in the process of raising the temperature to 600 ℃, the basic shape of the anisotropic image unchanged, and the primary anisotropy coefficient singlet increases, returning to room temperature, the anisotropic image After annealing at 600 ℃, the anisotropic image has been greatly changed, and the secondary anisotropy has been significantly enhanced.