Ti/Al比对GH984G合金长期时效过程中γ′沉淀相粗化行为及拉伸性能的影响

谭梅林, 王常帅, 郭永安, 郭建亭, 周兰章

INFLUENCE OF Ti/Al RATIOS ON γ′ COARSENING BEHAVIOR AND TENSILE PROPERTIES OF GH984G ALLOY DURING LONG-TERM THERMAL EXPOSURE

TAN Meilin, WANG Changshuai, GUO Yongan, GUO Jianting, ZHOU Lanzhang

表2 Al和Ti在γ基体中的扩散系数

Table 2 Diffusion coefficients of Al, Ti elements in γ matrix

Temperature / ℃ Al Ti 700 1.46×10-9 7.10×10-9 750 8.10×10-9 3.33×10-8 800 3.85×10-8 1.37×10-7