3D相场模拟研究Ti-6Al-4V合金片层组织形貌的影响因素

张瑶, 齐敏, 孙佳, 吴婷, 马英杰, 王皞, 杨锐

3D Phase Field Simulation of Factors Influencing the Microstructure Morphology of Lamellar Ti-6Al-4V Alloy

ZHANG Yao, QI Min, SUN Jia, WU Ting, MA Yingjie, WANG Hao, YANG Rui

图3 不同时刻相同z-x切面上(y = 252.85Δx)片层α侧枝形貌演化，及Ti-4211合金的微观组织[10]

Fig.3 Evolution of α side branch morphologies on the same z-x section (y = 252.85Δx, unit length Δx = 5 × 10-8 m) at different moments (The dashed box represents the growth status of the same layer at different time) (a) t = 100 s (b) t = 200 s (c) t = 300 s (d) t = 400 s (e) microstructure of Ti-4211 heat-treated at 1050oC for 1 h, furnace cooled to 830oC and annealed for 1 h, and water-quenched from 830oC to room temperature[10]