微重力条件下<strong>Gd-Co-Ti</strong>合金原位粒子复合凝固组织的形成

微重力条件下Gd-Co-Ti合金原位粒子复合凝固组织的形成

孙昊, 江鸿翔, 赵九洲, 张丽丽, 何杰

Formation of In Situ Particle Composite Solidification Microstructure of Gd-Co-Ti Alloy Under Microgravity Conditions

SUN Hao, JIANG Hongxiang, ZHAO Jiuzhou, ZHANG Lili, HE Jie

图11 Gd-2%Co-2%Ti合金样品心部富TiCo相液滴的最大形核率(I_DMax)和凝固后富TiCo相粒子N_D随形核阶段冷却速率( ${\dot{T}}_{n u c}$ )的变化

Fig.11 Maximum nucleation rate (I_DMax) of the TiCo-rich droplets and N_D of the TiCo-rich particles at the center region of the Gd-2%Co-2%Ti alloy samples as a function of the local cooling rate ( ${\dot{T}}_{n u c}$ ) during the nucleation period