B、Zr复合添加对IN718高温合金流动性的影响

介子奇, 刘鼎元, $\boxed{\hbox{张军}}$

Effect of Combined Addition of B and Zr on the Fluidity of IN718 Superalloy

JIE Ziqi, LIU Dingyuan, $\boxed{\hbox{Zhang Jun}}$

表4 合金在不同凝固阶段的枝晶生长速率 (s-1)

Table 4 Dendrite growth rates of the alloys at the various stages

Alloy Initial stage Stable stage Last stage 1 2.96 × 10-3 6.12 × 10-2 4.34 × 10-4 2 1.42 × 10-3 5.85 × 10-2 2.08 × 10-4 3 4.71 × 10-4 5.57 × 10-2 6.99 × 10-4 4 4.83 × 10-4 4.72 × 10-2 3.85 × 10-5