CrNbTiVAl x 难熔高熵合金的组织、力学性能和高温氧化行为

朱满, 张成, 许军锋, 坚增运, 惠增哲

Microstructure, Mechanical Properties, and High-Temperature Oxidation Behaviors of the CrNbTiVAl x Refractory High-Entropy Alloys

ZHU Man, ZHANG Cheng, XU Junfeng, JIAN Zengyun, XI Zengzhe

表3 CrNbTiVAl x 难熔高熵合金900 ℃高温氧化的抛物线速率常数

Table 3 Parabolic rate constants (kp1, kp2) of the CrNbTiVAl x RHEAs after oxidation at 900 oC

Alloy t / h kp1 / (mg2·cm-4·s-1) R2 t / h kp2 / (mg2·cm-4·s-1) R2 Al0.25 0-40 1.98 × 10-1 0.94 40-100 2.90 × 10-2 0.97 Al0.5 0-40 1.43 × 10-1 0.96 40-100 5.31 × 10-2 0.97 Al0.75 0-40 8.81 × 10-2 0.93 40-100 7.23 × 10-2 0.98 Al1.0 0-40 5.71 ×10-2 0.94 40-100 8.91 × 10-2 0.99