热处理工艺对Al0.5CoCrFeNi高熵合金在不同介质下腐蚀行为及力学性能的影响

段敬民, 董勇, 缪东美, 杨玉婧, 毛凌波, 章争荣

Corrosion Behavior in Different Media and Mechanical Properties of Al0.5CoCrFeNi High-entropy Alloy After Heat Treatment

DUAN Jingmin, DONG Yong, MIAO Dongmei, YANG Yujing, MAO Lingbo, ZHANG Zhengrong

表6 铸态和轧制后不同温度热处理态合金在3.5%NaCl溶液中阻抗参数

Table 6 Fitting parameters of EIS of as-cast alloy and as-rolled alloys with heat treatment at different temperatures in 3.5%NaCl solution

Alloys RsΩ·cm2 R1kΩ·cm2 R2kΩ·cm2 RpkΩ·cm2 CPE110-5 Ω-1·cm-2·s n CPE210-5 Ω-1·cm-2·s n n1 n2 Σ λ2 As-cast 20.20 31.62 282.36 313.98 2.24 0.56 0.94 0.60 1.44 × 10-4 800 ℃ 20.56 30.31 258.69 289.00 2.66 0.22 0.93 0.42 2.01 × 10-4 1000 ℃ 26.91 208.74 184.84 393.58 2.27 0.73 0.03 0.57 2.28 × 10-4 1200 ℃ 26.00 212.59 255.14 467.73 1.96 0.49 0.94 0.63 2.18 × 10-4