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1 BSE-EDS分析铸态和轧制后不同温度热处理态合金不同区域的化学组成 (atomic fraction / %)

Table 1 EDS determined chemical compositions of the marked regions in Fig.3 for as-cast alloy and as-rolled alloys with heat treatment at different temperatures

Alloys with heat treatment Regions Al Co Cr Fe Ni As-cast A 14.06 19.22 21.63 17.61 27.48 B 11.46 21.13 21.98 21.06 24.37 800 ℃ A 31.77 16.33 7.20 11.40 33.30 B 8.12 23.04 23.54 23.82 21.48 C 18.34 19.86 14.97 18.07 28.76 1000 ℃ A 32.78 15.51 6.49 10.66 34.56 B 6.28 24.01 25.10 25.01 19.60 C 22.73 18.76 15.15 16.85 26.51 1200 ℃ A 30.61 16.59 7.32 11.77 33.71 B 8.53 23.33 23.24 22.79 22.11 C 28.59 11.04 13.82 17.24 29.31