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4 CrNbTiVAl x 难熔高熵合金900 ℃氧化100 h后不同区域(图7)的EDS结果 (atomic fraction / %)

Table 4 EDS results in different regions in Fig.7 of the CrNbTiVAl x RHEAs after oxidation at 900 oC for 100 h

Alloy Spot Identified phase Cr Nb Ti V Al O Al0.25 1 (CrNbTiVAl)O2 10.05 11.37 10.13 04.38 02.28 61.79 2 VO x 03.61 03.09 04.71 16.38 01.27 70.94 3 Al2O3 04.05 00.58 00.37 01.25 33.61 60.14 Al0.5 4 (CrNbTiVAl)O2 09.15 9.60 11.35 03.64 03.12 63.14 5 Al2O3 04.35 0.06 00.43 00.23 34.98 59.95 Al0.75 6 VO x 03.35 2.87 04.08 15.50 01.39 72.81 7 (CrNbTiVAl)O2 07.33 8.94 09.84 03.16 04.53 66.20 8 Al2O3 03.39 0.61 00.95 01.85 36.02 57.18 Al1.0 9 (CrNbTiVAl)O2 15.11 15.22 16.96 03.45 02.63 46.63 10 Al2O3 03.65 00.00 00.07 00.62 33.31 62.35