预氧化对Co-Al-W基高温合金高温氧化和热腐蚀行为的影响

高博,王磊,宋秀,刘杨,杨舒宇,千叶晶彦

Effect of Pre-Oxidation on High Temperature Oxidation and Corrosion Behavior of Co-Al-W-Based Superalloy

Bo GAO,Lei WANG,Xiu SONG,Yang LIU,Shuyu YANG,Akihiko CHIBA

表3 Co-Al-W基高温合金的Al2O3层厚度

Table 3 Mean Al2O3 scale thicknesses of Co-Al-W-based superalloy

Treatment Primary stage 1000 ℃ oxidation for 198 h NPreO 0 1.78±0.34 900-PreO 0.38±0.19 1.70±0.36 950-PreO 0.89±0.26 1.88±0.28 1000-LPreO 1.80±0.41 -