激光冲击强化对镍基单晶高温合金微观组织和抗高温氧化性能的影响

李佳恒, 钱伟, 朱晶晶, 蔡杰, 花银群

Influence of Laser Shock Peening on Microstructure and Oxidation Performance of Nickel-based Single Crystal Superalloy

LI Jiaheng, QIAN Wei, ZHU Jingjing, CAI Jie, HUA Yinqun

表2 UT、LSP-1和LSP-3镍基单晶高温合金试样氧化150 h后的表面成分 (atomic fraction / %)

Table 2 Surface chemical compositions of UT, LSP-1 and LSP-3 nickel-based single crystal superalloy samples after 150 h oxidation

Position Ni Al Cr Co Ta O W Point 1 40.28 0.71 8.63 6.4 0.03 43.8 0.15 Point 2 16.21 25.79 7.71 5.72 0.07 44.46 0.04 Point 3 65.5 4.37 9.34 12.52 0.97 4.7 2.6 Point 4 44.51 0.22 0.94 6.45 0.06 47.74 0.08 Point 5 46.10 0.31 0.70 4.68 0.01 48.17 0.03