激光重熔YSZ热障涂层950 ℃的热腐蚀行为

虞礼嘉,梁文萍,林浩,缪强,黄彪子,崔世宇

Evaluation of Hot Corrosion Behavior of Laser As-remelted YSZ Thermal Barrier Coatings at 950 ℃

Lijia YU,Wenping LIANG,Hao LIN,Qiang MIAO,Biaozi HUANG,Shiyu CUI

表1 等离子喷涂热障涂层工艺参数

Table 1 Plasma spraying parameters

Process parameter Bonding layer Ceramic layer Thickness / μm 90~100 180~200 Voltage / V 65 75 Current / A 500 510 Spray distance / mm 110 110 Spray speed / mm·s-1 600 600 ArPowder flow / L·min-1 65 50 H2Powder flow / L·min-1 6 6 N2Powder flow / L·min-1 15 15 Power speed / g·min-1 50 15