【作者】 姚草根； 贾中华； 吕宏军； 陈道勇； 何开民； 卢焰； 贾新朝；

【Author】 Yao Caogen Jia Zhonghua Lv Hongjun Chen Daoyong He Kaimin Lu Yan Jia Xinchao (Aerospace Research Institute of Materials and Processing Technology,Beijing 100076,China)

【机构】 航天材料与工艺研究所；

【摘要】 采用料浆烧结法,研制出了镍基高温合金热结构铝化物抗氧化涂层,并对涂层进行了性能测试以及微观分析。结果表明,1200℃下涂层寿命大于10h,涂层抗热震性能良好；涂层与基体之间形成一层扩散层,保证了涂层的结合强度；在高温大气环境下,涂层表面生成 Al₂O₃,因而具有良好的抗氧化性能。更多还原

【Abstract】 A aluminium compound oxidation resistant coating of Ni-based superalloy heat structure has been studied.It is indi- cated that the natural life of the coating is over 10 hours at 1200℃.The coating has good resistance to thermal shock.A dif- fused layer is formed between the coating and the base material.This ensures that the coating has high combine strength.Al₂O₃ is formed on the surface layer of the coating at high temperature in air.So the coating has good oxidation resistance.更多还原