Improvement of thermal shock resistance for thermal barrier coating on aluminum alloy with various electroless interlayers

• Published in: Surface & coatings technology Vol. 206; no. 1; pp. 29 - 36
• Main Authors: Gu, Lijian, Chen, Xiaolong, Fan, Xizhi, Liu, Yangjia, Zou, Binglin, Wang, Ying, Cao, Xueqiang
• Format: Journal Article
• Language: English
• Published: Amsterdam Elsevier B.V 15.10.2011; Elsevier
• Subjects: Aluminum alloy; Aluminum base alloys; Applied sciences; Coatings; Cross-disciplinary physics: materials science; rheology; Deposition; Electroless plating; Exact sciences and technology; Interlayer; Interlayers; Intermetallics; Materials science; Metallic coatings; Metals. Metallurgy; Nickel; Nickel base alloys; Nonmetallic coatings; Physics; Plasma spray; Production techniques; Shock resistance; Surface treatment; Surface treatments; Thermal barrier coating; Thermal shock; Thermal shock test; Interlayer; Electroless plating; Thermal shock test; Plasma spray; Thermal barrier coating; Aluminum alloy; Interfacial layer; Plasma; Hot spraying; Surface treatments; Non metal coating; Metal coating; Thermal shock resistance; Thermal shock; Chemical deposition; Thermal barriers; Plasma arc spraying

NiCoCrAlY/8YSZ coating was firstly directly deposited on aluminum alloy 5A06 by atmospheric plasma spray to make it applicable to short-time high temperature condition. The failure after thermal shock test was mainly due to the stress caused by thermal expansion mismatch between the bond coat and th...