Microstructure and oxidation resistance of cryomilled NiCrAlY coating by laser induction hybrid rapid cladding

• Published in: Surface & coatings technology Vol. 258; pp. 943 - 949
• Main Authors: Zhou, Shengfeng, Xiong, Zheng, Dai, Xiaoqin, Liu, Jia, Zhang, Tianyou, Wang, Chunxia
• Format: Journal Article
• Language: English
• Published: Amsterdam Elsevier B.V 15.11.2014; Elsevier
• Subjects: Applied sciences; Chromium; Cladding; Coating; Columnar structure; Corrosion; Corrosion environments; Cross-disciplinary physics: materials science; rheology; Cryomilling; Dendritic structure; Exact sciences and technology; Laser induction hybrid rapid cladding (LIHRC); Lasers; Materials science; Metallic coatings; Metals. Metallurgy; Nickel; NiCrAlY coating; Oxidation resistance; Physics; Production techniques; Surface treatment; Surface treatments; NiCrAlY coating; Oxidation resistance; Cryomilling; Laser induction hybrid rapid cladding (LIHRC); Corrosion resistance; Nickel base alloys; Metal coating; Lasers; Plating; Surface treatments; Oxidation; Microstructure

To further improve the oxidation resistance of NiCrAlY bond coat, the primary NiCrAlY powder processed by mechanical cryomilling was deposited on Ni-based superalloy by laser induction hybrid rapid cladding (LIHRC). The mechanical cryomilling induced the formation of γ′-Ni3Al and the dissolution of...