A high performance NiCoCrAlY bond coat manufactured using laser powder deposition

Lirong Luo, Xiao Shan, Zhonghua Zou, Chunshan Zhao, Xin Wang, Aiping Zhang, Xiaofeng Zhao, Fangwei Guo, Ping Xiao

    Research output: Contribution to journalArticlepeer-review

    403 Downloads (Pure)


    A high performance NiCoCrAlY bond coat with dense dendritic microstructure was fabricated using laser powder deposition (LPD) technique. The thermally grown oxides (TGO) formed on the coating deposited by laser powder deposition is predominantly alumina instead of the mix oxides usually formed on the coatings prepared by air plasma spray and high velocity air fuel. Isothermal oxidation tests performed at 1150. °C reveal that the LPD bond coat shows significantly better spallation resistance and lower TGO growth rate. The superior spallation resistance of the TGO is further discussed in relation to the unique microstructure of the LPD bond coat.

    Original languageEnglish
    JournalCorrosion Science
    Early online date25 Jul 2017
    Publication statusPublished - 2017


    • A. Metal coatings
    • B. Photoluminescence pizeospectroscopy
    • B. SEM
    • C. Oxidation


    Dive into the research topics of 'A high performance NiCoCrAlY bond coat manufactured using laser powder deposition'. Together they form a unique fingerprint.

    Cite this