High temperature oxidation behaviour of plasma carburised Ni based single crystal superalloy with NiCoCrAlYHf high temperature oxidation protective coatings

2014 ◽  
Vol 18 (sup4) ◽  
pp. S4-1115-S4-1120 ◽  
Author(s):  
J. Y. Zhong ◽  
R. D. Mu ◽  
L. M. He
Keyword(s):  
High Temperature ◽  
Single Crystal ◽  
High Temperature Oxidation ◽  
Protective Coatings ◽  
Oxidation Behaviour ◽  
Single Crystal Superalloy ◽  
Temperature Oxidation

High temperature oxidation and γ′ depletion in the single-crystal superalloy PWA 1484

2016 ◽  
Vol 33 (4-5) ◽  
pp. 476-488 ◽  
Author(s):  
Robert L. Amaro ◽  
Stephen D. Antolovich ◽  
Richard W. Neu ◽  
Preet M. Singh
Keyword(s):  
High Temperature ◽  
Single Crystal ◽  
High Temperature Oxidation ◽  
Single Crystal Superalloy ◽  
Temperature Oxidation

scholarly journals HIGH-TEMPERATURE OXIDATION BEHAVIOR OF AN N5 NANOCRYSTALLINE COATING DEPOSITED BY ESD ON A NI-BASED SINGLE-CRYSTAL SUPERALLOY

2021 ◽  
Vol 55 (5) ◽  
Author(s):  
Rongyan Wang ◽  
Quan Liu ◽  
Meng Wang ◽  
Xudong Lu ◽  
Cean Guo ◽  
...  
Keyword(s):  
High Temperature ◽  
Single Crystal ◽  
High Temperature Oxidation ◽  
Isothermal Oxidation ◽  
Single Crystal Superalloy ◽  
Electrospark Deposition ◽  
Columnar Crystal ◽  
Temperature Oxidation ◽  
Nanocrystalline Coating ◽  
High Temperature Oxidation Behavior

An N5 nanocrystalline coating was prepared on a Ni-based single-crystal superalloy by electrospark deposition. The morphologies, chemical composition, and phase constitution of the coating were analyzed by scanning electron microscopy (SEM), energy-dispersive spectrometry (EDS) and X-ray diffraction (XRD), respectively. The high-temperature oxidation resistance of the substrate and coating at 1100℃ was tested in a static isothermal oxidation experiment. The results show that the electrospark deposition coating with columnar crystal structure is composed of nanocrystalline; there is no elemental interdiffusion between the substrate and the coating, which effectively avoids decreasing the mechanical properties of the substrate alloy due to the interdiffusion. Migration and aggregation of a reactive element, Ta, in the nanocrystalline coating substantially improves oxide film adhesion

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