Thermal fatigue resistance of plasma sprayed yttria-stabilised zirconia onto borided hot work tool steel, bonded with a NiCrAlY coating: Experiments and modelling
نویسندگان
چکیده
منابع مشابه
Cyclic fatigue resistance of yttria-stabilized tetragonal zirconia polycrystals with hot isostatic press processing.
This study investigated the influence of surface roughness and cyclic loading on fatigue resistance in Y-TZP subjected to hot isostatic pressing (HIP). Fifty Y-TZP cylinders 3.0 mm in diameter were divided into Group A (polished by centerless method; TZP-CP) or Group B (blasted and acid-etched: TZP-SB150E). Twenty five cp-titanium cylinders (Ti-SB150E) were used as a control. Static and cyclic ...
متن کاملLaser-assisted plasma coating at atmospheric pressure: production of yttria-stabilized zirconia thermal barriers
A laser-assisted plasma-coating technique at atmospheric pressure (LAPCAP) has been investigated. The electron temperature, electron density and gas temperature of the atmospheric-pressure plasma have been measured using optical emission spectroscopy (OES). LAPCAP utilizes laser ablation of 3 mol% yttria-stabilized zirconia into an atmospheric helium/nitrogen plasma to deposit thermal barrier c...
متن کاملFormation of a hybrid coating by the use of plasma nitriding and hard chromium electroplating on the surface of H11 hot work tool steel
Abstract: Formation of a hybrid coating by the use of plasma nitriding and hard chromium electroplating on the surface of H11 hot work tool steel was investigated. Firstly, specimens were plasma nitrided at a temperature of 550 °C for 5 hours in an atmosphere of 25 vol. % H2: 75 vol. % N2. Secondly, electroplating was carried out in a solution containing 250 g/L chromic acid and 2.5 g/L sulp...
متن کاملThermal Fatigue Behavior of Air-Plasma Sprayed Thermal Barrier Coating with Bond Coat Species in Cyclic Thermal Exposure
The effects of the bond coat species on the delamination or fracture behavior in thermal barrier coatings (TBCs) was investigated using the yclic thermal fatigue and thermal-shock tests. The interface microstructures of each TBC showed a good condition without cracking or delamination after flame thermal fatigue (FTF) for 1429 cycles. The TBC with the bond coat prepared by the air-plasma spray ...
متن کاملSurface oxygen exchange between yttria-stabilised zirconia and a low-temperature oxygen rf-plasma
Isotope Exchange/Depth Profiling (IEDP) using Secondary Ion Mass Spectrometry (SIMS) has been used to determine the oxygen tracer diffusion and surface exchange coefficients of (100) oriented 9.5 mol% yttria stabilised zirconia single crystals. Exchange experiments performed with molecular oxygen are compared with the exchange using an oxygen plasma. The surface exchange coefficient for specime...
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ژورنال
عنوان ژورنال: Surface and Coatings Technology
سال: 2011
ISSN: 0257-8972
DOI: 10.1016/j.surfcoat.2010.11.054