Thermally induced delamination and buckling of a ceramic coating with temperature-dependent material properties from porous substrate at high temperatures

Cui, Y.J.; Li, J. E.; Wang, B. L.; Wang, K. F.

doi:10.1007/s00707-020-02624-8

Cited by 4 publications

(2 citation statements)

References 38 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…They find their use in gas turbine engines, power generation systems, and even marine propulsions where insulation is required from the hot steam [ 7 ]. They can efficiently operate at an elevated temperature beyond the fusion point of base metals/alloys and give them broad practicality in extreme conditions [ 8 ]. Moreover, they are usually required to last for a prolonged period under repetitive and extreme usage.…”

Section: Introductionmentioning

confidence: 99%

Performance Comparison of Advanced Ceramic Cladding Approaches via Solid-State and Traditional Welding Processes: A Review

et al. 2020

View full text Add to dashboard Cite

Ceramic coating has applications in enhancing the material’s properties and can significantly improve the material’s usability in varied temperatures and adverse operating conditions and widen its applicability scope. It can add to the various properties such as wear resistance, high-temperature degradation, thermal conductivity, material toughness, tensile strength, corrosion resistance, friction reduction, electric insulation, and the lifespan of the material. Various techniques have been suggested and implemented to achieve ceramic coating on a metal surface, each having their respective advantages and disadvantages. Hence, they can be distinguished for their applicability in different places. The bonding mechanism of metal particle systems has been researched to date, but there are still certain uncertainties regarding the ceramic particle system because of the dissimilarities in properties. The paper aims to profoundly investigate the various coating technologies available through welding processes and do a comparative study through numerical analysis and experimental results on the properties of coatings obtained from two broad categories of welding—solid-state and traditional/fusion processes. It was found that the solid-state processes in which the temperature remained well below the fusion temperatures overcame the mismatch in property and produced reliable coatings with enhanced mechanical properties.

show abstract

Section: Introductionmentioning

confidence: 99%

Performance Comparison of Advanced Ceramic Cladding Approaches via Solid-State and Traditional Welding Processes: A Review

et al. 2020

View full text Add to dashboard Cite

show abstract

“…Therefore, it was believed that the crack could have resulted from thermal strain due to the difference in thermal expansion between the coating and substrate either during coating deposition or cooling after testing in SHS; the presence of interfacial contamination from grit blasting, {69}, could be the point of crack initiation. The crack may also be the result of the coating having a potentially low bending strength, localized variation in mechanical properties due to differences in coating composition and microstructure, residual stresses created at the time of coating application [Waki & Kobayashi, 2009], thermal shock [Nejati et al, 2015], or buckling [Cui et al, 2020]. The lack of a tell-tale oxide layer at the coating/substrate interface indicates that Thermally Grown Oxides (TGO), the formation of an oxide layer at the coating/substrate interface due to high temperature, was not a factor in the formation of the delamination crack [Trunova et al, 2008].…”

Section: Cs Specimens Surface Morphologymentioning

confidence: 99%

Oxidation Study of Incoloy 800H Tubes Exposed to Super-Heated Steam and Supercritical Water

Nazarali

View full text Add to dashboard Cite

Incoloy 800H, a high-nickel austenitic alloy, has great merit for use in Supercritical Water (SCW). The development of the CANada Deuterium Uranium (CANDU) nuclear Supercritical Water Reactor (SCWR) was the driving force behind this research to investigate the oxidation performance of Incoloy 800H for use as fuel cladding.The oxidation behaviour of Incoloy 800H was investigated in Super-Heated Steam (SHS) (625 o C, 0.1 MPa) for a duration of 500 hours and, again, for 1,000 hours, and in SCW (625 o C, 26.14 MPa) for 500 hours using novel tube specimens. Four specimen configurations were prepared to have a combination of Open-Ends (OE) or Closed-Ends (CE) with either a Bare Surface (BS) or a NiCrAlY Coated Surface (CS). The OE and CE specimens experienced different through-thickness stress distributions due to their testing environment, which allowed comparison and characterization of their performance with regard to oxidation and stress.Standard mass and dimension change measurements performed on the test specimens were observed to be unreliable for characterizing the relative oxidation between different test environments and specimen configurations. Detailed metallographic studies were made with the aid of optical microscopy, Scanning Electron Microscopy (SEM), Energy Dispersion Spectrometry (EDS), and X-Ray Diffraction (XRD), in addition to mass and dimensional measurements. Finite Element Analysis (FEA) was performed to determine the effect that specimen configuration and testing environment have on the stress distributions within the specimens.Testing showed that BS specimens in SHS and SCW produced sufficiently similar oxidation behaviours and oxide scales; spallation of the outer Fe-rich oxide layer was believed to have occurred. The CS specimens formed a thin and discontinuous oxide under both SHS and SCW. The CE/BS tube yielded and collapsed when exposed to SCW with iv cracks and 'folds' vulnerable to oxidation forming on the collapsed surfaces. The NiCrAlY coating provided sufficient strength to reinforce the CE/CS tube preventing its collapse in SCW conditions.From the perspective of oxidation performance, it has been determined that SHS (625 o C, 0.1 MPa) is a suitable medium for investigating the oxidation behaviour of Incoloy 800H in SCW (625 o C, 26.14 MPa) and would provide comparatively conservative results.The coating affords the tube additional protection from both oxidation and stress, providing the potential of extending the operating life of the Incoloy 800H tubes. v I am grateful for the support and expertise of

show abstract

Interfacial behavior of a thermoelectric film bonded to a graded substrate

Peng,

Li,

Huang

et al. 2023

Appl. Math. Mech.-Engl. Ed.

View full text Add to dashboard Cite

Thermally induced delamination and buckling of a ceramic coating with temperature-dependent material properties from porous substrate at high temperatures

Cited by 4 publications

References 38 publications

Performance Comparison of Advanced Ceramic Cladding Approaches via Solid-State and Traditional Welding Processes: A Review

Performance Comparison of Advanced Ceramic Cladding Approaches via Solid-State and Traditional Welding Processes: A Review

Oxidation Study of Incoloy 800H Tubes Exposed to Super-Heated Steam and Supercritical Water

Interfacial behavior of a thermoelectric film bonded to a graded substrate

Contact Info

Product

Resources

About