Application of resonant ultrasound spectroscopy to determine elastic constants of plasma-sprayed coatings with high internal friction

Sedmák, Pavel; Seiner, Hanuš; Sedlák, Petr; Landa, Michal; Mušálek, Radek; Matějíček, Jiří

doi:10.1016/j.surfcoat.2013.06.091

Cited by 18 publications

(5 citation statements)

References 39 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…the amplitude dependence of the elastic moduli [32]), the map in Fig. 7 comprises only the results obtained by ultrasonic methods, in particular by pulse-echo [25], RUS [19,26] or by their combination [23]; therefore, all these results refer to very small straining amplitudes and high straining rates typical for ultrasound. The CS materials obviously possess a unique combination of high E OOP /E bulk ratio and very weak anisotropy.…”

Section: Rus Resultsmentioning

confidence: 99%

“…All samples were oriented so that longest and the shortest edge of the sample were always perpendicular to the spraying direction and aligned with the directions of motion of the nozzle during spraying. However, it was assumed (as usual for the sprayed materials [19,23,25,26]) that all samples exhibit transversal isotropy, i.e. that all directions perpendicular to the spraying direction are equivalent, and the elasticity of the material can be fully described by five independent elastic coefficients.…”

Section: Resonant Ultrasound Spectrocopymentioning

confidence: 99%

“…Among the sprayed metallic prepared by water-stabilized plasma (WSP) spraying. In all reported cases, the difference between the in-plane and out-of plane properties of the coatings were significant, with the values of the ratio α = E OOP /E IP between the out-of-plane Young's modulus (E OOP ) and the in-plane Young's modulus (E IP ) ranging from 0.36 (for APS [19]) to 0.87 (for WSP [23]). Here we apply this method to determine the elastic constants and the strength of anisotropy for pure copper, aluminum, titanium and nickel coatings prepared by CS.…”

mentioning

confidence: 91%

See 2 more Smart Citations

Elastic moduli and elastic anisotropy of cold sprayed metallic coatings

Seiner

Sedlák

Huang³

et al. 2016

Surface and Coatings Technology

Self Cite

View full text Add to dashboard Cite

such as plasma spraying [8,9,10], the CS process does not involve substantial heating or melting of the sprayed powders. Instead, the formation of the coating arises from a severe plastic deformation of the accelerated powder particles upon their impingement at the substrate [11,12]. Thereby, the oxidation or phase changes in the feedstock material are effectively reduced, as well as e.g. the magnitude of the secondary residual stresses arising from the thermal expansion mismatch [13]. As such, CS has recently received a lot of attention as a novel method applicable for sensitive metals and alloys that readily undergo chemical or structural changes at elevated temperatures. Among the sprayed metallic prepared by water-stabilized plasma (WSP) spraying. In all reported cases, the difference between the in-plane and out-of plane properties of the coatings were significant, with the values of the ratio α = E OOP /E IP between the out-of-plane Young's modulus (E OOP ) and the in-plane Young's modulus (E IP ) ranging from 0.36 (for APS [19]) to 0.87 (for WSP [23]). Here we apply this method to determine the elastic constants and the strength of anisotropy for pure copper, aluminum, titanium and nickel coatings prepared by CS. The main advantage of the RUS method is that it enables the determination of all independent elastic constants of an anisotropic solid from measurements of one small sample. In addition, the RUS enables also a direct assessment of the internal friction parameter of the examined material Q −1 [21], which may bring an additional information on the integrity of the sprayed material or on density and activity of defects in it [24].

show abstract

Section: Rus Resultsmentioning

confidence: 99%

Section: Resonant Ultrasound Spectrocopymentioning

confidence: 99%

mentioning

confidence: 91%

See 1 more Smart Citation

Elastic moduli and elastic anisotropy of cold sprayed metallic coatings

Seiner

Sedlák

Huang³

et al. 2016

Surface and Coatings Technology

Self Cite

View full text Add to dashboard Cite

show abstract

“…4b), we choose this resolution to train all subsequent models. [61][62][63][64][65][66] , which provides a good benchmark for testing our fingerprint-based model. We examined the model using a measured spectrum collected from a steel cylinder (see Table S2 for the sample dimension and weight).…”

Section: Examining Modulated Fingerprint Based Nn Structures For Accu...mentioning

confidence: 99%

A modulated fingerprint assisted machine learning method for retrieving elastic moduli from resonant ultrasound spectroscopy

Liu

Zhao

et al. 2023

Sci Rep

View full text Add to dashboard Cite

We used deep-learning-based models to automatically obtain elastic moduli from resonant ultrasound spectroscopy (RUS) spectra, which conventionally require user intervention of published analysis codes. By strategically converting theoretical RUS spectra into their modulated fingerprints and using them as a dataset to train neural network models, we obtained models that successfully predicted both elastic moduli from theoretical test spectra of an isotropic material and from a measured steel RUS spectrum with up to 9.6% missing resonances. We further trained modulated fingerprint-based models to resolve RUS spectra from yttrium–aluminum-garnet (YAG) ceramic samples with three elastic moduli. The resulting models were capable of retrieving all three elastic moduli from spectra with a maximum of 26% missing frequencies. In summary, our modulated fingerprint method is an efficient tool to transform raw spectroscopy data and train neural network models with high accuracy and resistance to spectra distortion.

show abstract

“…In RUS, a swept frequency acoustic signal is applied to the sample through a piezoelectric transducer, while the mechanical response is recorded using a second transducer in contact with the sample. This technique can be applied to a wide variety of sample types and geometries with very little material needed and provides the highest accuracy for determination of elastic constants, with typical accuracies of 0.5–1.0% for compressional moduli and 0.2% for shear moduli from fits with a 0.1–0.2% RMS error [ Migliori and Sarrao , ; Pandey and Schreuer , ; Liu et al ., ; Sedmák et al, ]. Additionally, RUS is capable of measurements over a significantly large temperature and pressure range which is important for simulating inner‐earth conditions and elucidating effects of changing environment on the mechanical properties of materials.…”

Section: Introductionmentioning

confidence: 99%

Resonant Ultrasound Spectroscopy studies of Berea sandstone at high temperature

et al. 2016

View full text Add to dashboard Cite

Resonant Ultrasound Spectroscopy was used to determine the elastic moduli of Berea sandstone from room temperature to 478 K. Sandstone is a common component of oil reservoirs, and the temperature range was chosen to be representative of typical downhole conditions, down to about 8 km. In agreement with previous works, Berea sandstone was found to be relatively soft with a bulk modulus of approximately 6 GPa as compared to 37.5 GPa for α‐quartz at room temperature and pressure. It was found that Berea sandstone undergoes a ~17% softening in bulk modulus between room temperature and 385 K, followed by an abnormal behavior of similar stiffening between 385 K and 478 K.

show abstract

Application of resonant ultrasound spectroscopy to determine elastic constants of plasma-sprayed coatings with high internal friction

Cited by 18 publications

References 39 publications

Elastic moduli and elastic anisotropy of cold sprayed metallic coatings

Elastic moduli and elastic anisotropy of cold sprayed metallic coatings

A modulated fingerprint assisted machine learning method for retrieving elastic moduli from resonant ultrasound spectroscopy

Resonant Ultrasound Spectroscopy studies of Berea sandstone at high temperature

Contact Info

Product

Resources

About