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Characterizing the micro-impact fatigue behavior of APS and HVOF-sprayed ceramic coatings

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Characterizing the micro-impact fatigue behavior of APS and HVOF-sprayed ceramic coatings. / Kiilakoski, J.; Langlade, Cécile; Koivuluoto, H.; Vuoristo, P.

In: Surface and Coatings Technology, Vol. 371, 15.08.2019, p. 245-254.

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Kiilakoski, J. ; Langlade, Cécile ; Koivuluoto, H. ; Vuoristo, P. / Characterizing the micro-impact fatigue behavior of APS and HVOF-sprayed ceramic coatings. In: Surface and Coatings Technology. 2019 ; Vol. 371. pp. 245-254.

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@article{577fd8207da641b5926da1d0e26b92bf,
title = "Characterizing the micro-impact fatigue behavior of APS and HVOF-sprayed ceramic coatings",
abstract = "The fatigue life of thermally sprayed Al2O3- and Cr2O3-based coatings has been studied under low-energy (0.7–5 mJ) impact conditions. A threshold impact energy and amount of repetitions the coatings can endure with said energy before catastrophic failure was obtained. The catastrophic failure was determined to occur when the fracture mode of the coating switched from brittle cone cracking to quasi-plastic radial cracking. The results are examined relative to the microstructural features along with other properties of the coatings - hardness and cavitation resistance. The experiment provided a new approach for a straightforward comparison of the micro-scale impact fatigue life of thermally sprayed coatings unachievable with previous methods.",
keywords = "Ceramic coating, Characterization, Fracture, Impact test, Surface fatigue, Thermal spray",
author = "J. Kiilakoski and C{\'e}cile Langlade and H. Koivuluoto and P. Vuoristo",
year = "2019",
month = "8",
day = "15",
doi = "10.1016/j.surfcoat.2018.10.097",
language = "English",
volume = "371",
pages = "245--254",
journal = "Surface & Coatings Technology",
issn = "0257-8972",
publisher = "Elsevier",

}

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TY - JOUR

T1 - Characterizing the micro-impact fatigue behavior of APS and HVOF-sprayed ceramic coatings

AU - Kiilakoski, J.

AU - Langlade, Cécile

AU - Koivuluoto, H.

AU - Vuoristo, P.

PY - 2019/8/15

Y1 - 2019/8/15

N2 - The fatigue life of thermally sprayed Al2O3- and Cr2O3-based coatings has been studied under low-energy (0.7–5 mJ) impact conditions. A threshold impact energy and amount of repetitions the coatings can endure with said energy before catastrophic failure was obtained. The catastrophic failure was determined to occur when the fracture mode of the coating switched from brittle cone cracking to quasi-plastic radial cracking. The results are examined relative to the microstructural features along with other properties of the coatings - hardness and cavitation resistance. The experiment provided a new approach for a straightforward comparison of the micro-scale impact fatigue life of thermally sprayed coatings unachievable with previous methods.

AB - The fatigue life of thermally sprayed Al2O3- and Cr2O3-based coatings has been studied under low-energy (0.7–5 mJ) impact conditions. A threshold impact energy and amount of repetitions the coatings can endure with said energy before catastrophic failure was obtained. The catastrophic failure was determined to occur when the fracture mode of the coating switched from brittle cone cracking to quasi-plastic radial cracking. The results are examined relative to the microstructural features along with other properties of the coatings - hardness and cavitation resistance. The experiment provided a new approach for a straightforward comparison of the micro-scale impact fatigue life of thermally sprayed coatings unachievable with previous methods.

KW - Ceramic coating

KW - Characterization

KW - Fracture

KW - Impact test

KW - Surface fatigue

KW - Thermal spray

U2 - 10.1016/j.surfcoat.2018.10.097

DO - 10.1016/j.surfcoat.2018.10.097

M3 - Article

VL - 371

SP - 245

EP - 254

JO - Surface & Coatings Technology

JF - Surface & Coatings Technology

SN - 0257-8972

ER -