HVOF-Deposited WCCoCr as Replacement for Hard Cr in Landing Gear Actuators

Agüero, A. and Camon, F. and Garcia de Blas Villanueva, Francisco Javier and Hoyo, J.C. del and Muelas, R. and Santaballa, A. and Ulargui, S. and Valles, P. (2011). HVOF-Deposited WCCoCr as Replacement for Hard Cr in Landing Gear Actuators. "Journal of Thermal Spray Technology", v. 20 (n. 6); pp. 1292-1309. ISSN 1059-9630. https://doi.org/10.1007/s11666-011-9686-1.

Description

Title: HVOF-Deposited WCCoCr as Replacement for Hard Cr in Landing Gear Actuators
Author/s:
  • Agüero, A.
  • Camon, F.
  • Garcia de Blas Villanueva, Francisco Javier
  • Hoyo, J.C. del
  • Muelas, R.
  • Santaballa, A.
  • Ulargui, S.
  • Valles, P.
Item Type: Article
Título de Revista/Publicación: Journal of Thermal Spray Technology
Date: December 2011
ISSN: 1059-9630
Volume: 20
Subjects:
Freetext Keywords: adhesion – coatings – fatigue – hard Cr replacement – HVOF – landing gear – liquid immersion – microstructure – morphology – particle size – salt fog corrosion – WCCoCr – wear resistance
Faculty: E.T.S.I. Aeronáuticos (UPM)
Department: Otro
Creative Commons Licenses: Recognition - No derivative works - Non commercial

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Abstract

WCCoCr coatings deposited by HVOF can replace hard Cr on landing gear components. Powders with two different WC particle sizes (micro and nano-) and geometries have been employed to study the effects on the coating’s properties. Moreover, coatings produced employing two sets of parameters resulting in high and low flame temperatures have been evaluated. Minor differences in microstructure and morphology were observed for the two powders employing the same spraying parameters, but the nano-sized powder exhibited a higher spraying efficiency. However, more significant microstructural changes result when the low- and high-energy spray parameters are used. Moreover, results of various tests which include adhesion, wear, salt fog corrosion resistance, liquid immersion, and axial fatigue strength, indicate that the coatings produced with high-energy flame are similar in behavior. On the other hand, the nanostructured low-energy flame coating exhibited a significantly lower salt fog corrosion resistance

More information

Item ID: 9820
DC Identifier: http://oa.upm.es/9820/
OAI Identifier: oai:oa.upm.es:9820
DOI: 10.1007/s11666-011-9686-1
Official URL: http://www.springerlink.com/content/u031n86387621625/
Deposited by: Memoria Investigacion
Deposited on: 12 Dec 2011 09:19
Last Modified: 20 Apr 2016 18:06
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