Development of laser cladding MCrAlY coatings: high temperature friction and wear behaviour
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URI: http://hdl.handle.net/10317/10709ISBN: 978-84-606-8904-1
DOI: 10.31428/10317/10709
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Ingeniería MecánicaPatrocinadores
The authors acknowledge the financial support of the Ministry of Science and Innovation of the Government of Spain through research project MAT2011-28492- C03 and the Generalitat Valenciana through ACOMP/2013/114 support. Professor Juan Carlos Pereira Falcón thanks the University of Carabobo for the financial support to pursue his doctoral studies at the UPV.Realizado en/con
Universidad Politécnica de CartagenaFecha de publicación
2015Editorial
Universidad Politécnica de CartagenaCita bibliográfica
Pereira Falcón, J.C.; Zambrano Carrullo, J.C.; Tobar Vidal, M.J.; Amigó Borrás, V. Development of laser cladding MCrAlY coatings: high temperature friction and wear behaviour. En: Proceedings of the VIII Iberian Conference on Tribology: Conference Proceedings. Cartagena: Universidad Politécnica de Cartagena, Servicio de Documentación, 2015. Pp. 317-324. ISBN: 978-84-606-8904-1Palabras clave
IBERTRIBFriction
Wear
MCrAlY
Laser cladding
Coating
Resumen
Temperature can have a significant effect on the extent of wear damage of metallic
components. Thermal barrier coatings with MCrAlY (where M=Ni, Co, Fe or
combinations) alloys can improve the high temperature tribological and friction wear
behaviour. In this work the dry friction and wear behaviour at room temperature and
high temperature of new developed NiCoCrAlY and CoNiCrAlY laser cladding
coatings were evaluated. Dense coatings, with good metallurgical bonding to the AISI
304 substrate was obtained by coaxial laser cladding tracks (40% overlapping), with
previously optimized laser parameters. Tribological tests were performed by sliding
wear at room temperature and 500 ºC, with an Al2O3 counterpart in ball on disk
configuration tribometer. The wear scar surface was evaluated by scanning electron
microscopy (SEM) and energy dispersive spectroscopy (EDS) microanalysis. The 3D
wear track topography was measured by inductive contact profilometer which
enabled the wear rate ...
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