2008
DOI: 10.1016/j.surfcoat.2008.05.056
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Phase formation in a Ni–50Cr HVOF coating

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Cited by 22 publications
(5 citation statements)
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“…More carbon was deposited on the coated specimens than on the uncoated specimens, and the amount deposited on the C2 specimens was larger than on the C1 specimens, as determined from surface observations as well as weight changes. This may be related to the formation of NiCr 2 O 4 spinel oxide in the microstructure of the Ni-50Cr coatings deposited by the HVOF method, as confirmed elsewhere [18]. The oxygen partial pressure in the carburization atmosphere was 3.17 Â 10 À27 atm, which is below the spinel stability level (Fig.…”
Section: Discussionsupporting
confidence: 71%
See 1 more Smart Citation
“…More carbon was deposited on the coated specimens than on the uncoated specimens, and the amount deposited on the C2 specimens was larger than on the C1 specimens, as determined from surface observations as well as weight changes. This may be related to the formation of NiCr 2 O 4 spinel oxide in the microstructure of the Ni-50Cr coatings deposited by the HVOF method, as confirmed elsewhere [18]. The oxygen partial pressure in the carburization atmosphere was 3.17 Â 10 À27 atm, which is below the spinel stability level (Fig.…”
Section: Discussionsupporting
confidence: 71%
“…12). The microstructure within the splats consisted of the fcc g-Ni matrix with bcc a-Cr precipitates as expected from the equilibrium phase diagram and previously observed after heat treatment at 650 -C in a vacuum condition [18]. …”
Section: Coatingsupporting
confidence: 67%
“…En la Figura 4 se muestra la variación del coeficiente de fricción con respecto al tiempo para los diferentes recubrimientos y procesos. Se observa que el recubrimiento realizado mediante HVOF es el que presenta la menor resistencia al desgaste que el TIG esto se debe a que en los procesos el tipo de anclaje difiere mientras que uno es mecánico el otro es por liga metalúrgica [5], respectivamente. De los recubrimientos depositados por TIG el que presenta mejor resistencia a la abrasión es el Stellite 12.…”
Section: Resultados Y Discusionesunclassified
“…Debido a las condiciones del proceso, las cuales combinan una relativamente baja temperatura de flama con un bajo tiempo de exposición [4]. Este método emplea una alta presión de un combustible (propileno, acetileno, propano o gases de hidrógeno) para producir temperaturas del gas superior a los 3,029 ºK y para generar una supersónica o hipersónica velocidad del gas, de aproximadamente 2,000 m/s, más de cinco veces la velocidad del sonido [5]. El acero grado herramienta para trabajado en frío es un material susceptible al agrietamiento y formar estructuras fuera de equilibrio lo cual es un factor crítico en este tipo de componentes.…”
Section: Introductionunclassified
“…Studies on the erosive wear behavior of Co-base coatings were carried out by various researchers [2][3][4][5][6][7][8][9][10][11][12][13]. These coatings were developed by various coating techniques.…”
Section: Introductionmentioning
confidence: 99%