Tribological behavior of a heat-treated cobalt-based alloy

Y. Bedolla-Gil, M. A.L. Hernandez-Rodriguez*

*Autor correspondiente de este trabajo

Producción científicarevisión exhaustiva

21 Citas (Scopus)


The present study reviews the tribological behavior of a Co-Cr-Mo alloy regarding to microstructural changes caused by solution and aged heat treatments. The influence of microstructure on wear resistance was assessed in a pin-on-disk configuration. It was found that after a long solution heat treatment of 6 h at 1200 C, most of the carbides were dissolved into the matrix, and coarse grain size was obtained. Solution treatment for 1 h presented fine grains and globular carbides along the matrix. Aging at 850 C resulted in a quantity of phase transformation which was different from austenite face cubic centered to martensite hexagonal close packed (HCP); 35% of HCP was reached during 8 h of treatment and 60% for 15 h. As-cast condition and 6-h solution heat treatment exhibited the greatest wear loss, while 1-h solution treatment and samples containing HCP phase showed a threefold lower wear.

Idioma originalEnglish
Páginas (desde-hasta)541-547
Número de páginas7
PublicaciónJournal of Materials Engineering and Performance
EstadoPublished - feb 2013
Publicado de forma externa

All Science Journal Classification (ASJC) codes

  • Ciencia de los materiales (todo)
  • Mecánica de materiales
  • Ingeniería mecánica


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