Coeficiente de dilatación térmica de la fase LPSO

Gerardo Garcés; Guillermo Requena; Domonkos Tolnai; Pablo Pérez; Paloma Adeva; José A. Jiménez; Andreas Stark; Norbert Schell

doi:10.3989/revmetalm.043

Autores/as

Gerardo Garcés Department of Physical Metallurgy, National Center for Metallurgical Research (CENIM-CSIC)
Guillermo Requena Institute of Materials Research, German Aerospace Centre - RWTH
Domonkos Tolnai Institute of Materials Research, Helmholtz-Zentrum Geesthacht
Pablo Pérez Department of Physical Metallurgy, National Center for Metallurgical Research (CENIM-CSIC)
Paloma Adeva Department of Physical Metallurgy, National Center for Metallurgical Research (CENIM-CSIC)
José A. Jiménez Department of Physical Metallurgy, National Center for Metallurgical Research (CENIM-CSIC)
Andreas Stark Institute of Materials Research, Helmholtz-Zentrum Geesthacht
Norbert Schell Structural Research on New Materials, Helmholtz-Zentrum Geesthacht

DOI:

https://doi.org/10.3989/revmetalm.043

Palabras clave:

Aleaciones de magnesio, Coeficiente de dilatación térmica, Difracción de radiación sincrotrón, Fase LPSO

Resumen

El coeficiente lineal de expansión térmica de la fase LPSO con estructura cristalográfica 18R se determinó en el intervalo entre temperatura ambiente y 400 °C mediante dilatometría y difracción de radiación sincrotrón. Los resultados muestran claramente que el coeficiente lineal de dilatación térmica de las fases magnesio y LPSO son similares y, por tanto, no se generan tensiones térmicas en su intercara durante el procesado termomecánico de aleaciones bifásicas Mg-Y-Zn.

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