Structural study of Cu-Cr mechanical alloying powders


  • C. Aguilar Departamento de Ingeniería Metalúrgica- Facultad de Ingeniería, Universidad de Santiago de Chile
  • J. Marín Comisión Chilena de Energía Nuclear, CCHEN
  • S. Ordóñez Departamento de Ingeniería Metalúrgica- Facultad de Ingeniería, Universidad de Santiago de Chile
  • D. Celentano Departamento de Ingeniería Mecánica- Facultad de Ingeniería, Universidad de Santiago de Chile
  • F. Castro Centro de Estudios e Investigaciones Técnicas de Guipúzcoa, CEIT
  • V. Martínez Departamento de Ingeniería Metalúrgica- Facultad de Ingeniería, Universidad de Santiago de Chile



Mechanical alloying, Cu-Cr, Grain size, XRD, Stacking faults


The changes of grain size, microstrain, stacking fault probability, stacking fault energy and dislocations density on powder mixtures of copper with 1 and 3 weight % after high energy mechanical milling. The X-ray diffraction profile was analysed by Williamson-Hall (W-H) method. Grain size decreased with the increase of milling time, until values of 106 and 59 nm for 1 and 3 weight % Cr, respectively. As well microstrain increased with milling time. Stacking fault probability increased in function of milling time to value between 1x10–3–8x10–3 for Cu–1 weight % Cr and 3x10–3–8x10–3 for Cu–3 weight % Cr. The stacking fault energy decreased with milling time and amount of chromium. Finally, the dislocations density is between a range between 1x1014–1x1015 m/m3.


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How to Cite

Aguilar, C., Marín, J., Ordóñez, S., Celentano, D., Castro, F., & Martínez, V. (2006). Structural study of Cu-Cr mechanical alloying powders. Revista De Metalurgia, 42(5), 334–344.




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