Heat treatments for complex bronze aluminum, martensitic transformation and kappa phase – hardenability

Authors

  • Samuel Rosario Francia Professor. Academic Professional School of Metallurgical Engineering. National University of San Marcos
  • Luis Villacorta Arévalo Professor. Academic Professional School of Metallurgical Engineering. National University of San Marcos
  • Víctor Falconi Rosadio Professor. Academic Professional School of Metallurgical Engineering. National University of San Marcos
  • Walter Rengifo Sing Professor. Academic Professional School of Metallurgical Engineering. National University of San Marcos

DOI:

https://doi.org/10.15381/iigeo.v14i27.767

Keywords:

aluminum, bronze, heat treatment, temple, kappa phase

Abstract

The aluminum bronzes are cooper based alloys which contains generally from 8.0% to 12.0% of aluminum. When you add elements such as iron, nickel and manganese along with the phase alpha (α) which is rich in copper and the eutectoid alpha/ gamma2 (α/γ2), it appears precipitations whose nature depends on the elements added quantity, with slow cooling in the sand’s molds (50 ºC/min), are presented alpha.beta´ (α.β´) or alpha, beta´. gamma2 (α, β´.γ2) which because of the different shapes that the precipitations have, they are simplified in k1, k2, k3, k4. For the fusion, it is required a greater care because of its tendency to absorb hydrogen, they respond to heat treatments of quenching and tempering reaching a hardness between 90 Brinell (56 RcB) and 390 Brinell (42 Rc C) always that the k phases are dissolved or uniformly distributed in the main phase.

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Published

2011-07-15

Issue

Vol. 14 No. 27 (2011)

Section

Artículos científicos

License

Copyright (c) 2011 Samuel Rosario F., Luis Villacorta A., Víctor Falconi R., Walter Rengifo S.

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How to Cite

Rosario Francia, S., Villacorta Arévalo, L., Falconi Rosadio, V., & Rengifo Sing, W. (2011). Heat treatments for complex bronze aluminum, martensitic transformation and kappa phase – hardenability. Revista Del Instituto De investigación De La Facultad De Minas, Metalurgia Y Ciencias geográficas, 14(27). https://doi.org/10.15381/iigeo.v14i27.767