Publication detail

Effect of gassing and solidification rate on structure, porosity and mechanical properties of AlSi9Cu3 alloy castings

ROUČKA, J. VEVERKA, A. DIVIŠ, V. ŇUKSA, P.

Original Title

Effect of gassing and solidification rate on structure, porosity and mechanical properties of AlSi9Cu3 alloy castings

Type

conference paper

Language

English

Original Abstract

Test specimens of AlSi9Cu3 alloy cast in sand and metalic moulds were used to assess the extent of porosity in dependence on the gas content in the melt and on the solidification rate. On the basis of the dendrite arm spacing (DAS) the size of primary phases was evaluated and the mechanical properties of test pieces were measured. It has been proved that higher solidification rates contributes to greatly reduced porosity, smaller size of individual gas pores, finer structure, and higher strength and ductility of the alloy. The shape of pores is influenced by gas content significantly.

Keywords

Porosity, cooling rate, dendrite arm spacing, mechanical properties

Authors

ROUČKA, J.; VEVERKA, A.; DIVIŠ, V.; ŇUKSA, P.

RIV year

2007

Released

10. 10. 2007

Publisher

Trasactions of the Universities of Košice

Location

Košice

Pages from

90

Pages to

96

Pages count

7

BibTex

@inproceedings{BUT23256,
  author="Jaromír {Roučka} and Aleš {Veverka} and Vladimír {Diviš} and Petr {Ňuksa}",
  title="Effect of gassing and solidification rate on structure, porosity and mechanical properties of AlSi9Cu3 alloy castings",
  booktitle="Aluminium 2007",
  year="2007",
  pages="90--96",
  publisher="Trasactions of the Universities of Košice",
  address="Košice"
}