Study on hardness and microstructural characteristics of sand cast Al-Si-Cu alloys

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ZEREN M., Karakulak E.

BULLETIN OF MATERIALS SCIENCE, vol.32, no.6, pp.617-620, 2009 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 32 Issue: 6
  • Publication Date: 2009
  • Doi Number: 10.1007/s12034-009-0095-8
  • Journal Name: BULLETIN OF MATERIALS SCIENCE
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.617-620
  • Keywords: Al-Si-Cu alloys, Cu content, microstructure, heat-treatment
  • Kocaeli University Affiliated: Yes

Abstract

In this study, the influence of Cu content on the hardness and microstructural characteristics of sand cast Al-Si-Cu alloys have been investigated. Al-Si alloys with 2% and 5% Cu have been utilized for this purpose. Solidification of Al-Si-Cu alloys have been realized by melting in a gas furnace with a crucible and casting in green sand molds at 690 degrees C. The solution treatment has been performed at 500 degrees C for 7 h and then specimens were quenched in water. The samples have been aged at 190 degrees C for 15 h to observe the effect of aging on mechanical properties.