Publication detail

The Influence of Foundry Scrap Returns on Chemical Composition and Microstructure Development of AlSi9Cu3 Alloy

ŠMALC, J. VONČINA, M. MRVAR, P. BALAŠKO, T. KRUTIŠ, V. PETRIČ, M.

Original Title

The Influence of Foundry Scrap Returns on Chemical Composition and Microstructure Development of AlSi9Cu3 Alloy

Type

journal article in Web of Science

Language

English

Original Abstract

Recycling is now, more than ever, an important part of any foundry process due to the high cost of energy. The basis of the work presented here is a study of the addition of foundry scrap returns to the melt in order to reduce material and energy costs. The most important issue in such a process is the quality of both the prepared melt and final product. In this work, scrap returns were added to the AlSi9Cu3 base alloy in different proportions. Chemical composition was monitored, the solidification path was predicted by CALPHAD calculations and monitored by thermal analysis, and the formed microstructure was studied. The mechanical properties were also determined. The results showed that as the amount of scrap returns increased, elements such as Fe, Ni, Pb, Sr, etc. were more built up and elements such as Mg, Mn, Cr, etc. were decreased due to oxidation. The different chemical composition led to a reduced Mn:Fe ratio, resulting in the formation of needle-like Fe-rich phases and a decrease in mechanical properties.

Keywords

casting; foundry scrap return; recycling; solidification; Al cast alloys

Authors

ŠMALC, J.; VONČINA, M.; MRVAR, P.; BALAŠKO, T.; KRUTIŠ, V.; PETRIČ, M.

Released

3. 5. 2023

Publisher

MDPI

Location

BASEL

ISBN

2073-4352

Periodical

Crystals

Year of study

13

Number

5

State

Swiss Confederation

Pages from

1

Pages to

13

Pages count

13

URL

https://www.mdpi.com/2073-4352/13/5/757

Full text in the Digital Library

http://hdl.handle.net/11012/213577

BibTex

@article{BUT184056,
  author="Jan {Šmalc} and Maja {Vončina} and Primož {Mrvar} and Tilen {Balaško} and Vladimír {Krutiš} and Mitja {Petrič}",
  title="The Influence of Foundry Scrap Returns on Chemical Composition and Microstructure Development of AlSi9Cu3 Alloy",
  journal="Crystals",
  year="2023",
  volume="13",
  number="5",
  pages="13",
  doi="10.3390/cryst13050757",
  issn="2073-4352",
  url="https://www.mdpi.com/2073-4352/13/5/757"
}