Details

Title

Three Dimensional Morphology of β-Al5FeSi Intermetallics in AlSi Alloys

Journal title

Archives of Foundry Engineering

Yearbook

2015

Numer

No 1

Publication authors

Keywords

Aluminum alloys ; Intermetallics ; β-Al5FeSi ; X-ray tomography ; Morphology ; solidification

Divisions of PAS

Nauki Techniczne

Description

Archives of Foundry Engineering continues the publishing activity started by Foundry Commission of the Polish Academy of Sciences (PAN) in Katowice in 1978. The initiator of it was the first Chairman Professor Dr Eng. Wacław Sakwa – Corresponding Member of PAN, Honorary Doctor of Czestochowa University of Technology and Silesian University of Technology. This periodical first name was „Solidification of Metals and Alloys” , and made possible to publish the results of works achieved in the field of the Basic Problems Research Cooperation. The subject of publications was related to the title of the periodical and concerned widely understand problems of metals and alloys crystallization in a casting mold. In 1978-2000 the 44 issues have been published. Since 2001 the Foundry Commission has had patronage of the annually published “Archives of Foundry” and since 2007 quarterly published “Archives of Foundry Engineering”. Thematic scope includes scientific issues of foundry industry:

  • Theoretical Aspects of Casting Processes,
  • Innovative Foundry Technologies and Materials,
  • Foundry Processes Computer Aiding,
  • Mechanization, Automation and Robotics in Foundry,
  • Transport Systems in Foundry,
  • Castings Quality Management,
  • Environmental Protection.

Abstract

Iron is the most common and detrimental impurity in casting alloys and has been associated with many defects. The main consequence of

the presence or adding of iron to AlSi alloys is the formation Fe-rich intermetallics with especially deleterious β-Al5FeSi. β-Al5FeSi phases

are most often called needles on 2D micro sections, whilst platelets in 3D geometry. The x-ray tomography results have demonstrated Ferich

phases with shapes different from simple forms such as needles or platelets and presented bent and branched phases. β grown as

complicated structure of bent and branched intermetallics can decrease feeding ability, strengthen pores nucleation and eutectic colonies

nucleation leading to lower permeability of mushy zone and porosity in the castings.

Publisher

The Katowice Branch of the Polish Academy of Sciences

Date

2015[2015.01.01 AD - 2015.12.31 AD]

Type

Artykuły / Articles

Identifier

ISSN 2299-2944

DOI

10.1515/afe-2015-0010

×