Publication detail

Influence of Silumine Casting Microstrukture on Component Failure Resistance

TVARŮŽEK, M. MACHKOVÁ, M. JANOVÁ, D.

Original Title

Influence of Silumine Casting Microstrukture on Component Failure Resistance

Type

journal article - other

Language

English

Original Abstract

The objective of this work is to define causes of reduced resistance to mechanical damage that had occurred for several types of castings. Macro- and micro-porosity, metallographis structure and presence and distribution of particular phases were investigated. Micro-analysis of phase composition was carried out. Based on the metallographic analysis, it is possible to assume that the structure of mechanically more resistant castings is more coarsely grained with larger alpha-phase aluminium surfaces and features ferrum only in the form of tiny angulate particles always accompanied by managanese. The structure of less resistant castings contains larger stellar-shaped particles of Al15(MnFe)3Si2 intermetallic phase, and more importantly, it has sharp, hard and brittle needles of Al5FeSi intermetalic phase, which dramatically deteriorate mechanical properties due to their notch effect.

Keywords

silumine, casting, impacte resistance, fatigue, porosity, intermetallic phases

Authors

TVARŮŽEK, M.; MACHKOVÁ, M.; JANOVÁ, D.

RIV year

2009

Released

1. 12. 2009

Location

Česká Republika

ISBN

1211-877X

Periodical

Letecký zpravodaj

Year of study

2009

Number

2

State

Czech Republic

Pages from

30

Pages to

35

Pages count

6

BibTex

@article{BUT48556,
  author="Martin {Tvarůžek} and Miroslava {Machková} and Drahomíra {Janová}",
  title="Influence of Silumine Casting Microstrukture on Component Failure Resistance",
  journal="Letecký zpravodaj",
  year="2009",
  volume="2009",
  number="2",
  pages="30--35",
  issn="1211-877X"
}