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  • 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, metallographic 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 aluminum surfaces and features ferrum only in the form of tiny angulate particles always accompanied by manganese. 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.
  • 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, metallographic 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 aluminum surfaces and features ferrum only in the form of tiny angulate particles always accompanied by manganese. 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. (en)
Title
  • Influence of Silumine Castings Microstructure on Component Failure Resistance
  • Influence of Silumine Castings Microstructure on Component Failure Resistance (en)
skos:prefLabel
  • Influence of Silumine Castings Microstructure on Component Failure Resistance
  • Influence of Silumine Castings Microstructure on Component Failure Resistance (en)
skos:notation
  • RIV/00010669:_____/09:#0000943!RIV10-MSM-00010669
http://linked.open...avai/riv/aktivita
http://linked.open...avai/riv/aktivity
  • Z(MSM0001066903)
http://linked.open...iv/cisloPeriodika
  • 2
http://linked.open...vai/riv/dodaniDat
http://linked.open...aciTvurceVysledku
http://linked.open.../riv/druhVysledku
http://linked.open...iv/duvernostUdaju
http://linked.open...titaPredkladatele
http://linked.open...dnocenehoVysledku
  • 319341
http://linked.open...ai/riv/idVysledku
  • RIV/00010669:_____/09:#0000943
http://linked.open...riv/jazykVysledku
http://linked.open.../riv/klicovaSlova
  • silumine; casting; impacte resistance; fatigue; porosity; intermetallic phases (en)
http://linked.open.../riv/klicoveSlovo
http://linked.open...odStatuVydavatele
  • CZ - Česká republika
http://linked.open...ontrolniKodProRIV
  • [9CC03FA451F5]
http://linked.open...i/riv/nazevZdroje
  • Czech Aerospace Proceeding / Letecký zpravodaj
http://linked.open...in/vavai/riv/obor
http://linked.open...ichTvurcuVysledku
http://linked.open...cetTvurcuVysledku
http://linked.open...UplatneniVysledku
http://linked.open...v/svazekPeriodika
  • 2/2009
http://linked.open...iv/tvurceVysledku
  • Růžek, Roman
  • Janová, Drahomíra
  • Machková, Miroslava
http://linked.open...n/vavai/riv/zamer
issn
  • 1211-877X
number of pages
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