Damage by the cracking of silicon particles in an Al-7Si-0.4Mg casting alloy

Caceres, CH and Griffiths, JR (1996) Damage by the cracking of silicon particles in an Al-7Si-0.4Mg casting alloy. Acta Materialia, 44 1: 25-33. doi:10.1016/1359-6454(95)00172-8

Author Caceres, CH
Griffiths, JR
Title Damage by the cracking of silicon particles in an Al-7Si-0.4Mg casting alloy
Journal name Acta Materialia   Check publisher's open access policy
ISSN 1359-6454
Publication date 1996-01-01
Year available 1996
Sub-type Article (original research)
DOI 10.1016/1359-6454(95)00172-8
Open Access Status Not yet assessed
Volume 44
Issue 1
Start page 25
End page 33
Total pages 9
Place of publication OXFORD
Language eng
Subject 2500 Materials Science
2504 Electronic, Optical and Magnetic Materials
2506 Metals and Alloys
Abstract The cracking of Si particles during plastic deformation has been studied for different microstructures produced by varying the solidification rate and length of solution treatment. The number of cracked particles increases with the applied strain. The larger and longer particles are more prone to cracking. In coarser structures particle cracking occurs at low strains, while in finer structures the progression of damage is more gradual. Between 3 and 10% of the particles crack prior to fracture. The stresses in the particles can be calculated using current models of dispersion hardening and the particle cracking can be described by Weibull statistics. Assuming that fracture occurs when a critical level of damage is attained, the ductility of the alloy can be expressed as a function of the dendrite cell size and the average size and aspect ratio of the cracked Si particles.
Keyword Materials Science, Multidisciplinary
Metallurgy & Metallurgical Engineering
Materials Science
Metallurgy & Metallurgical Engineering
Q-Index Code C1
Institutional Status Unknown

Document type: Journal Article
Sub-type: Article (original research)
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Citation counts: TR Web of Science Citation Count  Cited 159 times in Thomson Reuters Web of Science Article | Citations
Scopus Citation Count Cited 176 times in Scopus Article | Citations
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