The influence of microstructure on the bauschinger effect in an Al-Si-Mg casting alloy

Caceres, CH, Griffiths, JR and Reiner, P (1996) The influence of microstructure on the bauschinger effect in an Al-Si-Mg casting alloy. Acta Materialia, 44 1: 15-23. doi:10.1016/1359-6454(95)00171-6


Author Caceres, CH
Griffiths, JR
Reiner, P
Title The influence of microstructure on the bauschinger effect in an Al-Si-Mg 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)00171-6
Open Access Status
Volume 44
Issue 1
Start page 15
End page 23
Total pages 9
Place of publication OXFORD
Publisher PERGAMON-ELSEVIER SCIENCE LTD
Language eng
Subject 2500 Materials Science
2504 Electronic, Optical and Magnetic Materials
2506 Metals and Alloys
Abstract The Bauschinger effect has been studied in an Al-7% Si-0.4% Mg casting alloy for a range of dendrite cell sizes and aspect ratios of the Si particles. The internal stresses increase linearly with the imposed pre-strain for strains up to 0.007, gradually saturating thereafter. For a given value of the cell size the internal stresses reach a higher saturation value when the Si particles have a larger aspect ratio. At constant aspect ratio of the Si particles, smaller cell sizes result in higher internal stresses at large strains. Current models for dispersion hardening can be used to calculate the stresses in the particles. The calculations are in very good agreement with the experimental results.
Keyword Materials Science, Multidisciplinary
Metallurgy & Metallurgical Engineering
Materials Science
Metallurgy & Metallurgical Engineering
MATERIALS SCIENCE, MULTIDISCIPLINARY
METALLURGY & METALLURGICAL ENGINEERING
Q-Index Code C1
Institutional Status Unknown

Document type: Journal Article
Sub-type: Article (original research)
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