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The Effect of Mould Constraints on the 0.2% Proof Stress of As-Cast Mg-Al Alloys
Jönköping University, School of Engineering, JTH, Mechanical Engineering. Jönköping University, School of Engineering, JTH. Research area Materials and Manufacturing - Casting.
Jönköping University, School of Engineering, JTH, Mechanical Engineering. Jönköping University, School of Engineering, JTH. Research area Materials and Manufacturing - Casting.
2005 (English)In: Materials Science Forum, ISSN 0255-5476, E-ISSN 1662-9752, Vol. 488-489, p. 165-168Article in journal (Refereed) Published
Abstract [en]

A mapping of fatigue crack growth rates in thick plates of a high strength aluminium alloy has been done. The plate thicknesses investigated was 100, 150 and 200 mm. In this work, material from near edge at near surface and mid-thickness has been investigated. Measurements of crack length has been performed using DC potential drop. Cyclic condensation is used in order to reveal crack growth behaviour for stage I and the earlier part of stage II crack growth. Influence of crack closure, crack branching and slow growing side cracks on fatigue crack growth rate of S-L and L-T oriented specimens are discussed. Variation of difference in growth rate in the upper part of the stage II growth between near surface and mid thickness positioned L-T specimens are found to vary with plate thickness.

Place, publisher, year, edition, pages
2005. Vol. 488-489, p. 165-168
Keyword [en]
Aluminum base alloys; Mechanical properties; Fatigue failure; Crack propagation; Al Zn Mg Cu alloys
Identifiers
URN: urn:nbn:se:hj:diva-4783DOI: 10.4028/www.scientific.net/MSF.488-489.165OAI: oai:DiVA.org:hj-4783DiVA, id: diva2:35603
Available from: 2008-07-08 Created: 2008-07-08 Last updated: 2017-12-12Bibliographically approved

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Wassén, MagnusCao, Haiping

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