X-ray Microtomographic Characterisation of Porosity and its Influence on Fatigue Crack Growth

Cast Al alloys are seeing increasing use in transport applications due to their high strength‐to‐weight ratio at an acceptable cost compared to many ferrous alloys. Therefore, a quantitative characterisation of the pore distribution and its influence on the evolution of fatigue damage are required t...

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Bibliographic Details
Published inAdvanced engineering materials Vol. 8; no. 6; pp. 476 - 479
Main Authors Li, P., Lee, P. D., Lindley, T. C., Maijer, D. M., Davis, G. R., Elliott, J. C.
Format Journal Article
LanguageEnglish
Published Weinheim WILEY-VCH Verlag 01.06.2006
WILEY‐VCH Verlag
Subjects
Aluminum alloys
Fatigue
X-ray tomography
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Summary:Cast Al alloys are seeing increasing use in transport applications due to their high strength‐to‐weight ratio at an acceptable cost compared to many ferrous alloys. Therefore, a quantitative characterisation of the pore distribution and its influence on the evolution of fatigue damage are required to predict the fatigue life of cast Al alloy components. In this investigation, X‐ray microtomography was used to characterise the 3D morphology of porosity in A356‐T6 specimens and to relate the porosity to fatigue behaviour.
Bibliography:ark:/67375/WNG-TX60QNR1-G
P. Li gratefully acknowledges the financial support of the Overseas Research Student Award (ORS) and the Stephen & Anna Hui Fellowship. The authors also thank the EPSRC (GR/T26344, GR/R28911).
istex:A183D49A6C642E1D733D4CD59536BF06FE50EC1E
ArticleID:ADEM200600051
ObjectType-Article-2
SourceType-Scholarly Journals-1
ObjectType-Feature-1
content type line 23
ISSN:1438-1656
1527-2648
DOI:10.1002/adem.200600051