Fatigue Behavior and Life Prediction for Aluminum Castings in the Absence of Casting Flaws

Paper #:
  • 2011-01-0193

Published:
  • 2011-04-12
Citation:
Wang, Q. and Jones, P., "Fatigue Behavior and Life Prediction for Aluminum Castings in the Absence of Casting Flaws," SAE Int. J. Mater. Manuf. 4(1):289-297, 2011, https://doi.org/10.4271/2011-01-0193.
Pages:
9
Abstract:
Cast aluminum alloys are increasingly used in cyclically loaded automotive structural applications for light weight and fuel economy. The fatigue resistance of aluminum castings strongly depends upon the presence of casting flaws and characteristics of microstructural constituents. The existence of casting flaws significantly reduces fatigue crack initiation life. In the absence of casting flaws, however, crack initiation occurs at the fatigue-sensitive microstructural constituents. Cracking and debonding of large silicon (Si) and Fe-rich intermetallic particles and crystallographic shearing from persistent slip bands in the aluminum matrix play an important role in crack initiation. This paper presents fatigue life models for aluminum castings free of casting flaws, which complement the fatigue life models for aluminum castings containing casting flaws published in [1].
Access
Now
SAE MOBILUS Subscriber? You may already have access.
Buy
Select
Price
List
Download
$27.00
Mail
$27.00
Members save up to 40% off list price.
Share
HTML for Linking to Page
Page URL

Related Items

Standard
2012-03-12
Technical Paper / Journal Article
2011-04-12
Article
2017-03-13
Book
1999-12-15
Training / Education
2017-10-19