I also like the book recommended by swall:
Casting Kaiser Aluminum, 3rd Edn., (1974).
Seems to answer many questions that come up on aluminum castings.
No ISBN in my copy. Interesting perhaps, that there is no mention of Alcoa in the entire book or in the Acknowledgements (page 626). Mechanical properties originally determined by Alcoa are credited to the Aluminum Association.
In Fundamentals of Die Casting Design, G. Dar-Meir, PhD, makes some rather biting remarks about NADCA-sponsored research and published models. Anyone knowledgeable enough & with enough time to evaluate these remarks?
Ken