Abstract
The effect of counter-pressure casting parameters on secondary dendrite arm spacing (SDAS) of A357 alloy under different process parameters was studied. Quartz sand mould with chill can strongly decrease the SDAS. Reduced SDAS close to the mould bottom because of chilling was obtained. Pressure seems to have no apparent effect on the SDAS. In order to obtain casts with UTS ⩾ 320 MPa, SDAS must be less than 55 μm, which means a local cooling rate VL⩾0.23 °C/s.
Full Text 
Sign-in/Register to access full text options
Sign-in/Register to access full text options 
Published version (
Free)
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callMore From: Journal of Wuhan University of Technology-Mater Sci Ed
Paper Title
Journal
Date
