Abstract
Pure aluminum and several aluminum alloy melts with various gas content were cast into permanent molds which show different cooling rate. Porosity measurement was carried out on the castings derived to understand the relationship between gas content in melt and amount of porosity formed in the casting relative to cooling rate which was measured as solidification time. Porosity was found to appear when the gas content in melt exceeds an permissible gas content which is dependent on chemical composition of alloy and cooling rate. Relationship between solidification time and permissible gas content obtained from density measurement was found to be different from that of dye penetrant test.
Sign-in/Register to access full text options 
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 call
