Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1572818 | Materials Characterization | 2006 | 15 Pages |
Abstract
This paper describes a comprehensive study on the combined addition of Ti–B grain refiner and Sr modifier elements to A356 Al–Si alloy. Using different qualitative and quantitative techniques in conventional and semi-solid metal castings, it is shown that, while the refiner and modifier elements affect respectively the nucleation and eutectic reactions, the combined addition not only replicates both individual element effects but also gives the added bonus of better globularity in the semi-solid metal process. A new innovative concept is introduced for fluidity measurement by using the magnitude of remaining liquid in the form of drainage, which is increased by combined treatment.
Related Topics
Physical Sciences and Engineering
Materials Science
Materials Science (General)
Authors
Shahrooz Nafisi, Reza Ghomashchi,