Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1639002 | Transactions of Nonferrous Metals Society of China | 2011 | 10 Pages |
Abstract
The effects of bismuth and the combination of bismuth and strontium on the eutectic silicon structure in Al-7Si-0.4Mg alloys were investigated under different solidification conditions. The results show that bismuth has a refining effect on the eutectic silicon and its refinement behavior increases with increasing Bi content up to 0.5% (mass fraction). When bismuth is added into the molten alloy modified with strontium, a higher Sr/Bi mass ratio of at least 0.45 is required to attain full modification of the eutectic silicon.
Related Topics
Physical Sciences and Engineering
Materials Science
Metals and Alloys
Authors
S. FARAHANY, A. OURDJINI, M.H. IDRIS, L.T. THAI,