Centerline Depletion in Direct-Chill Cast Aluminum Alloys: The Avalanche Effect and Its Consequence for Turbulent Jet Casting

被引：4
|
作者：
Wagstaff, Samuel R. [1 ]
Allanore, Antoine [2 ]
机构：
[1] MIT, Dept Mat Sci & Engn, 77 Massachusetts Ave, Cambridge, MA 02139 USA
[2] MIT, Dept Mat Sci & Engn, Met, 77 Massachusetts Ave, Cambridge, MA 02139 USA
来源：
METALLURGICAL AND MATERIALS TRANSACTIONS B-PROCESS METALLURGY AND MATERIALS PROCESSING SCIENCE | 2016年 / 47卷 / 05期
关键词：
MACROSEGREGATION;
D O I：
10.1007/s11663-016-0756-0
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Avalanche dynamics of sedimenting grains in direct-chill casting of aluminum ingots is investigated as a primary driving force for centerline segregation. An analytical model predicting the importance of avalanche events as a function of casting parameters is proposed and validated with prior art results. New experimental results investigating the transient and steady-state centerline segregation of DC casting with a turbulent jet are reported.
引用
收藏
页码：3139 / 3143
页数：5
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