ENHANCED HETEROGENEOUS NUCLEATION OF ALPHA-AL IN AMORPHOUS ALUMINUM-ALLOYS

被引：60
|
作者：
SCHUMACHER, P
GREER, AL
机构：
[1] University of Cambridge, Department of Materials Science and Metallurgy, Cambridge, CB2 3QZ, Pembroke Street
来源：
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING | 1994年 / 181卷 / pt 2期
关键词：
Aluminum alloys;
D O I：
10.1016/0921-5093(94)90858-3
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
The low atomic mobility in metallic glasses such as amorphous aluminium alloys permits the isothermal study of heterogeneous nucleation. The action of conventional grain-refining additions containing Al3Ti and TiB2 has been investigated microscopically in a devitrification study of Al85Y8Ni5Co2. Particles of TiB2 with a thin coating of Al3Ti are the nucleating agent; copious nucleation of alpha-Al occurs on the (001) faces of these particles.
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页码：1335 / 1339
页数：5
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