THE SOLIDIFICATION BEHAVIOR OF UNDERCOOLED AL-CU ALLOYS IN CONTACT WITH THE PRIMARY PHASES

被引：15
作者：
CHATTOPADHYAY, K
SWAMY, VT
AGARWALA, SL
机构：
[1] Department of Metallurgy, Indian Institute of Science, Bangalore
来源：
ACTA METALLURGICA ET MATERIALIA | 1990年 / 38卷 / 03期
关键词：
D O I：
10.1016/0956-7151(90)90158-D
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The near eutectic AlCu liquid is undercooled in contact with both α-Al and θ-Al2 Cu phase by entrained droplet technique to study and understand the evolution of solidification microstructures at different undercoolings and for different substrates. Four different types of microstructures could be observed in droplets in contact with α-Al and two distinct morphologies could be observed in the droplets in contact with θ-Al2 Cu. The results can be qualitatively explained with the help of an extrapolated metastable phase diagram and present understanding of solidification in undercooled melt. Finally the knowledge gained is extended to analyse the solidification behaviour of AlCu eutectic melt pool obtained by pulsed laser processing. © 1990.
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收藏
页码：521 / 531
页数：11
相关论文
共 39 条
[1]  
APAYDIN N, 1987, SOLIDIFICATION 87, P93
[2]  
Baker J.C., 1971, SOLIDIFICATION, P23
[3]   THE CONSTITUTION AND PHASE-STABILITY OF OVERLAPPING MELT TRAILS IN AG-CU ALLOYS PRODUCED BY CONTINUOUS LASER MELT QUENCHING [J].
BECK, DG ;
COPLEY, SM ;
BASS, M .
METALLURGICAL TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE, 1982, 13 (11) :1879-1889
[4]   THE EFFECT OF RAPID SOLIDIFICATION VELOCITY ON THE MICROSTRUCTURE OF AG-CU ALLOYS [J].
BOETTINGER, WJ ;
SHECHTMAN, D ;
SCHAEFER, RJ ;
BIANCANIELLO, FS .
METALLURGICAL TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE, 1984, 15 (01) :55-66
[5]   THEORY OF CRYSTAL GROWTH AND INTERFACE MOTION IN CRYSTALLINE MATERIALS [J].
CAHN, JW .
ACTA METALLURGICA, 1960, 8 (08) :554-562
[6]   HETEROGENEOUS NUCLEATION IN SOLIDIFYING ALLOYS [J].
CANTOR, B ;
DOHERTY, RD .
ACTA METALLURGICA, 1979, 27 (01) :33-46
[7]   INTERFACE KINETICS AND SOLIDIFICATION OF ALLOYS - A DISCUSSION OF SOME PHENOMENOLOGICAL MODELS [J].
CAROLI, B ;
CAROLI, C ;
ROULET, B .
ACTA METALLURGICA, 1986, 34 (09) :1867-1877
[8]  
CHATTOPADHYAY K, IN PRESS J CRYSTAL G
[9]   STRUCTURE OF A EUTECTIC ALLOY SOLIDIFIED OVER A HEAT PIPE [J].
CHATTOPADHYAYA, K ;
RAMACHANDRARAO, P .
SCRIPTA METALLURGICA, 1974, 8 (09) :1083-1087
[10]  
Elliot R., 1983, EUTECTIC SOLIDIFICAT
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