Effect of hot rolling and heat treatment of Al-STi-1B master alloy on the grain refining efficiency of aluminium

被引：54
作者：
Venkateswarlu, K
Murty, BS
Chakraborty, M [1 ]
机构：
[1] Indian Inst Technol, Dept Met & Mat Engn, Kharagpur 721302, W Bengal, India
[2] Natl Met Lab, Jamshedpur 831007, Bihar, India
来源：
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING | 2001年 / 301卷 / 02期
关键词：
grain refinement; heat treatment; hot rolling; Al-STi-lB; aluminium;
D O I：
10.1016/S0921-5093(00)01422-2
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
The influence of hot rolling and annealing of Al-5Ti-1B master alloy on its grain refining efficiency has been studied in detail. Both hot rolling and annealing improve the grain refining efficiency of the master alloy. Rolling results in the fracture of TiAl3 particles. The amount of deformation required for achieving good grain refinement decreases with increase in rolling temperature. Grain refining efficiency of the master alloy also increases with increase in annealing temperature. The improved grain refining efficiency of the master alloy on annealing is attributed to the increased fraction of TiAl3 and the possible formation of(Ti,Al)B-2. (C) 2001 Elsevier Science B.V. All rights reserved.
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页码：180 / 186
页数：7
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