Effect of Adding Lanthanum to Al – 5% Ti – 1% B Master Alloy on the Efficiency of Grain Refinement in Aluminum and Al – 7% Si Alloy

An Al – 5% Ti – 1% B master alloy with a lanthanum addition is prepared by improved technology employing halides. The effect of adding lanthanum to master alloy, introduced into melts of pure aluminum and of Al – 7% Si alloy, on the microstructure and degree of casting grain refinement is establishe...

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Bibliographic Details
Published in:Metal science and heat treatment 2021-09, Vol.63 (5-6), p.243-250
Main Authors: Yufei, Zhao, Bing, Zhou, Yanjun, Zhang, Yingying, Zhang, Jiyin, Guo, Lingjie, Li
Format: Article
Language:English
Subjects:
Alloys
Aluminum
Characterization and Evaluation of Materials
Chemistry and Materials Science
Classical Mechanics
Engineering Thermodynamics
Grain refinement
Halides
Heat and Mass Transfer
Lanthanum
Master alloys
Materials Science
Metallic Materials
Silicon base alloys
Specialty metals industry
Titanium
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Summary:An Al – 5% Ti – 1% B master alloy with a lanthanum addition is prepared by improved technology employing halides. The effect of adding lanthanum to master alloy, introduced into melts of pure aluminum and of Al – 7% Si alloy, on the microstructure and degree of casting grain refinement is established. Asignificant modifying effect of adding lanthanum to Al – 5% Ti – 1% B master alloy during treatment of pure aluminum and its weak effect on modifying Al – 7% Si alloy are established.
ISSN:0026-0673
1573-8973
DOI:10.1007/s11041-021-00678-6