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Untersuchung der Kornveredelungsleistung der Al‐5Ti‐1B‐Vorlegierung im Recyclingprozess der A356‐Legierung
Author(s) -
Peeratatsuwan C.,
Chowwathapunya T.
Publication year - 2020
Publication title -
materialwissenschaft und werkstofftechnik
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.285
H-Index - 38
eISSN - 1521-4052
pISSN - 0933-5137
DOI - 10.1002/mawe.201900210
Subject(s) - alloy , refining (metallurgy) , materials science , metallurgy , grain size , process (computing) , dispersion (optics) , computer science , optics , operating system , physics
In this paper, the grain refining performance of Al‐5Ti‐1B master alloy on the recycled A356 alloy is investigated using the macrostructure examination and chemical analysis. Results show that Al‐5Ti‐1B is composed of the dispersion of blocky TiAl 3 particles and mixtures of small TiAl 3 and TiB 2 particles. Both particles refine grain structures of A356 alloy. As the initial recycling process proceeds, A356 alloy still exhibits fine structures. However, during the subsequent recycling process, the grain size of A356 alloy become larger. The concentration of titanium and boron decreases with increasing the number of recycling, especially in the subsequent recycling process. It is proposed that recycling of refined A356 can best be conducted in the initial recycling process and then additional grain refiner needs to be added to maintain the grain refining performance for the continuous recycling process of A356 alloy.