Thixocasting of a near-liquidus cast Al-Mg based alloy

This letter discusses the use of a near liquidus cast Al-Mg based alloy for semi-solid thixocasting. The alloy that was examined was the UK designated alloy LM5. It seems apparent that liquidus casting is a viable alternative for producing thixocast billets from the results of this experiment. Thus,...

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Bibliographic Details
Published in:Journal of materials science letters 1999-11, Vol.18 (22), p.1869-1870
Main Authors: YURKO, J. A, NIU, X. P, PINWILL, I
Format: Article
Language:English
Subjects:
Applied sciences
Exact sciences and technology
Foundry engineering
Metals. Metallurgy
Pressure before casting
Production techniques
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Summary:This letter discusses the use of a near liquidus cast Al-Mg based alloy for semi-solid thixocasting. The alloy that was examined was the UK designated alloy LM5. It seems apparent that liquidus casting is a viable alternative for producing thixocast billets from the results of this experiment. Thus, as there is no stirring involved, this technology provides a very rady possibility to develop new thixotropic materials. Porosity, surface defects, and mechanical properties are comparable to parts made with electromagnetically stirred semi-solid aluminum. The produced parts also showed potential applications for anodizing, which is hardly achieved by using commercially available thixocast Al alloys, such as Al A356 and A357.
ISSN:0261-8028
DOI:10.1023/A:1006671927753