Effect of Iron and Magnesium on Alloy AL9M Structure and Properties


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The effect of iron impurity on the structure and properties of aluminum alloy AL9M, especially its action on magnesium distribution within the structure, is studied. The microstructure of a cast component of this alloy broken during operation is analyzed. It is shown that iron impurity has an unfavorable effect on structure and mechanical properties of a casting due to appearance of Al9Fe2Si and Al18Fe2Mg7Si10 intermetallics. Formation of these intermetallics consumes a considerable amount of magnesium and lowers the content of the Q(Al5Cu2Mg8Si6) strengthening phase in the alloy structure.

Sobre autores

V. Bazhenov

National Research Technological University “MISiS”

Autor responsável pela correspondência
Email: misistip@mail.ru
Rússia, Moscow

A. Koltygin

National Research Technological University “MISiS”

Email: misistip@mail.ru
Rússia, Moscow

V. Belov

National Research Technological University “MISiS”

Email: misistip@mail.ru
Rússia, Moscow

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