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Effect of Chemical Composition on Hot Extrudability and Tribological Behavior of 7000 Series Aluminum Alloys

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Abstract:

Aluminum 7000 series alloys are widely used for aerospace and transportation applications due to their high strength-to-weight ratio. This research investigates the impact of zinc (Zn) and magnesium (Mg) content on the hot extrudability and tribological behavior. Elemental quantities straight away impact flow stress, determining the manufacturing parameters, whereas galling and adhesion frequently degrade tool life. This work illustrates that by assessing essential ram speeds and temperature limits, adjusting Zn and Mg concentrations considerably improves the extrudability limit. A decreasing flow stress during deformation reduces micro-cracking tendency and improves surface quality. The findings provide critical compositional guidelines for high-strength aluminum alloys, effectively balancing processing efficiency with improved surface quality and reduced element adhesion behavior, ensuring better industrial outcomes for advanced structural components.

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Periodical:

Key Engineering Materials (Volume 1048)

Pages:

73-81

DOI:

https://doi.org/10.4028/p-z71Fb9

Citation:

Cite this paper

Online since:

April 2026

Authors:

Sukunthakan Ngernbamrung*, Kuniaki Dohda, Tatsuya Funazuka, Junichi Oshima, Tomomi Shiratori

Keywords:

7000 Series Aluminum Alloys, Element Adhesion, Extrudability, Galling, Hot Extrusion

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Creative Commons CC BY 4.0

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* - Corresponding Author

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