Influence of Solidification Rate and Impurity Content on 5/7-Crossover Alloys

Sebastian Samberger, Lukas Stemper, Peter Uggowitzer, Ramona Tosone, Stefan Pogatscher

Research output: Chapter in Book/Report/Conference proceedingChapterResearch

Abstract

In view of an upcoming scrap wave and the need for products with lower carbon footprint, there is an urgent need to increase the recycled fraction in wrought aluminum alloys. However, due to the narrow compositional limits of conventional aluminum wrought alloys and the higher impurity levels in scrap material, the applicable recycling content is limited. Therefore, new approaches need to be identified to increase the recycled content. The introduction of the AlMgZn(Cu) Crossover alloy concept may prove to be a step forward in escaping the corset of conventional alloying systems. The 5/7-Crossover alloy not only overcomes the long-standing trade-off between the excellent formability of 5xxx-series alloys and the outstanding strength of 7xxx-series alloys by combining both properties but may also tolerate a higher content of impurity elements. The scope of this study is to properly address the 5/7-Crossover alloy’s sustainability in terms of its ability to be manufactured from secondary raw materials. AlMgZn(Cu) alloys with different tramp element concentrations were investigated.
Original languageEnglish
Title of host publicationThe Minerals, Metals & Materials Series
EditorsSamuel Wagstaff
Pages226-233
Number of pages8
Volume2024
DOIs
Publication statusPublished - 3 Feb 2024

Publication series

NameLight Metals 2024
ISSN (Print)2367-1181

Bibliographical note

Publisher Copyright:
© The Minerals, Metals & Materials Society 2024.

Keywords

  • Aluminum
  • Crossover alloys
  • Intermetallics
  • Phase formation
  • Solidification rate

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