Evolution of Microstructure and Texture in Laboratory- and Industrial-Scaled Production of Automotive Al-Sheets

Jakob Grasserbauer*, Irmgard Weißensteiner, Georg Falkinger, Stefan Mitsche, Peter Uggowitzer, Stefan Pogatscher

*Corresponding author for this work

Research output: Contribution to journalArticle

Abstract

With the rising importance of aluminum sheets for automotive applications, the influence of microstructure and texture on mechanical properties and on forming behavior has gained re-increased interest in recent years. This paper provides an introduction to the topic and demonstrates the evolution of microstructure and texture in the standard alloys EN AW-5182 and EN AW-6016 for different processing scales. Moreover, strategies for texture and microstructure characterization of automotive Al-sheets are discussed. As the development of alloys or processes usually starts in laboratory facilities, the transferability to the industrial scale of the results thereof is studied. Adetailed analysis of the entire processing chain shows good conformity of careful laboratory production with the industrial production concerning microstructure as well as qualitative and quantitative texture evolution for EN AW-5182. While comparable grain sizes can be achieved in final annealed sheets of EN AW-6016, quantitative discrepancies in texture occur between the different production scales for some sample states. The results are discussed in light of the basics of plasticity and recrystallisation including the effect of solutes, primary phases, and secondary phases in the alloys.

Original languageEnglish
Article number469
JournalMaterials
Volume13
Issue number2
DOIs
Publication statusPublished - 19 Jan 2020

Keywords

  • AlMgMn alloys
  • AlMgSi alloys
  • Aluminum alloys
  • Electron backscattered diffraction
  • Texture evolution

ASJC Scopus subject areas

  • Materials Science(all)

Fields of Expertise

  • Advanced Materials Science

Treatment code (Nähere Zuordnung)

  • Basic - Fundamental (Grundlagenforschung)

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