Microstructure and texture evolution with relation to mechanical properties of compared symmetrically and asymmetrically cold rolled aluminum alloy

Kraner, Jakob (author), Fajfar, Peter (author), Palkowski, Heinz (author), Kugler, Goran (author), Godec, Matjaž (author), Paulin, Irena (author)

The impact of asymmetric cold rolling was quantitatively assessed for an industrial aluminum alloy AA 5454. The asymmetric rolling resulted in lower rolling forces and higher strains compared to conventional symmetric rolling. In order to demonstrate the positive effect on the mechanical properties with asymmetric rolling, tensile tests, plastic-strain-ratio tests and hardness measurements were conducted. The improvements to the microstructure and the texture were observed with a light and scanning electron microscope; the latter making use of electron-backscatter diffraction. The result of the asymmetric rolling was a much lower planar anisotropy and a more homogeneous metal sheet with finer grains after annealing to the soft condition. The increased isotropy of the deformed and annealed aluminum sheet is a product of the texture heterogeneity and reduced volume fractions of separate texture components.

• Language: English
• Keywords: cold rolling, industrial aluminium alloy, mechanical properties, microstructures, asymmetric rolling, aluminum alloy, planar anisotropy
• Work type: Article
• Typology: 1.01 - Original Scientific Article
• Organization: NTF - Faculty of Natural Sciences and Engineering
• Publication status: Published
• Publication version: Version of Record
• Year: 2020
• Number of pages: 14 str.
• Numbering: Vol. 10, iss. 2, art. 156
• PID: 20.500.12556/RUL-133248
• UDC: 620.1/.2
• ISSN on article: 2075-4701
• DOI: 10.3390/met10020156
• COBISS.SI-ID: 1547178
• Publication date in RUL: 18.11.2021

Record is a part of a journal

• Title: Metals
• Shortened title: Metals
• Publisher: MDPI AG
• ISSN: 2075-4701
• COBISS.SI-ID: 15976214

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• License: CC BY 4.0, Creative Commons Attribution 4.0 International
• Link: http://creativecommons.org/licenses/by/4.0/
• Description: This is the standard Creative Commons license that gives others maximum freedom to do what they want with the work as long as they credit the author.
• Licensing start date: 01.02.2020