Numerical and Experimental Analysis of the Anisotropy Evolution in Aluminium Alloys Processed by Asymmetric Rolling

Authors

  • Gabriela Vincze 1)Centre of Mechanical Technology and Automation (TEMA), Department of Mechanical Engineering, University of Aveiro, 3810-193 Aveiro, Portugal 2)LASI – Intelligent Systems Associate Laboratory, Portugal
  • Augusto Lopes Department of Materials and Ceramic Engineering, CICECO, University of Aveiro, 3810-193 Aveiro, Portugal
  • Marilena C. Butuc 1)Centre of Mechanical Technology and Automation (TEMA), Department of Mechanical Engineering, University of Aveiro, 3810-193 Aveiro, Portugal 2)LASI – Intelligent Systems Associate Laboratory, Portugal
  • Jesús Yánez Centre of Mechanical Technology and Automation (TEMA), Department of Mechanical Engineering, University of Aveiro, 3810-193 Aveiro, Portugal
  • Diogo Lopes Centre of Mechanical Technology and Automation (TEMA), Department of Mechanical Engineering, University of Aveiro, 3810-193 Aveiro, Portugal
  • Laura Holz Centre of Mechanical Technology and Automation (TEMA), Department of Mechanical Engineering, University of Aveiro, 3810-193 Aveiro, Portugal
  • Ana Graça Centre of Mechanical Technology and Automation (TEMA), Department of Mechanical Engineering, University of Aveiro, 3810-193 Aveiro, Portugal
  • António B. Pereira 1)Centre of Mechanical Technology and Automation (TEMA), Department of Mechanical Engineering, University of Aveiro, 3810-193 Aveiro, Portugal 2)LASI – Intelligent Systems Associate Laboratory, Portugal

DOI:

https://doi.org/10.13052/ejcm2642-2085.3131

Keywords:

anisotropy, texture, aluminium alloys, rolling, visco-plastic self-consistent model

Abstract

One of the most important characteristics of the sheet metal is its anisotropy. Asymmetric rolling (ASR) shows to be an adequate process to change the material anisotropy by increasing the normal anisotropy and decreasing the planar anisotropy. In this work, it is analysed the relationship between anisotropy and texture evolution using experimental and numerical approaches. Experimentally, the texture is modified by rolling, involving symmetric (SR), asymmetric rolling continuous (ARC) and asymmetric reverse (ARR) routes and different reductions per pass. The numerical analysis was performed through the visco-plastic self-consistent model where two hardening laws were considered, namely the Voce-type (V) and the dislocation density-based model (DDR). The main objective of the numerical method was to test the performance of the VPSC model for large plastic deformation. The Lankford coefficients decrease in RD and increase in TD with the increase in the total thickness reduction. This trend observed experimentally is well captured by the VPSC model, however, in terms of R-value, an overestimation is observed in both cases with better results for Voce-type law.

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Author Biographies

Gabriela Vincze, 1)Centre of Mechanical Technology and Automation (TEMA), Department of Mechanical Engineering, University of Aveiro, 3810-193 Aveiro, Portugal 2)LASI – Intelligent Systems Associate Laboratory, Portugal

Gabriela Vincze received a Ph.D. degree in Mechanical Engineering from Aveiro University. Currently, she works in the same department. Her research focuses on the analysis of materials with emphasis on metallic materials from micro to macro scale and implementation of physical and constitutive models to predict the mechanical behavior of materials for long-term applications. She has been serving as a reviewer for many highly respected journals.

Augusto Lopes, Department of Materials and Ceramic Engineering, CICECO, University of Aveiro, 3810-193 Aveiro, Portugal

Augusto Lopes received a Ph.D. degree in Materials Science from Aveiro University. Currently, he is an Assistant Professor in the Department of Materials and Ceramics Engineering. His research focuses on the relationship between material structure and the macroscopic behaviour of metals. He has been serving as a reviewer for many highly respected journals.

Marilena C. Butuc, 1)Centre of Mechanical Technology and Automation (TEMA), Department of Mechanical Engineering, University of Aveiro, 3810-193 Aveiro, Portugal 2)LASI – Intelligent Systems Associate Laboratory, Portugal

Marilena C. Butuc received the bachelor’s degree in mechanical engineering from University of Timisoara, Romania, in 1993, and the philosophy of doctorate degree in Mechanical Engineering from Faculty of Engineering, Porto University in 2004. She is a Researcher at the Centre for Mechanical Technology and Automation, University of Aveiro, Portugal. Her research areas include sheet metal forming, material modelling and forming limits simulation. She is acting as a reviewer for several prestigious journals.

Jesús Yánez, Centre of Mechanical Technology and Automation (TEMA), Department of Mechanical Engineering, University of Aveiro, 3810-193 Aveiro, Portugal

Jesús Yánez is currently a PhD student and was a research fellow in the project “Enhanced manufacturing of aluminium alloys products for environmentally transportation sector” – POCI-01-0145-FEDER-032362 (PTDC/EME-ESP/32362/2017) which is the main sponsor of the present work. His research interest is related to sheet metal forming of light alloys.

Diogo Lopes, Centre of Mechanical Technology and Automation (TEMA), Department of Mechanical Engineering, University of Aveiro, 3810-193 Aveiro, Portugal

Diogo Lopes was a research fellow in the project “Enhanced manufacturing of aluminium alloys products for environmentally transportation sector” – POCI-01-0145-FEDER-032362 (PTDC/EME-ESP/32362/2017) which is the main sponsor of the present work. His research interest is related to sheet metal forming of light alloys.

Laura Holz, Centre of Mechanical Technology and Automation (TEMA), Department of Mechanical Engineering, University of Aveiro, 3810-193 Aveiro, Portugal

Laura Holz is a PhD student in Refining, Petrochemical and Chemical Engineering from Aveiro University. She is an expert in materials’ characterization by X-ray diffraction, having a solid background in materials science. Her research interest is related with ceramics for energy-related research. She is the author/co-author of 11 articles in international peer reviewed scientific articles, 4 book chapters, presenting her work in several international conferences.

Ana Graça, Centre of Mechanical Technology and Automation (TEMA), Department of Mechanical Engineering, University of Aveiro, 3810-193 Aveiro, Portugal

Ana Graça received a Ph.D. degree in Mechanical Engineering from Aveiro University. She was a researcher in the project “Enhanced manufacturing of aluminium alloys products for environmentally transportation sector” – POCI-01-0145-FEDER-032362 (PTDC/EME-ESP/32362/2017). Her research focuses on computational mechanics with application to metal forming.

António B. Pereira, 1)Centre of Mechanical Technology and Automation (TEMA), Department of Mechanical Engineering, University of Aveiro, 3810-193 Aveiro, Portugal 2)LASI – Intelligent Systems Associate Laboratory, Portugal

Antonio Pereira received a Ph.D. degree in Mechanical Engineering from Aveiro University. Currently, he is an Associate Professor with aggregation in the same department. His research focuses on the mechanics of composite materials, with particular emphasis on delamination fracture mechanics, the plasticity of metals, and welding. He has been serving as a reviewer and editor for many highly respected journals.

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Published

2022-09-24

Issue

Section

Original Article