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Influence of Microstructure on Uniaxial Strain Localization in AA5754 Aluminum Sheets Produced by Various Processing Routes

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Abstract

The application of lightweight aluminum sheets to fabricate automotive components for vehicle weight reduction continues to be limited due to their low formability and high cost. This report summarizes a metallurgical investigation of the influence of various microstructural attributes on the forming and failure characteristics of aluminum sheets produced by lower cost continuous casting processes. The study has identified the combination of microstructural attributes, such as grain size, texture, and second phase particle distribution, in the sheets which make some sheets more formable than others and has traced the origin of these features to the processing history. The results show that the microstructural features present in the sheets have their origin in the casting, rolling, and recrystallization processes involved in their fabrication.

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Authors and Affiliations

  1. Department of Mechanical Engineering, Indian Institute of Technology Bombay, Powai, Mumbai, 400 076, India

    Asim Tewari (Associate Professor)

  2. India Science Lab, General Motors Global Research and Development, GM Technical Centre India Pvt Ltd, Creator Building, International Tech Park Ltd, Whitefield Road, Bangalore, 560 066, India

    S. Vijayalakshmi (Project Engineer), Shashank Tiwari (Senior Researcher) & Pinaki Biswas (Senior Researcher)

  3. Global R&D, Alantum Corporation, Seongnam, Gyonggi-Do, 462 819, Korea

    Sooho Kim (President)

  4. Chemical Sciences and Materials Systems Laboratory, General Motors Research and Development Centre, 30500 Mound Road, Warren, MI, 48090, USA

    Sooho Kim (President), Raja K. Mishra (Technical Fellow), Robert Kubic (Staff Technician) & Anil K. Sachdev (Lab Group Manager)

Authors
  1. Asim Tewari
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  2. S. Vijayalakshmi
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  3. Shashank Tiwari
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  4. Pinaki Biswas
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  5. Sooho Kim
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  6. Raja K. Mishra
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  7. Robert Kubic
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  8. Anil K. Sachdev
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Corresponding author

Correspondence to Asim Tewari.

Additional information

Manuscript submitted July 21, 2011.

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Tewari, A., Vijayalakshmi, S., Tiwari, S. et al. Influence of Microstructure on Uniaxial Strain Localization in AA5754 Aluminum Sheets Produced by Various Processing Routes. Metall Mater Trans A 44, 2382–2398 (2013). https://doi.org/10.1007/s11661-012-1581-y

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  • DOI: https://doi.org/10.1007/s11661-012-1581-y

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