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In thisAl alloy paper presents an investigation of the anisotropy in plastic properties of AA6061 alloy in sheet form. Initial textureTexture measurementsMeasurements of the supplied material show that the major textureTexture component is {100}<001>. Uniaxial tensile tests in the rolling, 45° to the rolling direction, and transverse directions were performed to quantify the anisotropy in macroscopic plastic behavior of this material. Using Digital Image Correlation (DIC) measurementsMeasurements were used to estimate the Lankford coefficientsLankford coefficient. Despite the fact of its strong cubic textureTexture, the r-values of this material are close to 0.5. The observed mechanical behavior is modeled using the classical Hill’s criterion for which the anisotropy coefficients can be obtained using analytical formulas in terms of only flow stresses, or alternatively in terms of only Lankford coefficientsLankford coefficient. The predictive capabilities of Hill criterion calibrated using the two analytical procedures are compared for both laboratoryOrthotropy tests and forming of a cylindrical cup.

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Experimental Characterization and Modeling of an AA6061 Al Alloy

  • 会议论文

  • 发表日期：

    2025年

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  • Benoit Revil-Baudard,
  • Luigi Ciccia,
  • Oana Cazacu

摘要

In thisAl alloy paper presents an investigation of the anisotropy in plastic properties of AA6061 alloy in sheet form. Initial textureTexture measurementsMeasurements of the supplied material show that the major textureTexture component is {100}<001>. Uniaxial tensile tests in the rolling, 45° to the rolling direction, and transverse directions were performed to quantify the anisotropy in macroscopic plastic behavior of this material. Using Digital Image Correlation (DIC) measurementsMeasurements were used to estimate the Lankford coefficientsLankford coefficient. Despite the fact of its strong cubic textureTexture, the r-values of this material are close to 0.5. The observed mechanical behavior is modeled using the classical Hill’s criterion for which the anisotropy coefficients can be obtained using analytical formulas in terms of only flow stresses, or alternatively in terms of only Lankford coefficientsLankford coefficient. The predictive capabilities of Hill criterion calibrated using the two analytical procedures are compared for both laboratoryOrthotropy tests and forming of a cylindrical cup.