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Shear texture gradient in AA6061 aluminum alloy processed by accumulative roll bonding with high roll roughness

Journal Article


Abstract


  • The through thickness texture gradient in accumulative roll bonding (ARB) processed materials is largely

    dependent on the friction between the rolls and the sheet during deformation. In this study, AA6061 aluminum

    alloy was pre-heated to 200 C for 180 s and subjected to ARB deformation under dry conditions

    for up to 5 cycles using rolls with a high surface roughness. The imposition of high friction conditions during

    rolling resulted in a large texture gradient in the through thickness of the ARB strip. The bulk texture

    at the strip surface mainly comprised the Rotated Cube orientation for all cycles. The strip quarter thickness

    consisted of a combination of a Copper dominated b-fiber and the Rotated Cube orientation after 5

    cycles. The bulk texture at the strip center evolved from a predominantly Cube orientation in the fully

    annealed condition to one that comprised typical fcc rolling orientation components after 1 cycle. Thereafter,

    a gradual increase in the volume fraction of the Rotated Cube component was seen for up to 5

    cycles. As expected, the average bulk texture up to 5 cycles returned the highest volume fraction for

    the Rotated Cube orientation along with significantly smaller volume fractions for the ideal rolling orientations.

    The combination of high friction induced shear deformation and the unique alternating sandwich-

    type deformation pattern of ARB resulted in an increasingly uniform redistribution of shear-type

    orientation components across the strip thickness with increasing number of cycles.

Publication Date


  • 2014

Citation


  • Su, L., Lu, C., Gazder, A. A., Saleh, A. A., Deng, G., Tieu, K. & Li, H. (2014). Shear texture gradient in AA6061 aluminum alloy processed by accumulative roll bonding with high roll roughness. Journal of Alloys and Compounds, 594 12-22.

Scopus Eid


  • 2-s2.0-84893871822

Ro Metadata Url


  • http://ro.uow.edu.au/eispapers/2015

Has Global Citation Frequency


Number Of Pages


  • 10

Start Page


  • 12

End Page


  • 22

Volume


  • 594

Place Of Publication


  • Netherlands

Abstract


  • The through thickness texture gradient in accumulative roll bonding (ARB) processed materials is largely

    dependent on the friction between the rolls and the sheet during deformation. In this study, AA6061 aluminum

    alloy was pre-heated to 200 C for 180 s and subjected to ARB deformation under dry conditions

    for up to 5 cycles using rolls with a high surface roughness. The imposition of high friction conditions during

    rolling resulted in a large texture gradient in the through thickness of the ARB strip. The bulk texture

    at the strip surface mainly comprised the Rotated Cube orientation for all cycles. The strip quarter thickness

    consisted of a combination of a Copper dominated b-fiber and the Rotated Cube orientation after 5

    cycles. The bulk texture at the strip center evolved from a predominantly Cube orientation in the fully

    annealed condition to one that comprised typical fcc rolling orientation components after 1 cycle. Thereafter,

    a gradual increase in the volume fraction of the Rotated Cube component was seen for up to 5

    cycles. As expected, the average bulk texture up to 5 cycles returned the highest volume fraction for

    the Rotated Cube orientation along with significantly smaller volume fractions for the ideal rolling orientations.

    The combination of high friction induced shear deformation and the unique alternating sandwich-

    type deformation pattern of ARB resulted in an increasingly uniform redistribution of shear-type

    orientation components across the strip thickness with increasing number of cycles.

Publication Date


  • 2014

Citation


  • Su, L., Lu, C., Gazder, A. A., Saleh, A. A., Deng, G., Tieu, K. & Li, H. (2014). Shear texture gradient in AA6061 aluminum alloy processed by accumulative roll bonding with high roll roughness. Journal of Alloys and Compounds, 594 12-22.

Scopus Eid


  • 2-s2.0-84893871822

Ro Metadata Url


  • http://ro.uow.edu.au/eispapers/2015

Has Global Citation Frequency


Number Of Pages


  • 10

Start Page


  • 12

End Page


  • 22

Volume


  • 594

Place Of Publication


  • Netherlands