Effect of asymmetrical rolling and annealing the mechanical response of an 1050-o sheet

Simões, Fábio; Sousa, Ricardo J. Alves de; Grácio, José J. A.; Barlat, Frédéric; Yoon, Jeong Whan

http://hdl.handle.net/10400.8/12974

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Effect of asymmetrical rolling and annealing on the mechanical response of an AA1050-O sheet.pdf	The asymmetrical rolling process has been studied as a way to promote intense shear deformations across the sheet thickness. These shear deformations may lead, given the proper conditions, to the development of shear texture components ({001}<110>, {111}<110> and {111}<112>) and also grain refinement. In this work, a 1050-O sheet is asymmetrically rolled and annealed. Conventional rolling is also performed, for comparison purposes. Shear texture components are obtained for the asymmetrically rolled specimens, and seem to be retained after annealing. Differences in mechanical response between asymmetrical and conventionally rolled specimens, as well as texture evolution after heat treatment processing are inferred based on experimental tensile and shear tests. Numerical simulations are used to help explain the differences found on experimental tests. It is proven that it is difficult to spread shear texture through the entire sheet thickness from a general asymmetric rolling process. Based on the fact, future research is discussed at closure.	1.43 MB	Adobe PDF	Download

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Authors

Simões, Fábio

Sousa, Ricardo J. Alves de

Grácio, José J. A.

Barlat, Frédéric

Yoon, Jeong Whan

Abstract(s)

The asymmetrical rolling process has been studied as a way to promote intense shear deformations across the sheet thickness. These shear deformations may lead, given the proper conditions, to the development of shear texture components ({001}<110>, {111}<110> and {111}<112>) and also grain refinement. In this work, a 1050-O sheet is asymmetrically rolled and annealed. Conventional rolling is also performed, for comparison purposes. Shear texture components are obtained for the asymmetrically rolled specimens, and seem to be retained after annealing. Differences in mechanical response between asymmetrical and conventionally rolled specimens, as well as texture evolution after heat treatment processing are inferred based on experimental tensile and shear tests. Numerical simulations are used to help explain the differences found on experimental tests. It is proven that it is difficult to spread shear texture through the entire sheet thickness from a general asymmetric rolling process. Based on the fact, future research is discussed at closure.

Keywords

Asymmetrical rolling Crystallographic texture Grain refinement Mechanical response

URI

http://hdl.handle.net/10400.8/12974

Citation

Simões, F.J.P., de Sousa, R.J.A., Grácio, J.J.A. et al. Effect of asymmetrical rolling and annealing the mechanical response of an 1050-o sheet. Int J Mater Form 2 (Suppl 1), 891–894 (2009). https://doi.org/10.1007/s12289-009-0625-3.