Mechanical and microstructural characterization of 6061 aluminum alloy strips severely deformed by Dissimilar Channel Angular Pressing

Date

2011-04-01

Author

Tan, Euren
KİBAR, Alp Aykut
Gür, Cemil Hakan

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Dissimilar Channel Angular Pressing (DCAP) is a severe plastic deformation technique to improve the mechanical properties of flat products by producing ultrafine grains. In this study, the changes in the microstructure and mechanical properties of 6061 Al-alloy strips deformed by various numbers of DCAP passes were investigated. Some DCAPed samples were also held at 200 degrees C and 350 degrees C to investigate the effect of post-annealing. Mechanical properties were determined by hardness and tension tests; and microstructural changes were investigated by TEM analysis. Up to a critical level of plastic strain, remarkable improvements have been observed in the strength and hardness of the severely deformed strips; and the improvements have been explained by variations in grain size, dislocation structure, and formation of subgrains.

Subject Keywords

Mechanical Engineering, General Materials Science, Mechanics of Materials, Condensed Matter Physics

URI

https://hdl.handle.net/11511/39312

Journal

MATERIALS CHARACTERIZATION

DOI

https://doi.org/10.1016/j.matchar.2011.01.016

Collections

Department of Metallurgical and Materials Engineering, Article

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Citation Formats

E. Tan, A. A. KİBAR, and C. H. Gür, “Mechanical and microstructural characterization of 6061 aluminum alloy strips severely deformed by Dissimilar Channel Angular Pressing,” MATERIALS CHARACTERIZATION, pp. 391–397, 2011, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/39312.