Localized Deformation of Equal Channel Angular Extruded Aluminum

Fuqian Yang; Lingling Peng; Kenji Okazaki

doi:10.4028/www.scientific.net/MSF.475-479.425

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HomeMaterials Science ForumMaterials Science Forum Vols. 475-479Localized Deformation of Equal Channel Angular...

Localized Deformation of Equal Channel Angular Extruded Aluminum

Abstract:

The localized deformation behavior of annealed Al and Al severely deformed by ECAE process was determined by using microindentation test. Using the method proposed by Tabor, the indentation stress-strain curves of annealed Al and as-ECAE deformed Al were constructed, which display similar work-hardening behavior. For annealed Al, the altitude of the indentation stressstrain curves is a function of the indenter size. A master curve then is constructed, which displays different work-hardening behavior. For the ECAE deformed Al, the indentation stress-strain curves are independent of the indenter size, suggesting that the microstructure inside the as-ECAE deformed Al is different from the annealed Al.

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Periodical:

Materials Science Forum (Volumes 475-479)

Pages:

425-428

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.475-479.425

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Online since:

January 2005

Authors:

Fuqian Yang, Lingling Peng, Kenji Okazaki

Keywords:

Indentation, Master Curve, Severe Deformation, Size Effect

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