Journal article

Influence of plastic deformation gradients at room temperature on precipitation kinetics and mechanical properties of high-strength aluminum alloys



Publication Details
Authors:
Scharifi, E.; Danilenko, A.; Weidig, U.; Steinhoff, K.

Publication year:
2019
Journal:
International Journal of Engineering Research and Applications
Pages range :
42-48
Journal acronym:
IJERA
Volume number:
9
Issue number:
6
ISSN:
2248-9622
eISSN:
2248-9622
DOI-Link der Erstveröffentlichung:


Abstract

This work focuses on the influence of cold deformation gradients on precipitation kinetics and the resulting mechanical properties of two different high-strength aluminum sheet materials, AA6082 and AA7075. For this purpose, the investigated materials were solution heat treated and formed to different strain levels ranging from 0-18% in the supersaturated state after quenching in water. The respective strengthening behavior was reflected by uniaxial tensile tests and Vickers hardness measurement. Optical strain measurement based on the digital image correlation method was further used to determine and characterize the material-dependent local plastic deformation. It was found that.......



Keywords
Heat treatment, High-strength aluminum alloys, Precipitation hardening, W-temper forming


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