Author
Shojaei, Kambiz, Sajadifar, Seyed Vahid, Yapıcı, Güney Güven
Publication Date
2016-07-18
Publication Place
-
Elsevier
Subject
7075 aluminum alloy, Plastic deformation, High temperature forming, Rate sensitivity, Cold work, Fracture morphology
Type
Periodical
Language
English
Digital
Yes
Manuscript
No
Library
Özyeğin University
Library Asset ID
0921-5093
Record ID
4358ec53-7087-47b1-a542-8b013d58eba5
Library Location
Mechanical Engineering
Date
2016-07-18
Notes
Due to copyright restrictions, the access to the full text of this article is only available via subscription.
Sample Text
In the present study, elevated temperature deformation behavior and microstructural evolution of 7075 aluminum alloy at annealed and cold rolled conditions were examined. Isothermal uniaxial tensile tests at a temperature range of 200–350 °C and at a strain rate range of 0.001–0.1 s−1 were conducted to investigate the effects of deformation parameters on the mechanical behavior. High temperature flow was noticeably strain rate sensitive especially for the rolled condition. Cold work was shown to have a remarkable influence on increasing the peak stress up to 250 °C. At and above this temperature the rolled microstructure enabled higher ductility reaching over 50% accompanied by a stress plateau. The ductility drop at 350 °C at the slowest deformation rate was attributed to impurity rich regions with possible formation of secondary phases due to dynamic precipitation.
DOI
10.1016/j.msea.2016.05.113
Cilt
670
