Journal
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
Volume 527, Issue 7-8, Pages 1962-1969Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/j.msea.2009.11.029
Keywords
Friction stir welding; Aluminum alloy; Electron backscatter diffraction; Recrystallization; Texture; Microstructure
Categories
Funding
- Japanese Ministry of Education, Science, Sports and Culture
- Japan Society for the Promotion of Science
- Tohoku University for providing a scientific fellowship
Ask authors/readers for more resources
A stop-action technique was employed to study the grain structure and texture development during friction stir welding of thin 6016 aluminum sheets. The microstructural evolution ahead of the tool pin was found to be a complex process involving geometrical effects of strain as well as simultaneous development of continuous and discontinuous recrystallizations. At the circumference of the pin, the material flow was shown to be governed by the simple shear deformation induced by the rotating pin, which led to the formation of a pronounced {1 1 2} < 1 1 0 > simple shear texture. Beyond the pin, the material experienced additional hot deformation, possibly caused by the influence of the tool shoulder, and limited static annealing during the weld cooling cycle. As a result, a well-recrystallized grain structure having a characteristic {1 0 0} < 1 0 0 > cube texture finally developed in the stir zone. (C) 2009 Elsevier B.V. All rights reserved.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available