Abstract
Friction stir processing (FSP) is an emerging grain refinement technique for magnesium alloys. in this study, a cast AZ91 alloy was processed by a single-pass FSP to achieve an average grain size of ∼6 μm in the nugget zone. the FSP is found to introduce texture in the alloy due to preferred alignment of basal poles in the processing direction. the mechanical behavior is significantly influenced by texture. after FSP, the alloy was aged at different temperatures and times for continuous and discontinuous precipitation of β-Mg17Al12. a high anisotropy in yield stress is observed in the processing and transverse direction after FSP. It is shown that this anisotropy can be minimized under optimum ageing conditions. the observed yield asymmetry is correlated with the texture variation after FSP. the role of β-Mg17Al12 precipitates in reducing the yield anisotropy is also discussed. © (2012) Trans Tech Publications, Switzerland.
Recommended Citation
V. Jain et al., "Directional Anisotropy in the Mechanical Behavior of Friction Stir Processed and Aged AZ91 Alloy," Materials Science Forum, vol. 702 thru 703, pp. 64 - 67, Trans Tech Publications, Jan 2012.
The definitive version is available at https://doi.org/10.4028/www.scientific.net/MSF.702-703.64
Department(s)
Materials Science and Engineering
Keywords and Phrases
AZ91; Friction stir processing; Textural anisotropy
International Standard Book Number (ISBN)
978-303785294-1
International Standard Serial Number (ISSN)
1662-9752; 0255-5476
Document Type
Article - Conference proceedings
Document Version
Citation
File Type
text
Language(s)
English
Rights
© 2024 Trans Tech Publications, All rights reserved.
Publication Date
01 Jan 2012
