Abstract
The low-angle grain boundary (LAGB) stability in an ultrafine-grained (UFG) Al alloy during monotonic loading was investigated by orientation imaging microscopy (OIM). the experiments show that boundaries with misorientation below ∼2.5 deg are stable, while boundaries with misorientation between 2.5 and 15 deg are unstable. Similar results were observed during cyclic loading of UFG Al alloy. This behavior was rationalized using the nonequilibrium thermodynamics concept. on the other hand, it is postulated that the grain boundary behavior in microcrystalline alloy is different because of the larger dislocation mean free path. © 2011 the Minerals, Metals & Materials Society and ASM International.
Recommended Citation
P. S. De and R. S. Mishra, "Grain Boundary Behavior in an Ultrafine-grained Aluminum Alloy," Metallurgical and Materials Transactions A: Physical Metallurgy and Materials Science, vol. 42, no. 12, pp. 3558 - 3561, Springer; ASM International, Dec 2011.
The definitive version is available at https://doi.org/10.1007/s11661-011-0912-8
Department(s)
Materials Science and Engineering
International Standard Serial Number (ISSN)
1073-5623
Document Type
Article - Conference proceedings
Document Version
Citation
File Type
text
Language(s)
English
Rights
© 2024 Springer; ASM International, All rights reserved.
Publication Date
01 Dec 2011
