An Analytical Model for Stress-Induced Grain Growth in the Presence of Both Second-Phase Particles and Solute Segregation at Grain Boundaries
Abstract
A theoretical framework that incorporates the influence of second-phase particles and solute segregation at grain boundaries (GBs) on stress-induced GB migration and grain rotation is formulated in the present paper. In our work, we modified the well-established Cahn-Taylor model to account for the drag stresses generated by second-phase particles and by solute atoms segregated at GBs. The theoretical framework is then implemented to rationalize GB migration and grain rotation using experimental data from a previously published study on stress-induced grain growth in the presence of both second-phase particles and solute segregation at GBs. The calculated grain growth results are generally consistent with the experimental data, providing support to the proposed theoretical model, despite the various assumptions involved. Moreover, the influence of second-phase particles and solute segregation at GBs on GB migration and grain rotation was also investigated using the model, and our results suggest that both second-phase particles and solute atoms segregated at GBs reduce the velocities of GB migration and grain rotation as compared to those in the case of high-purity Al.
Recommended Citation
Y. Lin et al., "An Analytical Model for Stress-Induced Grain Growth in the Presence of Both Second-Phase Particles and Solute Segregation at Grain Boundaries," Acta Materialia, vol. 82, pp. 304 - 315, Elsevier Ltd, Jan 2015.
The definitive version is available at https://doi.org/10.1016/j.actamat.2014.08.059
Department(s)
Materials Science and Engineering
International Standard Serial Number (ISSN)
1359-6454
Document Type
Article - Journal
Document Version
Citation
File Type
text
Language(s)
English
Rights
© 2015 Elsevier Ltd, All rights reserved.
Publication Date
01 Jan 2015
