Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1624623 | Journal of Alloys and Compounds | 2008 | 5 Pages |
Abstract
Supersaturated Mg–9Al–1Zn (AZ91) specimens were annealed at 220 °C for different time up to 24 h with and without a 10 T static magnetic field. Quantitative metallurgraphy indicated that the macroscopic kinetics of the discontinuous precipitation reaction became slow under the magnetic field, and both the nucleation rate and the mean growth rate of discontinuous precipitation nodules decreased. The volume percentage of discontinuous precipitation finally transformed has also decreased under the magnetic field. Such effects were supposed to result from the retarded solute diffusion under the field. β lamellae inside precipitation nodules were found to have a smaller interlamellar spacing and grow in a more regular manner under the field.
Related Topics
Physical Sciences and Engineering
Materials Science
Metals and Alloys
Authors
Zhifeng Li, Jie Dong, Xiaoqing Zeng, Cen Lu, Wenjiang Ding, Zhongming Ren,