Affiliation:
1. Consultant Maryville Tennessee USA
2. Key Laboratory for Light‐weight Materials Nanjing Tech University Nanjing China
3. International Joint Laboratory for Light Alloys Departments of Materials Science and Engineering Chongqing University Chongqing China
4. Department of Civil and Mechanical Engineering Technical University of Denmark Kongens Lyngby Denmark
5. Department of Engineering and Physics Karlstad University Karlstad Sweden
Abstract
AbstractWhen analyzing recrystallization kinetics data, it is extremely important to use a model, which has appropriate assumptions for nucleation and growth, including spatial distribution of nuclei, nucleation rate, growth rate, and directionality. In the present work, we reveal how advanced microstructural path modeling (MPM) can successfully fit kinetics data for the complex recrystallization of two different industrial aluminum alloys. Simpler models have failed to fit the data over the entire recrystallization period. The new model allows for spatially clustered nucleation and for different growth rates in different sample directions, whereby the grains evolve with an aspect ratio different from 1. Based on the MPM analysis, the specific nucleation and growth parameters as well as the recrystallized grain sizes are deduced, and the recrystallization characteristics of the two alloys are compared. The work demonstrates the power of quantitative metallography and the wealth of recrystallization information that may be obtained from MPM modeling of such stereological data.