|About this Abstract
||2016 TMS Annual Meeting & Exhibition
||Phase Transformations and Microstructural Evolution
||Application of Dual-anneal Diffusion-multiple (DADM) Approach to Studies of Phase Transformations
||Changdong Wei, Siwei Cao, Ji-cheng Zhao
|On-Site Speaker (Planned)
A dual-anneal diffusion-multiple (DADM) approach has recently been developed and applied to study the phase transformations in a few Fe-based alloy systems. Wide ranges of compositions of solid solutions were generated by diffusion multiples annealed at an elevated temperature; and a subsequent annealing at a lower temperature resulted in formation of atlases of precipitates across the wide composition regions. Close examination of the microstructure atlases as a function of both composition and the second annealing duration reveals important precipitation kinetic features – some of which have not been reported before. The precipitation of sigma phase in the Fe-Cr-Ni and Fe-Cr-Mo systems and Chi phase in the Fe-Cr-Mo system will be taken as examples to illustrate the process using DADM for effective studies of solid-state phase transformations.
||Planned: A print-only volume