Recent Developments on Discontinuous Precipitation

[摘要] The discontinuous precipitation (DP) belongs to a group of diffusive solid state phase transformations during which the formation of a new phase is heterogeneous and limited to a migrating reaction front (RF). The use of analytical electron microscopy provided reliable information that there is no differences in the diffusion rate at the stationary grain boundary and moving RF of DP reaction. On the other hand, the use of “in situ” transmission electron microscopy observations indicated the importance of stop-go motion or oscillatory movement of the RF.

[学科分类] 金属与冶金

[关键词] Industrial Chemistry;Substances and Products;Materials Sciences;Materials Processing