Continuous directional solidification method for preparing iron alloy - copper nanoparticles situ

The present invention belongs to the field of metal material, to a copper nanoparticle situ - continuous unidirectional solidification method for preparing iron alloy. Process, for a graphite crucible placed within the cleaning material impurity, the vacuum furnace was evacuated to 10-3Pa after, heating was started melting. After the starting material was completely melted into high purity argon gas, to maintain a melt temperature of 1200 ℃ ± 5 ℃ ~ 1300 ℃ ± 5 ℃, while open cooling system, cooling water is 900L / h, the following primers continuous directional solidification apparatus to 1.5 casting speed -3mm / 10s of the slab preparation. The techniques of this invention may be implemented in continuous unidirectional solidification process and the collective produced directly coherent or semi-coherent interface nanoparticles in situ, and the particles are uniformly dispersed in the matrix distribution of these nano.