Simulation of volumetric deformation in the process of hot compaction of composite infiltrated Fe-Cu
| Autor: | S. N. Sergeenko |
|---|---|
| Rok vydání: | 2021 |
| Předmět: | |
| Zdroj: | Journal of Physics: Conference Series. 1990:012006 |
| ISSN: | 1742-6596 1742-6588 |
| DOI: | 10.1088/1742-6596/1990/1/012006 |
| Popis: | Annotation To describe the regularities of the compaction of an infiltrated Fe-Cu composite material in the process of hot compaction, a criterion is proposed that is determined by the volumetric deformation of the pores of a refractory metal (iron) frame associated with plastic deformation of a compact material surrounding the pore. In this work, a multiplicative model of the influence of the values of technological factors (the content of the infiltrate, the initial relative density of the refractory base, the reduced work of compaction) on the volumetric deformation of the pores of the iron frame in the process of hot compaction of the infiltrated composite material is built. A hypothesis is formulated for compaction of an iron frame by accommodation of powder particles in the process of hot compaction of a Fe-Cu composite material with an increased content of infiltrate. It has been established that the volumetric deformation of the iron base is determined by the course of competing processes - decompaction due to the effect of “copper growth” of the Fe-Cu composite material, as well as the disintegration of the powder base associated with the squeezing out of the liquid phase of the infiltrate along the unformed interparticle surfaces, and compaction due to the suppression of decompaction under the action of external pressure during hot compaction of the infiltrated composite material. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|