Abstract
The paper studies a bimodal metal powder composition designed to prepare feedstock for powder injection molding, as well as microstructure and porosity of sintered pats. Two kinds of metal powder compositions are used, in particular, a mixture of micro- and nanopowders and a bimodal powder prepared with dispersion of steel wire. The feedstock is prepared by mixing a bimodal metal powder composition with acetylacetone and paraffin wax. The microstructure of the debound parts is observed by scanning electron microscopy. The sintered parts are characterized by density measurements and metallographic analysis. The technique of the metal powder composition proves to affect the characteristics of sintered parts. Nanoparticles are shown in the interstitial spaces among the microparticles upon mixing micro- and nanopowders, but the regular distribution of nanoparticles on the surface of microparticles is observed in the bimodal powder providing the reduction of the porosity of sintered parts and increasing the density to the proper density of steel.
| Original language | English |
|---|---|
| Title of host publication | Mechanics, Resource and Diagnostics of Materials and Structures, MRDMS 2017 |
| Subtitle of host publication | Proceedings of the 11th International Conference on Mechanics, Resource and Diagnostics of Materials and Structures |
| Publisher | American Institute of Physics Inc. |
| Volume | 1915 |
| ISBN (Electronic) | 9780735416079 |
| DOIs | |
| Publication status | Published - 12 Dec 2017 |
| Event | 11th International Conference on Mechanics, Resource and Diagnostics of Materials and Structures, MRDMS 2017 - Ekaterinburg, Russian Federation Duration: 11 Dec 2017 → 15 Dec 2017 |
Conference
| Conference | 11th International Conference on Mechanics, Resource and Diagnostics of Materials and Structures, MRDMS 2017 |
|---|---|
| Country | Russian Federation |
| City | Ekaterinburg |
| Period | 11.12.17 → 15.12.17 |
ASJC Scopus subject areas
- Physics and Astronomy(all)