Porosity and Microstructure Iron-Based Graded Materials Sintered by Spark Plasma Sintering and the Conventional Method
| Autor: | Dariusz Mierzwiński, Piotr Putyra, Krzysztof Zarębski |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2019 |
| Předmět: |
lcsh:TN1-997
business.product_category Materials science porosity Diffusion microstructure Spark plasma sintering Sintering 02 engineering and technology 010402 general chemistry 01 natural sciences General Materials Science Graphite Composite material Porosity lcsh:Mining engineering. Metallurgy Pressing powder metallurgy (PM) sintering functional gradient materials (FGM) Metals and Alloys spark plasma sintering (SPS) 021001 nanoscience & nanotechnology Microstructure 0104 chemical sciences ferrous steels Die (manufacturing) 0210 nano-technology business |
| Zdroj: | Metals, Vol 9, Iss 2, p 264 (2019) Metals Volume 9 Issue 2 |
| ISSN: | 2075-4701 |
| Popis: | Using PNC-60 powder with the addition of graphite, cylindrical products characterized by different compositions of core and outer layers were made. Some compacts were sintered via the conventional process, while others were subjected to the spark plasma sintering method (SPS) at different times and temperatures. The gradient microstructure was obtained in the transition zone by mixing powders during die filling, followed by pressing and diffusion during sintering. The effect of sintering parameters on the nature of the gradient zone and the morphology of the pores was shown. After conventional sintering, the gradient zone was wider than it was after SPS. Via SPS, the short sintering time confined the diffusion to a local range, making its influence on the gradient structure negligible. Differences in the microstructure were confirmed by functional description. |
| Databáze: | OpenAIRE |
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