Szczegóły publikacji
Opis bibliograficzny
The microstructure and properties evolution in $Fe–(1.5-2.5)%Mn-0.8%C$ systems during step sintering / Kamila Teter-Czeryna, Paula Psiuk, Monika TENEROWICZ-ŻABA, Maciej SUŁOWSKI // NDT Days ; ISSN 2603-4018. — 2020 — vol. 3 iss. 2, s. 80–88. — Bibliogr. s. 88, Abstr.
Autorzy (4)
Słowa kluczowe
Dane bibliometryczne
| ID BaDAP | 131161 |
|---|---|
| Data dodania do BaDAP | 2020-11-26 |
| Tekst źródłowy | URL |
| Rok publikacji | 2020 |
| Typ publikacji | artykuł w czasopiśmie |
| Otwarty dostęp |  |
| Creative Commons | |
| Czasopismo/seria | NDT Days |
Abstract
The aim of the study was to examine how the microstructure changes during heating of Fe-Mn-C system (stepsintering). Mixtures of powders containing Fe (NC 100.24 iron powder), 1.5 or 2.5%Mn (added in the form of ferromanganese – 77%Mn, 1.3%C) and 0.8%C (added in the form of ultrafine graphite) were prepared in Turbula T2F mixer for 30 minutes. For the investigation of microstructural evolution of Fe-Mn-C system, from each chemical composition, batches of 5 or 10 samples were prepared in accordance to PN EN ISO 2740 standard. Single-action pressing at 660 MPa resulted in green densities in the range of 6.53-6.60 g/cm3. The procedure of investigations was as follows: samples were heated to the different step temperature (varied from 750°C to 1250°C) with heating rate 60 °C/min., then isothermally sintered at step temperature for 5 min., and finally cooled to the room temperature with cooling rate ~66 °C/min. After step-sintering, Fe-Mn-C samples were mechanically (tensile) tested. Following tensile tests, metallographic observations of the samples were performed. Based on the results obtained, the tensile strength increasing with the increasing the step temperature. The metallographic observation showed the microstructure evolution – with increasing the step temperature, decreasing of porosity was observed.
