Szczegóły publikacji
Opis bibliograficzny
Dilatometric investigations of phase transformations at heating and cooling of hardened, unalloyed, high-carbon steels / J. PACYNA // Journal of Achievements in Materials and Manufacturing Engineering ; ISSN 1734-8412. — 2011 — vol. 46 iss. 1, s. 7–17. — Bibliogr. s. 16–17, Abstr. — 19thInternational scientific conference on Achievements in Mechanical and Materials Engineering AMME'2011 : 29thMay–1stJune 2011, Gliwice–Wrocław, Poland. — Gliwice : International OCSCO World Press, 2011
Autor
Słowa kluczowe
Dane bibliometryczne
| ID BaDAP | 59653 |
|---|---|
| Data dodania do BaDAP | 2011-06-11 |
| Tekst źródłowy | URL |
| Rok publikacji | 2011 |
| Typ publikacji | referat w czasopiśmie |
| Otwarty dostęp |  |
| Creative Commons | |
| Czasopismo/seria | Journal of Achievements in Materials and Manufacturing Engineering |
Abstract
Purpose: The reason for writing this paper was to describe the kinetics of phase transformations during continuous heating from hardened state and subsequent cooling of unalloyed high carbon steel. Design/methodology/approach: Dilatometric investigations were performed using a DT 1000 dilatometer of a French company Adamel. Samples after quenching and quenching and sub-quenching in liquid nitrogen (-196 °C) were heated up 700 °C at the rate of 0.05 °C/s and subsequent cooled to room temperature at the rate of 0.05 °C/s. Findings: Regardless of heating the hardened high-carbon steel to 700 °C, a small fraction of the retained austenite remained in its structure, and was changing into fresh martensite only during cooling in the temperature range: 280°C-170°C. Research limitations/implications: Schematic presentation of the differential curve of tempering of the hardened high-carbon, unalloyed steel illustrating the phase transformations occurring during heating from hardened state. Practical implications: An observation, that a small fraction of the retained austenite remained in the structure of tempered high-carbon steel, indicates that even unalloyed steel should be tempered two times. Originality/value: Detailed descriptions of kinetics phase transformations during heating from hardened state of unalloyed high carbon steel.
