Szczegóły publikacji
Opis bibliograficzny
The kinetics of phase transformations during the tempering of HS18-0-1 high-speed steel / P. BAŁA, J. PACYNA, J. KRAWCZYK // Journal of Achievements in Materials and Manufacturing Engineering ; ISSN 1734-8412. — 2006 — vol. 19 iss. 1, s. 19–25. — Bibliogr. s. 25, Abstr.
Autorzy (3)
Słowa kluczowe
Dane bibliometryczne
| ID BaDAP | 30264 |
|---|---|
| Data dodania do BaDAP | 2006-11-24 |
| Tekst źródłowy | URL |
| Rok publikacji | 2006 |
| Typ publikacji | artykuł w czasopiśmie |
| Otwarty dostęp |  |
| Creative Commons | |
| Czasopismo/seria | Journal of Achievements in Materials and Manufacturing Engineering |
Abstract
Purpose: The reasons for write this paper was described the kinetics of phase transformations during tempering of hardened HS18-0-1 high-speed steel. Moreover, the influence of the heating rate on the retained austenite transformation. Design/methodology/approach: CHT diagram was with dilatometric method determined. The influence of the heating rate on the retained austenite transformation as well as the results of threefold tempering at 560ºC were also determined. The microstructure development of investigated steel was observed using SEM, TEM and optical microscopy. Findings: During heating of the samples of the quenched HS18-0-1 steel the occurrence of 4 principal transformations was determined. These are: precipitation of ε carbide, M3C precipitation, transformation of retained austenite and precipitation of alloy carbides of MC and M2C type. It was shown that in the quenched high-speed steels a part of retained austenite is already transformed during heating for tempering, but its significant part is transformed only during cooling after tempering as well as during consecutive heatings for temperings. Practical implications: The obtained CHT diagram may be used to design new technologies of tempering of this steel. Originality/value: The new CHT diagram
