Szczegóły publikacji
Opis bibliograficzny
Early martensitic transformation in a 0.74C–1.15Mn–1.08Cr high carbon steel / Thomas Kohne, Tuerdi Maimaitiyili, Aimo WINKELMANN, Emad Maawad, Peter Hedström, Annika Borgenstam // Metallurgical and Materials Transactions. A, Physical Metallurgy and Materials ; ISSN 1073-5623. — 2022 — vol. 53 iss. 8, s. 3034–3043. — Bibliogr. s. 3042–3043, Abstr. — Publikacja dostępna online od: 2022-06-04
Autorzy (6)
- Kohne Thomas
- Maimaitiyili Tuerdi
- AGHWinkelmann Aimo
- Maawad Emad
- Hedström Peter
- Borgenstam Annika
Dane bibliometryczne
| ID BaDAP | 141059 |
|---|---|
| Data dodania do BaDAP | 2022-07-15 |
| Tekst źródłowy | URL |
| DOI | 10.1007/s11661-022-06724-z |
| Rok publikacji | 2022 |
| Typ publikacji | artykuł w czasopiśmie |
| Otwarty dostęp |  |
| Creative Commons | |
| Czasopismo/seria | Metallurgical and Materials Transactions, A, Physical Metallurgy and Materials Science |
Abstract
The martensitic transformation in a high carbon steel was studied by a new experimental approach focusing on the nucleation and growth as well as the variant pairing of the early-formed martensite. A mixed microstructure with tempered early-formed martensite and fresh later-formed martensite was achieved by a heat treatment with an isothermal hold below the martensite start temperature. In-situ high-energy X-ray diffraction showed no further transformation of austenite to ferrite/martensite during the isothermal hold. The tempered early-formed martensite was characterized with a combination of light optical microscopy and local tetragonality determination by electron backscatter diffraction. The characterization allowed qualitative as well as quantitative analysis of the tempered early-formed martensite with regard to the prior austenite grain boundaries (PAGB) and variant pairing. The early-formed martensite was shown to grow predominantly along the PAGBs and clustering was observed indicating an autocatalytic nucleation mechanism. The variant pairing of the early-formed martensite had a stronger plate character compared to the later-formed martensite.
