| Title: |
Effect of deformation and grain size on austenite decomposition during quenching and partitioning of (high) silicon‑aluminum steels |
| Authors: |
Kantanen, P. (P.K.); Javaheri, V. (V.); Somani, M. (M.C.); Porter, D. (D.A.); Kömi, J. (J.I.) |
| Publisher Information: |
Elsevier |
| Publication Year: |
2021 |
| Collection: |
Jultika - University of Oulu repository / Oulun yliopiston julkaisuarkisto |
| Subject Terms: |
Bainite; Dilatometry; Grain size; Hardness; Martensite; Quenching and partitioning; Retained austenite |
| Description: |
The effect of austenite deformation on carbon partitioning and transformation to athermal and isothermal martensite, and bainite during quenching and partitioning (QP) is described for three steel compositions: Fe-0.3C-0.6Si-1.1Al, Fe-0.3C-1.0Si and Fe-0.3C-0.5Si-0.5Al. Microstructures were characterized using SEM-EBSD, TEM and XRD. Austenite decomposition kinetics was investigated using dilatometry. Deformation close to the no-recrystallization temperature refines the grain size, lowers the martensite start temperature and affects the stability of austenite during QP processing. The results in respect of dilatation measurements and retained austenite contents at room temperature corroborate the QP microstructures and their hardness and can help in designing optimal QP treatments for these novel steels. |
| Document Type: |
article in journal/newspaper |
| File Description: |
application/pdf |
| Language: |
English |
| Availability: |
http://urn.fi/urn:nbn:fi-fe20201222102651 |
| Rights: |
info:eu-repo/semantics/openAccess ; © 2020 The Author(s). Published by Elsevier Inc. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/). ; https://creativecommons.org/licenses/by-nc-nd/4.0/ |
| Accession Number: |
edsbas.D1BFD6E2 |
| Database: |
BASE |