A. Kaijalainen et al 2018 IOP Conf. Ser.: Mater. Sci. Eng. 375 012026 Development of crystallographic texture under plane and shear strain in ultrahigh-strength strip steels |
|
Author: | Kaijalainen, A.1; Javaheri, V.1; Lindell, D.2; |
Organizations: |
1Materials and Production Engineering, University of Oulu, Finland 2Swerea KIMAB, Stockholm, Sweden |
Format: | article |
Version: | published version |
Access: | open |
Online Access: | PDF Full Text (PDF, 2.3 MB) |
Persistent link: | http://urn.fi/urn:nbn:fi-fe2018062826579 |
Language: | English |
Published: |
IOP Publishing,
2018
|
Publish Date: | 2018-06-28 |
Description: |
AbstractThe effect of centerline and subsurface microstructures on the crystallographic texture of three 8 mm thick low-alloyed hot-rolled and direct-quenched ultrahigh-strength strip steels with yield strengths in the range 800–1100 MPa has been investigated. Detailed microstructural features were studied using LCSM, FESEM, FESEM-EBSD. In addition textures and crystallographic features were analyzed using Matlab combined with MTEX software. Rolling to lower finish rolling temperatures increased austenite pancaking leading to the formation of ferritic/granular bainitic and the upper bainitic microstructures at the subsurface. In addition, increased austenite pancaking was found to increase the intensities of ~{554}<225>α, ~{112}<110>α and ~{112}<131>α texture components at the centerline and ~{112}<111>α and ~{110}<112>α/<111>α texture components in the surface layers, especially in upper bainitic microstructures. Parent austenite reconstruction shows that crystallographic texture at the centerline derived from {112}<111>γ and {110}<112>γ and the subsurface the shear texture components derived from the {112}<110>γ and {111}<112>γ components, as expected. The Matlab reconstruction code was found to work well for martensitic and upper bainitic morphologies even with the highly pancaked prior austenite structure. However, it was less precise for granular bainite and ferrite. see all
|
Series: |
IOP conference series. Materials science and engineering |
ISSN: | 1757-8981 |
ISSN-E: | 1757-899X |
ISSN-L: | 1757-8981 |
Volume: | 375 |
Article number: | 012026 |
DOI: | 10.1088/1757-899X/375/1/012026 |
OADOI: | https://oadoi.org/10.1088/1757-899X/375/1/012026 |
Host publication: |
18th International Conference on Textures of Materials (ICOTOM-18) 6–10 November 2017, St George, Utah, USA |
Conference: |
18th International Conference on Textures of Materials (ICOTOM-18) 6–10 November 2017, St George, Utah, USA |
Type of Publication: |
A4 Article in conference proceedings |
Field of Science: |
216 Materials engineering |
Subjects: | |
Copyright information: |
Content from this work may be used under the terms of the Creative Commons Attribution 3.0 licence. Any further distribution of this work must maintain attribution to the author(s) and the title of the work, journal citation and DOI. Published under licence by IOP Publishing Ltd. |
https://creativecommons.org/licenses/by/3.0/ |