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Observations on the relationship between crystal orientation and the level of auto-tempering in an as-quenched martensitic steel |
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| Author: | Ramesh Babu, Shashank1; Nyyssönen, Tuomo2; Jaskari, Matias3; |
| Organizations: |
1Materials and Mechanical Engineering, Centre for Advanced Steels Research, University of Oulu, 90014 Oulun Yliopisto, Finland 2Outotec Research Center, Outotec Oy, Kuparitie 10, P.O. Box 69, FI-28101 Pori, Finland 3Kerttu Saalasti Institute, University of Oulu, Pajatie 5, FI-85500 Nivala, Finland
4Department of Materials, University of Oxford, Parks Road, Oxford OX1 3PH, UK
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| Format: | article |
| Version: | published version |
| Access: | open |
| Online Access: | PDF Full Text (PDF, 12.6 MB) |
| Persistent link: | http://urn.fi/urn:nbn:fi-fe2019112944917 |
| Language: | English |
| Published: |
Multidisciplinary Digital Publishing Institute,
2019
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| Publish Date: | 2019-11-29 |
| Description: |
AbstractAuto-tempering is a feature of the technologically important as-quenched low-carbon martensitic steels. The focus of this paper is on the morphology of the martensite and the orientation of the last forming untempered regions in relation to the earlier formed auto-tempered martensite in both small and large austenite grains. A low-carbon martensitic steel plate was austenitized for 24 h and quenched to room temperature. The resulting microstructure was characterized using electron microscopy and electron back scattered diffraction (EBSD) imaging. It was found that all the untempered regions in the martensitic microstructure were oriented with the plane normals {100} close to the thickness, or normal, direction of the plates. Variant analysis revealed that the untempered regions and the auto-tempered regions are part of the same packet. see all
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| Series: |
Metals |
| ISSN: | 2075-4701 |
| ISSN-E: | 2075-4701 |
| ISSN-L: | 2075-4701 |
| Volume: | 9 |
| Issue: | 12 |
| Article number: | 1255 |
| DOI: | 10.3390/met9121255 |
| OADOI: | https://oadoi.org/10.3390/met9121255 |
| Type of Publication: |
A1 Journal article – refereed |
| Field of Science: |
216 Materials engineering |
| Subjects: | |
| Funding: |
The authors are grateful for financial support from the European Commission under grant number
675715-MIMESIS-H2020-MSCA-ITN-2015, which is a part of the Marie Sklodowska-Curie Innovative Training Networks European Industrial Doctorate Programme. Sakari Pallaspuro thanks the funding from the Academy of Finland (# 311934). T.P. Davis is funded by the Clarendon Scholarship from the University of Oxford and United Kingdom’s Engineering and Physical Sciences Research Council Fusion Centre for Doctorial Training [EP/L01663X/1]. |
| EU Grant Number: |
(675715) MIMESIS - Mathematics and Materials Science for Steel Production and Manufacturing |
| Copyright information: |
© 2019 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/). |
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https://creativecommons.org/licenses/by/4.0/ |