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Implications of accelerated solidification rates seen in belt casting on precipitation in Nb bearing steels
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Slater, Carl, Kostryzhev, Andrii, Marenych, Olexandra and Davis, Claire (2018) Implications of accelerated solidification rates seen in belt casting on precipitation in Nb bearing steels. Steel Research International, 89 (3). 1700358. doi:10.1002/srin.201700358 ISSN 1611-3683.
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Official URL: http://dx.doi.org/10.1002/srin.201700358
Abstract
High temperature confocal microscopy (using cooling rates of 1 and 20 °C s−1) has been used in conjunction with segregation modeling (for cooling rates of 0.1–100 °C s−1) to understand the implications that high cooling rates, representative of that seen for belt casting, has on compositional inhomogeneity and precipitation in high strength low alloy steels. Due to the increased level of segregation (and reduced back diffusion) precipitates are predicted, and shown, to form in the interdendritic solute rich regions at temperatures higher than would be expected under equilibrium conditions at the higher cooling rate. This results in a larger volume fraction of precipitates in samples held at 1000 °C after being cooled at 20 °C s−1 compared to those cooled at 1 °C s−1.
| Item Type: | Journal Article | ||||||||||
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| Divisions: | Faculty of Science, Engineering and Medicine > Engineering > WMG (Formerly the Warwick Manufacturing Group) | ||||||||||
| Journal or Publication Title: | Steel Research International | ||||||||||
| Publisher: | Wiley | ||||||||||
| ISSN: | 1611-3683 | ||||||||||
| Official Date: | March 2018 | ||||||||||
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| Volume: | 89 | ||||||||||
| Number: | 3 | ||||||||||
| Article Number: | 1700358 | ||||||||||
| DOI: | 10.1002/srin.201700358 | ||||||||||
| Status: | Peer Reviewed | ||||||||||
| Publication Status: | Published | ||||||||||
| Access rights to Published version: | Restricted or Subscription Access | ||||||||||
| Description: | ASRC - ASSURE2 |
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| Date of first compliant deposit: | 28 March 2018 | ||||||||||
| RIOXX Funder/Project Grant: |
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