Abstract
This paper examines the impact of coiling temperature and duration on the phase transformation and precipitation behavior of a low carbon and low niobium direct strip cast steel. Coiling was performed at three carefully chosen temperatures: (1) in the ferrite (600°C), (2) during the austenite decomposition (700°C) and (3) in the austenite (850°C). The coiling conditions were found to strongly affect the final microstructure and hardness response, thus highlighting the necessity to judiciously design the coiling treatment. Optical microscopy, and scanning and transmission electron microscopy were used to characterize the microstructural constituents (polygonal ferrite, bainite and pearlite) and the NbC precipitates. Vickers macrohardness measurements are utilized to quantify the mechanical properties. The differences in hardening kinetics for the three different temperatures are shown to come from a complex combination of strengthening contributions.
Original language | English |
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Title of host publication | PTM 2015 - Proceedings of the International Conference on Solid-Solid Phase Transformations in Inorganic Materials 2015 |
Subtitle of host publication | Whistler, Canada; 28 June 2015 through 3 July 2015 |
Editors | Matthias Militzer, Gianluigi Botton, Lon-Qing Chen, James Howe, Chadwick Sinclair, Hatem Zurob |
Place of Publication | Whistler BC Canada |
Publisher | The Minerals, Metals & Materials Society |
Pages | 47-54 |
Number of pages | 8 |
ISBN (Electronic) | 9780692437360 |
Publication status | Published - 2015 |
Externally published | Yes |
Event | International Conference on Solid-Solid Phase Transformations in Inorganic Materials (PTM) 2015 - Westin Whistler Resort & Spa, Whistler, Canada Duration: 28 Jun 2015 → 3 Jul 2015 https://www.eiseverywhere.com//ehome/ptm2015/ |
Conference
Conference | International Conference on Solid-Solid Phase Transformations in Inorganic Materials (PTM) 2015 |
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Abbreviated title | PTM 2015 |
Country/Territory | Canada |
City | Whistler |
Period | 28/06/15 → 3/07/15 |
Internet address |
Keywords
- Age-hardening
- Low alloy steel
- Precipitation
- Strip casting