Home Kovove Materialy-Metallic Materials 2020 Kovove Materialy-Metallic Materials Vol. 58 (2020), no. 6, pp.387–393

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Kovove Materialy-Metallic Materials Vol. 58 (2020), no. 6, pp.387–393

Title: Effect of deformation temperature on bainitic transformation and microstructure of a medium carbon high strength bainite steel
Author: Z. Wang, G. Xu, M. Liu, G. Chen, H. Hu
Abstract: The effect of deformation temperature on bainitic transformation was investigated by dilatometry, microstructure, and X-ray diffraction analysis. The results indicate that deformation accelerates initial bainite transformation by increasing nucleation sites. There is a critical temperature to promote the amount of bainitic transformation. When the ausforming temperature decreases below the critical temperature (525 °C), the final amount of bainite is larger than that of non-deformation steel. In addition, the microstructures of all specimens consist of needle-like bainite, film-like retained austenite (RA), and blocky martensite, while the finer microstructure and shorter bainite are observed in deformed specimens.
Keywords: bainitic transformation, ausforming temperature, retained austenite (RA), deformation
Published online: 09-Nov-2020
Year: 2020, Volume: 58, Issue: 6 Page From: 387, Page To: 393
doi:10.4149/km_2020_6_387


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