Print Email Facebook Twitter The Cementite Spheroidization Process in High-Carbon Steels with Different Chromium Contents Title The Cementite Spheroidization Process in High-Carbon Steels with Different Chromium Contents Author Luzginova, N.V. Zhao, L. Sietsma, J. Faculty Mechanical, Maritime and Materials Engineering Department Department of Materials Science and Engineering Date 2008-01-30 Abstract The cementite spheroidization process is investigated in hypereutectoid steels with different chromium (Cr) contents. A spheroidized structure in high-carbon steel is usually obtained by a divorced eutectoid transformation (DET) reaction, which occurs during slow cooling of austenite with fine cementite particles. A bimodal distribution of spheroidized cementite particles is experimentally observed. It is shown that Cr addition allows one to obtain the spheroidized structure after austenitization at a higher temperature and a longer annealing time as compared with low-Cr steel. It is found that the DET reaction takes place at low undercoolings compared with the pearlitic reaction. The occurrence of the DET reaction also depends strongly on the spacing between cementite particles during the austenitization process, i.e., on austenitization temperature and time. To reference this document use: http://resolver.tudelft.nl/uuid:e6e5fced-8026-478c-8c0b-6de0d10cc775 Publisher Springer ISSN 1543-1940 Source Metallurgical and Materials Transactions A, 39 (3) Part of collection Institutional Repository Document type journal article Rights (c) 2008 The Authors Files PDF teunissen_2008.pdf 197.25 KB Close viewer /islandora/object/uuid:e6e5fced-8026-478c-8c0b-6de0d10cc775/datastream/OBJ/view