Abstract：Thermal treatment of rail steel after hot rolled was investigated by Gleeble-1500 thermal-mechanical simulator. microstructure and mechanical properties at different austenitizing temperatures and the same transfer temperature were studied. The results show that: Compare with the hot rolled rail, toughness of thermal treatment rail increases with austenitizing temperature decrease, and the hardness of the rail is as good as the hot rolled rail. Through observing prior austenite grain size, pearlite colony size and interlamellar spacing after phase transition at the same transfer temperature, the relationship between thermal treatment temperature and pearlite microstructure and the mechanical properties were analyzed from the mechanism of pearlite transformation, to clarify the role of austenitizing temperature on the microstructure and properties of fully pearlitic rail steels.
收稿日期: 2011-10-26
出版日期: 2013-01-14
引用本文:
吴庆辉，杨忠民，杨超飞，陈颖，王慧敏. 轧后热处理温度对热轧钢轨组织和性能的影响[J]. 钢铁, 2012, 47(12): 59-63.
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