| Bainite Transformation Under Continuous Cooling of Nb-Microalloyed Low Carbon Steel |
| |
| 作者姓名： | YI Hai-long DU Lin-xiu WANG Guo-dong LIU Xiang-hua |
| |
| 作者单位： | （State Key Laboratory of Rolling and Automation, Northeastern University, Shenyang 110004, Liaoning, China |
| |
| 基金项目： | 国家科技攻关项目
,
中国科学院资助项目 |
| |
| 摘 要： | Utilizing Gleeble-1500 thermomechanical simulator, the influences of hot deformation parameters on continuous cooling bainite transformation in Nb-microalloyed low carbon steel were investigated. The results indicate that bainite starting temperature decreases with raising cooling rate and increases with increasing deformation temperature. Deformation has an accelerative effect on the bainite transformation when the specimens are deformed at 950 ℃. When the deformation temperature increases, the effect of deformation on bainite starting temperature is weakened. The amount of bainite is influenced by strain, cooling rate, and deformation temperature. When the specimens are deformed below 900 ℃, equiaxed ferrites are promoted and the bainite transformation is suppressed.
|
| 关 键 词： | 铌微合金钢 低碳钢 贝氏体转变 等轴铁素体 残余奥氏体 连续冷却 热模拟 |
| 修稿时间： | 2005-06-08 |
Bainite Transformation Under Continuous Cooling of Nb-Microalloyed Low Carbon Steel |
| |
| YI Hai-long DU Lin-xiu WANG Guo-dong LIU Xiang-hua.Bainite Transformation Under Continuous Cooling of Nb-Microalloyed Low Carbon Steel[J].Journal of Iron and Steel Research,2006,13(3):36-39,67. |
| |
| Authors: | YI Hai-long DU Lin-xiu WANG Guo-dong LIU Xiang-hua |
| |
| Affiliation: | 1. Université de Tunis El Manar, Ecole Nationale d''Ingénieurs de Tunis, LR-11-ES19 Laboratoire de Mécanique Appliquée et Ingénierie (LR-MAI), 1002 Tunis, Tunisie;2. Université de Tunis El Manar, Institut Préparatoire aux Etudes d''Ingénieurs d''El Manar, B.P 244, 2092 Tunis, Tunisie;3. Depto. de Ingeniería Mecánica y de Materiales, Centro de Investigación de Tecnología de Vehículos—CITV, Universitat Politècnica de València, Camino de Vera, 46022 Valencia, Spain;4. PRISME Laboratory, EA4229, University of Orleans Polytech‘ Orléans, 8, Rue Léonard de Vinci, 45072 Orléans, France;1. State Key Laboratory of Metastable Materials Science and Technology, Yanshan University, Qinhuangdao 066004, China;2. School of Environmental& Chemical Engineering, Yanshan University, Qinhuangdao 066004, China |
| |
| Abstract: | Utilizing Gleeble-1500 thermomechanical simulator, the influences of hot deformation parameters on continuous cooling bainite transformation in Nb-microalloyed low carbon steel were investigated. The results indicate that bainite starting temperature decreases with raising cooling rate and increases with increasing deformation temperature. Deformation has an accelerative effect on the bainite transformation when the specimens are deformed at 950 ℃. When the deformation temperature increases, the effect of deformation on bainite starting temperature is weakened. The amount of bainite is influenced by strain, cooling rate, and deformation temperature. When the specimens are deformed below 900 ℃, equiaxed ferrites are promoted and the bainite transformation is suppressed. |
| |
| Keywords: | Nb-microalloyed low carbon steel bainite starting temperature bainite equiaxed ferrite retained austenite |
| 本文献已被 CNKI 维普 万方数据 ScienceDirect 等数据库收录！ |
|
