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| Nb对低碳微合金钢相变的影响 | |
| 引用本文： | 赵莉萍,冯岩,庞在广. Nb对低碳微合金钢相变的影响[J]. 包头钢铁学院学报, 2005, 24(3): 254-257 |
| 作者姓名： | 赵莉萍 冯岩 庞在广 |
| 作者单位： | [1]内蒙古科技大学,材料与冶金学院,内蒙古包头014010 [2]包头钢铁（集团）公司,无缝钢管厂,内蒙古包头014010 |
| 基金项目： | 内蒙古高等学校科研项目 |
| 摘 要： | 采用Gleeble-1500D型热模拟机测定了不同含铌量低碳微合金钢在不同冷却速度下,过冷奥氏体连续冷却相变点,分析观察了显微组织,测定了其显微硬度.得出:在同一冷却速度下,随着含铌量的提高,过冷奥氏体连续冷却相变点降低,容易出现条片状贝氏体铁素体,显微硬度提高;在相同成分下,随着冷却速度的增加,含铌钢中铁素体越来越细小,由等轴状大块铁素体组织向条片状贝氏体铁素体转变. |
| 关 键 词： | Nb 低碳微合金钢 贝氏体铁素体 低碳微合金钢 相变点 影响 low alloy steel carbon phase transformation 铁素体转变 铁素体组织 含铌钢 成分 贝氏体 显微硬度 显微组织 析观 连续冷却 过冷奥氏体 冷却速度 含铌量 测定 热模拟机 |
| 文章编号： | 1004-9762(2005)03-0254-04 |
| 收稿时间： | 2005-06-12 |
| 修稿时间： | 2005-06-12 |
Effect of Nb on phase transformation of the low carbon and low alloy steel |
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| ZHAO Li-ping,FENG Yan,PANG Zai-guang. Effect of Nb on phase transformation of the low carbon and low alloy steel[J]. Journal of Baotou University of Iron and Steel Technology, 2005, 24(3): 254-257 | |
| Authors: | ZHAO Li-ping FENG Yan PANG Zai-guang |
| Affiliation: | 1. Material and Metallurgy School, UST Inner Mongolia, Baotou 014010, China; 2. Seamless Steel Tube Plant, Baotou Iron and Steel(Group |
| Abstract: | The phase transfomation temperature was determined by Gleeblc-1500 thermo-mechanical simulator with different Nb content for the low carbon and low alloy steel. The microstructure and hardness were studied, showing that under the same cooling rate, the austenite phase transformation temperature decreased with increasing Nb content,while the microstructure was long slip bainite ferrite and its hardness was also increasing. Under the same Nb content, the austenite phase transformation temperature decreased with increasing the cooling rate, and the microstructure became tiny fine while the big equiax ferrite grain changed into long lath bainite ferrite. |
| Keywords: | Nb the low carbon and low alloy steel bainite ferrite |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ | |