| 正火控冷工艺对Q460C钢板组织和性能的影响 |
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| 引用本文： | 郝小强,孟刚,郭小龙,闻佐龙,李啸松,杨因,王善芳. 正火控冷工艺对Q460C钢板组织和性能的影响[J]. 宽厚板, 2012, 18(1): 9-11 |
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| 作者姓名： | 郝小强 孟刚 郭小龙 闻佐龙 李啸松 杨因 王善芳 |
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| 作者单位： | 重庆钢铁股份有限公司 |
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| 摘 要： | 采用正火控冷试验研究Q460C钢板的生产工艺,结合力学试验和金相组织研究正火控冷工艺对Q460C钢板组织和性能的影响,结果表明:钢板强度随水冷速度的增加和终冷温度的降低而增加,当冷却速度<3℃/s,对钢板的强度值基本没有影响;当冷却速度>3℃/s,钢板的强度值随冷速升高而提高;正火温度<920℃时,0℃冲击性能随温度的升高而增加,正火温度>920℃时,冲击性能逐渐恶化。
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| 关 键 词： | Q460C钢 正火控冷 冷却速度 |
Effect of Normalizing and Controlled Cooling on the Microstructure and Performance of Q460C Steel Plates |
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| Hao Xiaoqiang , Meng Gang , Guo Xiaolong , Wen Zuolong , Li Xiaosong , Yang Yin , Wang Shanfang. Effect of Normalizing and Controlled Cooling on the Microstructure and Performance of Q460C Steel Plates[J]. Wide and Heavy Plate, 2012, 18(1): 9-11 |
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| Authors: | Hao Xiaoqiang Meng Gang Guo Xiaolong Wen Zuolong Li Xiaosong Yang Yin Wang Shanfang |
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| Affiliation: | ( Chongqing Iron and Steel Co. Ltd) |
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| Abstract: | Studies are implemented on the production process of Q460C steel plate by meams of normalizing/ controlled cooling test and the effect of normalizing / controlled cooling process on the microstureture and properties of Q460c steel plate by means of mechanical tests and metallographic structure examination. The results show that the strength of the steel plate increases with the inrease of water cooling rate and tile decrease of final cooling temperature. The strength values of the steel plate are not influenced when then cooling rate is less than 3 ℃/s; the strength values of the steel plate increase with the increase of cooling rate when the cooling rate is more than 3 ℃/s. The impact toughness at 0 ℃ increases with the increase of temperature when the normalizing temperature is less than 920℃ the impact toughness gradually deteriorates when the normalizing temperature is more than 920 ℃. |
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| Keywords: | Q460C steel Normalizing and controlled cooling Cooling rate |
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