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| 回火温度对Q960钢析出物组织特征的影响 | |
| 引用本文： | 于浩,张道达,肖荣亭,周平,李灿明. 回火温度对Q960钢析出物组织特征的影响[J]. 北京科技大学学报, 2011, 33(6): 715-720 |
| 作者姓名： | 于浩 张道达 肖荣亭 周平 李灿明 |
| 作者单位： | 1. 北京科技大学材料科学与工程学院,北京,100083 2. 通裕重工股份有限公司,德州,251200 3. 莱芜钢铁集团有限公司,莱芜,271104 |
| 摘 要： | 利用透射电镜、能谱仪(EDX)及多功能内耗仪系统地研究了在相同成分、轧制工艺、淬火工艺和不同回火温度条件下Q960钢组织中析出物的形态、分布和组成,给出了回火温度对析出物组织特征的影响规律.结果显示:回火温度低于400℃时,马氏体内固溶碳量下降趋势较剧烈;回火温度高于400℃时,马氏体内固溶碳量下降非常缓慢.此外,大量细小且平行析出的θ--碳化物溶解并最终被沿马氏体板条界析出的Cr的碳化物代替.随着回火温度的升高,Nb、V和Ti的复合碳氮化物长大,形状也由方形向椭圆形演变. |
| 关 键 词： | 高强钢 回火 析出物 组织特征 内耗 马氏体 碳化物 |
Effect of tempering temperature on the structural properties of precipitates in Q960 steel |
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| YU Hao,ZHANG Dao-da,XIAO Rong-ting,ZHOU Ping,LI Can-ming. Effect of tempering temperature on the structural properties of precipitates in Q960 steel[J]. Journal of University of Science and Technology Beijing, 2011, 33(6): 715-720 | |
| Authors: | YU Hao ZHANG Dao-da XIAO Rong-ting ZHOU Ping LI Can-ming |
| Affiliation: | YU Hao1) Wingdingsj,ZHANG Dao-da2),XIAO Rong-ting1),ZHOU Ping3),LI Can-ming3)1) School of Materials Science and Engineering,University of Science and Technology Beijing,Beijing 100083,China2) Tongyu Heavy Industry Co.Ltd.,Dezhou 251200,China3) Laiwu Steel Corporation,Laiwu 271104,China |
| Abstract: | The morphology,distribution and components of precipitates in Q960 steel under the conditions of the same composition,rolling technology and quenching process but different tempering temperatures were systematically investigated by using transmission electron microscopy(TEM),energy dispersive X-ray spectrometry(EDX) and a multi-function internal friction device.A law was proposed for describing the effect of tempering temperature on the structure characteristics of the precipitates.It was shown that the dec... |
| Keywords: | high strength steel tempering precipitates structural properties internal friction martensite carbides |
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