| 变形温度对0.05C-0.13Nb钢组织和析出物的影响 |
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| 引用本文： | 文建华,孙新军,刘清友,阴树标,项金钟. 变形温度对0.05C-0.13Nb钢组织和析出物的影响[J]. 特殊钢, 2007, 28(3): 32-34 |
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| 作者姓名： | 文建华 孙新军 刘清友 阴树标 项金钟 |
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| 作者单位： | 1 云南大学物理科学技术学院，昆明650091;2钢铁研究总院结构材料研究所，北京100081 |
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| 摘 要： | 用Gleeble-1500D热模拟试验机和电子显微镜研究了在950～750℃不同温度下变形50％后0.05C- 0.13Nb钢的组织和析出相。结果表明,随变形温度由950℃下降至750℃,0.05C-0.13Nb钢中多边形铁索体含量(体积分数)由20％增至80％,多边形铁素体晶粒尺寸由9μm降至4μm;变形后的组织由多边形铁索体、粒状贝氏体和1～3μm马氏体/奥氏体岛组成;钢中的析出物为1～10 nm的Nb(C,N),随变形温度降低析出物数量增加。
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| 关 键 词： | 变形温度 0.13Nb钢 组织 析出物 |
| 收稿时间： | 2006-12-05 |
| 修稿时间： | 2006-12-05 |
Effect of Deforming Temperature on Structure and Precipitates of 0.05C-0.13Nb Steel |
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| Wen Jianhua,Sun Xinjun,Liu Qingyou,Yin Shubiao,Xiang Jinzhong. Effect of Deforming Temperature on Structure and Precipitates of 0.05C-0.13Nb Steel[J]. Special Steel, 2007, 28(3): 32-34 |
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| Authors: | Wen Jianhua Sun Xinjun Liu Qingyou Yin Shubiao Xiang Jinzhong |
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| Affiliation: | 1Schoolof PhysicalScienceandTechnology,YunnanUniversity,Kunming650091;2InstituteforStructuralMaterials,CenterIronandResearchInstitute,Beijing100081 |
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| Abstract: | The structure and precipitates of 0.05C-0. 13Nb steel deformed by 50% at different temperature between 950~750 ℃ have been studied by Gleeble- 1500D thermal simulation machine,SEM and TEM. Results showed that with deforming temperature decreasing from 950 ℃ to750 ℃,the polygonal ferite content(volume percent)in 0.05C-0. 13Nb steel increased from 20% to 80% and grain size of polygonal ferrite decreased from 9 μm to4 μm; the deformed structure in steel consisted of polygonal ferite,grain bainite and 1~3 μm martensite/austenite island; and the amount of 1～10 nmprecipitates Nb (C,N) in steel increased with decreasing deformed temperature. |
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| Keywords: | Deforming Temperature 0.13Nb Steel Structure Precipitates |
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