| 贝氏体铁素体内的精细孪晶 |
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| 引用本文： | 伦宁,李晶晶,孟凡妍,秦超,孟祥敏,李凤照. 贝氏体铁素体内的精细孪晶[J]. 钢铁研究学报, 2014, 26(3): 51-56 |
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| 作者姓名： | 伦宁 李晶晶 孟凡妍 秦超 孟祥敏 李凤照 |
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| 作者单位： | 1. 山东大学材料科学与工程学院, 山东 济南 250061 2. 新思公司,美国 加利福尼亚 圣合塞 94043 3. 中国科学院上海硅酸盐研究所, 上海 200050 4. 中国科学院理化技术研究所光化学转换与功能材料重点实验室, 北京 100190 |
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| 基金项目： | 山东省自然科学基金资助项目(31370005200807) |
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| 摘 要： | 用分析电镜和高分辨电子显微镜观察分析了贝氏体钢中贝氏体铁素体精细结构及其尺寸,研究了铸造状态贝氏体钢经正火的连续冷却和锻造后空冷且等温转变后贝氏体铁素体亚片条间的晶体结构。结果表明,贝氏体铁素体亚片条间存在明显的孪晶关系。贝素体铁素体孪晶亚片条宽度在2~30nm范围内,最小的孪晶亚片条仅2~5nm。孪晶片条间的孪晶界面并非是平直的孪生面(11 2),而是由一段段以孪生面(11 2)为平台的台阶组成。
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| 关 键 词： | 贝氏体铁素体 亚片条 精细孪晶 孪晶取向关系 |
Fine Twin in Bainitic Ferrite |
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| LUN Ning,LI Jing-jing,MENG Fan-yan,QIN Chao,MENG Xiang-min,LI Feng-zhao. Fine Twin in Bainitic Ferrite[J]. Journal of Iron and Steel Research, 2014, 26(3): 51-56 |
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| Authors: | LUN Ning LI Jing-jing MENG Fan-yan QIN Chao MENG Xiang-min LI Feng-zhao |
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| Affiliation: | 1. School of Materials Science and Engineering, Shandong University, Jinan 250061, Shandong, China ;2. Synopsys Inc. , San Jose 94043, California, U. S. A ;3. Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 200050, China ;4. Key Laboratory of Photochemical and Optoelectronic Materials, TIPC, CAS, Beijing 100190, China |
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| Abstract: | The fine structure and size of bainitic ferritic subplates in bainitic steels were investigated and analyzed with high resolution electronic microscope. The results show that crystal structures between beinitic ferritic subplates of casted air cooling and forged air cooling are determined. There is obvious orientation relationship of the twins between bainitic ferritic subplates. The twin subplate widths of upper bainitic ferrite are 2-30nm and the minimal twin subplate widths of upper bainatic ferrite are accurately determined as between 2-5nm. The interface between twin subplates is not parallel, but it is consisted of ledges from terraces with twin planes (11 2). |
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| Keywords: | bainitic ferrite subplate fine twin twin orientation relationship |
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