| 高碳马氏体深冷处理后分解产物的组织分析 |
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| 引用本文： | 段春争,李士燕,刘秀芝,陈长风. 高碳马氏体深冷处理后分解产物的组织分析[J]. 兰州理工大学学报, 1999, 25(4) |
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| 作者姓名： | 段春争 李士燕 刘秀芝 陈长风 |
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| 作者单位： | 甘肃工业大学,材料工程系,甘肃,兰州,730050 |
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| 摘 要： | 采用Ｘ衍射和透射电镜研究了淬火及深冷后的微细组织结构，指出深冷处理后硬度的提高主要来自微细弥散碳化物的沉淀析出，这些碳化物直径在１０－ ６ ｍ ｍ级．研究表明，深冷处理使马氏体轴比ｃ／ａ 降低．
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| 关 键 词： | 高碳马氏体 深冷处理 η-Fe2C |
| 修稿时间： | ： 1999-04- |
Structural analysis of decomposition production of high carbon martensite after cryogenic treatment |
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| DUAN Chun-zheng,LI Shi-yan,LIU Xiu-zhi,CHEN Chang-feng. Structural analysis of decomposition production of high carbon martensite after cryogenic treatment[J]. Journal of Lanzhou University of Technology, 1999, 25(4) |
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| Authors: | DUAN Chun-zheng LI Shi-yan LIU Xiu-zhi CHEN Chang-feng |
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| Abstract: | Using the diffractometer and TEM, the microstructure of high carbon steel after quenching and cryogenic treatment are investigated. The result shows that the improvement of hardness after cryogenic treatment mainly comes from the precipitation of ultra fine disperse carbide. The diameter of these carbide is about the order of 10 -6 mm and this shows that the cryogenic treatment can reduce the c/a ratio of martensite. |
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