| 贝氏体和马氏体浮突的扫描隧道显微镜研究 |
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| 引用本文： | 方鸿生,杨志刚,王家军,郑燕康.贝氏体和马氏体浮突的扫描隧道显微镜研究[J].金属学报,1995,31(9):387-392. |
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| 作者姓名： | 方鸿生 杨志刚 王家军 郑燕康 |
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| 作者单位： | 清华大学 |
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| 摘 要： | 本文首次用扫描隧道显微镜（ＳＴＭ）研究了Ｆｅ－Ｃ－Ｃｒ钢中贝氏体和马氏体浮突的形态，利用ＳＴＭ所独具的优异的纵向分辨率，发现贝氏体浮突实际上是贝氏体的亚片条，亚单元及超亚单元造成的表面浮突所组成的浮突群，完全不符合马氏体浮突的不变平面应变特征，说明了贝氏体相变不可能按切变机制进行。
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| 关 键 词： | 贝氏体 马氏体 扫描隧道显微镜 浮突 |
| 收稿时间： | 1995-09-18 |
| 修稿时间： | 1995-09-18 |
INVESTIGATION OF SURFACE RELIEF WITH BAINITE AND MARTENSITE BY SCANNING TUNNELING MICROSCOPY |
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| FANG Hongsheng,YANG Zhigang,WANG Jiajun,ZHENG Yankang.INVESTIGATION OF SURFACE RELIEF WITH BAINITE AND MARTENSITE BY SCANNING TUNNELING MICROSCOPY[J].Acta Metallurgica Sinica,1995,31(9):387-392. |
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| Authors: | FANG Hongsheng YANG Zhigang WANG Jiajun ZHENG Yankang |
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| Affiliation: | FANG Hongsheng,YANG Zhigang(Department of Materials Science & Engineering,Tsinghua University.Beijing ),WANG Jiajun,ZHENG Yankang (Tsinghua University,Beijing ) |
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| Abstract: | Scanning tunneling microscopy (STM) was first employed to study the surface relief accompanying bainite and martensite transformation in an Fe-C-Cr steel. With the exclusive vertical resolution of STM, a result indicates that the surface relief associated with bainite is a group of surface reliefs related to subplates, subunits and sub-subunits, and not of invariant plane strain (IPS) type, which is obviously different from that of martensite,and implying that bainite does not form by shear mechanism. |
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| Keywords: | surface relief bainite martensite STM |
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