| 铁基合金中的马氏体变体及变体联合 |
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| 引用本文： | 尹桂全,王世道. 铁基合金中的马氏体变体及变体联合[J]. 安徽工业大学学报, 2003, 20(4): 326-329 |
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| 作者姓名： | 尹桂全 王世道 |
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| 作者单位： | 安徽工业大学,冶金与材料学院,安徽,马鞍山,243002;兰州铁道学院,机电与动力工程学院,兰州,730070 |
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| 摘 要： | 用透射电镜研究了Fe—Ni—C和Fe—Ni—Cr—C合金试样中的马氏体形貌和晶体学。观察到了不同形貌的马氏体的变体生长，变体形状应变相互协调。还观察到在相变早期阶段由多个马氏体小片组成的变体联合。变体联合中，间隔的马氏体小片内具有同方向的(111)层错条纹。这些结果证实了切—转马氏体相变晶体学机制的理论预测。
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| 关 键 词： | 马氏体相变 铁基合金 晶体学 马氏体变体 切-转机制 |
| 文章编号： | 1671-7872(2003)04-0326-04 |
| 修稿时间： | 2003-04-08 |
Martensite variant pair and variant pair coalescence in iron-based alloys |
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| YIN Gui -quan ,WANG Shi -dao. Martensite variant pair and variant pair coalescence in iron-based alloys[J]. Journal of Anhui University of Technology, 2003, 20(4): 326-329 |
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| Authors: | YIN Gui -quan WANG Shi -dao |
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| Affiliation: | YIN Gui -quan 1,WANG Shi -dao 2 |
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| Abstract: | The morphologies and crystallograp hy of martensite in Fe -Ni -C and Fe -Ni -Cr -C alloys were in-vestigated by TEM.It is found that ma rtensite plates of various morpholo gies grow by means of variant pair and shape strain of variant can accommod ate each other.The variant pair coalescence consisting of several indiv idual plates in earlier stage of martensite transformation has also been observed.Within variant pair coalescence the in-dividual plates at an interval conta in stacking faults fringes at the sam e direction(111) f .These results from present experiment demonstrate the theoretical predict of the shear -rotation m echanism on martensite transformation crystallography. |
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| Keywords: | martensite transformation iron -b ased alloy crystallography marte nsite variant pair the shear -rotation mechanism |
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