金属学报  1991, Vol. 27 Issue (3): 27-32

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铁镍基合金中蝶状马氏体核胚的研究

陈奇志;吴杏芳;柯俊

北京科技大学;北京科技大学;北京科技大学

BUTTERFLY MARTENSITE NUCLEI IN AN Fe-Ni-V-C ALLOY

CHEN Qizhi;WU Xingfang;KE Jun T. Ko University of Science and Technology Beijing

陈奇志;吴杏芳;柯俊. 铁镍基合金中蝶状马氏体核胚的研究[J]. 金属学报, 1991, 27(3): 27-32.
, , . BUTTERFLY MARTENSITE NUCLEI IN AN Fe-Ni-V-C ALLOY[J]. Acta Metall Sin, 1991, 27(3): 27-32.

摘要 参考文献 相关文章 Metrics 全文: PDF(2394 KB)   摘要: 利用透射电子显微镜(TEM)在Fe-Ni-V-C合金中观察到一些马氏体核胚,核胚的结构为特殊的位错组态:Burgers矢量为1/2[011]fcc,且一端为封闭的发夹型位错,和在发夹型位错内塞税的、Burgers矢量为1/2[110]fcc的位错列。它们分别提供了马氏体相变所必须的二次切变。 关键词 ： 蝶状马氏体,  核胚,  发夹型位错,  塞积位错     Abstract：The butterfly martensite nuclei in an Fe-Ni-V-C alloy were observedunder TEM to consist of the enveloping dislocations with Burgers vector 1/2[011]_(fcc)and the arrays of dislocations with Burgers vector 1/2[110]_(fcc) piled up within theformers. The enveloping dislocations and the arrays of dislocations provide the re-quired shear when the planes (111)_(fcc) move over each other to alter their stackingorder and change into the planes (110)_(bcc) respectively. The neccessary adjustment ofthe spacings is provided by the dislocations in martensite. The crystallographic rela-tionship after double-shear is K-S one. Key words： butterfly martensite    nuclei    enveloping dislocation    piling dislocation 收稿日期: 1991-03-18      服务 把本文推荐给朋友 加入引用管理器 E-mail Alert RSS 作者相关文章 陈奇志 吴杏芳 柯俊 44.8K 链接本文: https://www.ams.org.cn/CN/      或      https://www.ams.org.cn/CN/Y1991/V27/I3/27 1 Kikuchi T, Kajimara S. In: Delaey L, Chandrasekaran M eds., Proc ICOMAT-1982, August, 8--12, 1982, Leuven, 1982: 109 2 Loretto M H, Butler E P. In: Fujita H ed., Proc Int Symposim on Behavier of Lattice Imperfections in Materials-In Situ Experiments with High Voltage Electron Microscopes (HVEM), Research Center for Ultra-High Voltage Electron Microscopy, Osaka, Japan, 1985: 85 3 Katayama T, Fujita H. In: Fujita H ed., Proc Int Symposim on Behavier of Lattice Imperfections in Materials-In Situ Experiments with High Voltage Electron Microscpoes (HVEM), Research Center for Ultra-High Voltage Electron Microscopy, Osaka, Japan, 1985: 103 4 张修睦,李依依.金属学报,1991;27:A179 5 Olson G B, Cohen M. Metall Trans, 1976; 7A: 1897 6 Foreman A J, Jaswon M A, Wood J K. Proc Phys Soc, 1951; A64: 156 7 Chen Qizhi, Wu Xing fang, Ke Jun. Acta Metall, to be published[ [1] 王六定;刘林;胡光立;康沫狂. 等温马氏体转变的核胚数问题[J]. 金属学报, 1994, 30(5): 217-220. Viewed Full text Abstract Cited   Shared      Discussed