| L12型Al3Ti合金室温变形超位错的分解及计算机图像模拟 |
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| 引用本文： | 戎咏华,吴晓华,陈小夫,陈世朴,胡赓祥.L12型Al3Ti合金室温变形超位错的分解及计算机图像模拟[J].金属学报,1995,31(7):294-299. |
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| 作者姓名： | 戎咏华 吴晓华 陈小夫 陈世朴 胡赓祥 |
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| 作者单位： | 上海交通大学 |
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| 摘 要： | 利用透射电子显微镜和计算机图像模拟技术研究了ＬＩ２型Ａｌ３Ｔｉ合金室温变形的位错核心结构，结果表明：α（１１０）超位错在｛１１１｝面上分解成两个α／３｛１１２｝型超偏位错，其间为超点阵内禀层错。
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| 关 键 词： | AI3Ti 计算机图像模拟 位错 金属间化合物 |
| 收稿时间： | 1995-07-18 |
| 修稿时间： | 1995-07-18 |
TEM AND COMPUTER IMAGE SIMULATIONS ON SUPERDISLOCATIONS IN ROOM TEMPERATURE DEFORMED Al_(67)Mn_8Ti_(25) ALLOY |
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| RONG Yonghua,WU Hiaohua,CHEN Hiaofu,CHEN Shipu,HU Gengxiang.TEM AND COMPUTER IMAGE SIMULATIONS ON SUPERDISLOCATIONS IN ROOM TEMPERATURE DEFORMED Al_(67)Mn_8Ti_(25) ALLOY[J].Acta Metallurgica Sinica,1995,31(7):294-299. |
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| Authors: | RONG Yonghua WU Hiaohua CHEN Hiaofu CHEN Shipu HU Gengxiang |
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| Abstract: | TEM investigation associated with computer image simulations were conducted to determine the dissociation of superdislocations in the room temperature deformed Ll2-type Al3Ti alloy.It is determined that the a(110) superdislocations dissociated into pairs of a/3(112) superpartials with SISF between them.The theoretical and experimental micrographs are in good agreement under various diffraction conditions. |
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| Keywords: | L1_2-type Al_3Ti alloy computer image simulation superlattice intrinsic stacking fault(SISF) |
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