金属学报  1997, Vol. 33 Issue (2): 198-206

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摇摆晶体法研究六角密堆单晶体中的位错结构(英文)

Y.Hao;F.Mucklich;G.Petzow

Max-Planck-InstitutfurMetallforschung;InstitutfurWerkstoffwissenschaft;Pulverme-tallurgischesLaboratiorium;Heisenbergstr;5;70569Stuttgart;Germany;InstitutefurWerkstoffwissenschafternUniversitatdesSaarlandes;66041Saarbrucken;Max-Planck-InstitutfurMetallfor

INVESTIGATION OF THE DISLOCATION STRUCTURE IN HCP SINGLE CRYSTALS BY MEANS OF THE ROCKING CRYSTAL METHOD

Y.Hao and G.Petzow (Max-Planck-Institut fur Metallforschung; Institut fur Werkstoffwissenschaft; Pulverme-tallurgisches Laboratiorium; Heisenbergstr. 5; 70569 Stuttgart; Germany)F.Mucklich (Institute fur Werkstoffwissenschaftern Universitat des Saarlandes; 66041 Saarbrucken)

Y.Hao;F.Mucklich;G.Petzow. 摇摆晶体法研究六角密堆单晶体中的位错结构(英文)[J]. 金属学报, 1997, 33(2): 198-206.
, , . INVESTIGATION OF THE DISLOCATION STRUCTURE IN HCP SINGLE CRYSTALS BY MEANS OF THE ROCKING CRYSTAL METHOD[J]. Acta Metall Sin, 1997, 33(2): 198-206.

摘要 参考文献 相关文章 Metrics 全文: PDF(1202 KB)   摘要: 单晶体在其生长过程中可引入大量位错而导致晶体点阵的弯曲和畸变．利用考虑了运动学衍射理论的Krivoglaz模型进行理论计算．选择具有良好光学性能并可做为X射线单色器的被单晶做为样品，研究其摇摆曲线．不同滑移系统的基面位错、柱面位错影响不同的反射，研究相应反射的摇摆曲线可测定晶体内的位错结构，这对发展晶体单色器具有重要作用，可通过控制生长条件、热处理条件得到所需要的简单位铝结构． 关键词 ： 铍单晶,  X射线单色器,  摇摆晶体法,  位错结构     Abstract：A single crystal contains a large number of dislocations after its growth, which can give rise to deflection and distortion of the crystal lattice. In this study the disloctaion struc-ture of hcp single crystals was investigated by means of the rocking crystal method.The theoretical calculation is based on the Krivoglaz model which was developed fromthe kinematic diffraction theory. Beryllium single crystals. due to their excellent opticalproperties as X-ray monochromators. were chosen as a specimen and their rockingcurves were investigated. The dislocations generated on different glide systems- for ex-ample basal and prismatic dislocations. contribute differently to each reflection. There-fore by studying the rocking curves of different reflections it is possible to determinethe dislocation structure within the crystal This is of great imprortance in developingthe crystal monochromators. which usually require tailored dislocation structures byoptimising the growth and heat treatment conditions. Key words： Be single crystal. X-ray monochromator    rocking crystal method    dis-location structure 收稿日期: 1997-02-18      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 Y.Hao F.Mucklich G.Petzow 44.8K 链接本文: https://www.ams.org.cn/CN/      或      https://www.ams.org.cn/CN/Y1997/V33/I2/198 1 M.Wilkens, Phys.Status.Solidi.(a) 2 (1970) 359. 2 M.V.Laue, Xray Interkrence (Akademische Verlagsgesellschaft, Leipzig, 1941 ). 3 P.Klimanek, in Annual Reporl 1986 on Nuclear Physics and Applications. ZfK-Publ. 621, ZfKRossendorf 1987. 4 M.A.Krivoglaz and K.P.Ryaboshshapka, Fiz. Met. Metalloved 15 (1963) 18. 5 M.A.Krivoglaz, K.P.Ryaboshshapka and R.I.Barabash, Fis. Met. Metalloved 30 (1970) 1134. 6 O.N.Grigoryev, K.P.Ryaboshapka and N.A.Stel'mashenko, Fiz. Met. Metalloved 67 (1989) 311. 7 R.I.Barabash, M.A.Krivoglaz and K.P.Ryaboshshapka, Fic. Met. Metalloved. 41 (1976) 33. 8 Aldinger and G.Petzow, Beryllium Sci. Technol. 7 (1979) 107. 9 Y.Hao, Dissertation (Max-Planck-Institut, Stuttgart, 1996). 10 C.Brocker et al., Nucl. Instrum. Methodf Phys. Res. A290 (1990) 303. 11 F.Milcklich, Y.Hao and G.Petzow, Proc. Euromat '95, Assoz. Ital. di Metallurgia, Milano, 4 (1995) 305. 12 F.Mhcklich, H.Oettel and G.Petzow, Z.Metallk. 84 (1993) 419. 13 F.Mhcklich and G.Petzow, Development of Beryllium Single Crystal Material .hr Monochromator Applications, in: Mineral Processing and Extractive Metallurgy Review, Beryllium -Issue, Gordon andBreach, New York, (1993) 193. 14 C.May, P.Klimanek and A.Magerl, Nucl. Instrum. Method. Phys. Res. A357 (1995) 511. 15 A.K.Freund, Nucl. Instrum. Method. 7 (1974) 541. 16 A.K.Freund, NucI. Instrum. Method. Phys. Res. A238 (1985) 570.3 [1] 韩冬, 张炎杰, 李小武. 短程有序对高层错能Cu-Mn合金拉-拉疲劳变形行为及损伤机制的影响[J]. 金属学报, 2022, 58(9): 1208-1220. [2] 郭巍巍,齐成军,李小武. 共轭和临界双滑移取向Cu单晶体疲劳位错结构的热稳定性研究*[J]. 金属学报, 2016, 52(6): 761-768. [3] 颜莹,卢蒙,李小武. 预疲劳变形对粗晶纯Al单向拉伸行为的影响[J]. 金属学报, 2013, 49(6): 658-666. [4] 郭巍巍,齐成军,李小武. 一个共面双滑移取向Cu单晶体疲劳位错结构的热稳定性研究[J]. 金属学报, 2013, 49(1): 107-114. [5] 陈畅 汪明朴 王珊 贾延琳 左波 夏福中. Ta-7.5%W合金箔材冷轧过程中的位错结构演变[J]. 金属学报, 2011, 47(8): 984-989. [6] 李小武 曹昕明 马超群. 含富Cr沉淀颗粒Fe--Cr合金单晶体的疲劳变形特征[J]. 金属学报, 2009, 45(7): 801-807. [7] 张文征 . O点阵模型及其在界面位错计算中的应用[J]. 金属学报, 2002, 38(8): 785-794 . [8] 肖林; 白菊丽 . Zr-4合金双轴疲劳行为及其微观变形机理Ⅱ.双轴循环变形亚结构及其？…[J]. 金属学报, 2000, 36(9): 919-925 . [9] 宫波;陈道伦;苏会和;王中光. 用扫描电镜直接观察变形材料中的位错结构──[001]取向铜单晶疲劳位错结构的研究[J]. 金属学报, 1997, 33(6): 561-565. [10] 郑冶沙;王中光;艾素华. 疲劳裂纹尖端的位错结构[J]. 金属学报, 1995, 31(3): 105-114. [11] 朱平;张力宁. 1Cr18Ni9Ti微塑性变形行为的研究[J]. 金属学报, 1989, 25(6): 126-130. [12] 夏月波;王中光;杜秀魁. 不锈钢在循环形变中的Bauschinger效应及其位错结构[J]. 金属学报, 1988, 24(4): 221-227. Viewed Full text Abstract Cited   Shared      Discussed