Acta Metall Sin  1988, Vol. 24 Issue (2): 76-83    DOI:

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DEFORMATION BANDS ON SURFACE OF NIOBIUM SINGLE CRYSTALS DURING CYCLIC DEFORMATION

LIN Dongliang (T. L. Lin)Professar;Dept.of Materials Science.Shanghai Jiaotong University;WU Jiansheng Shanghai Jiaotong University

LIN Dongliang (T. L. Lin)Professar;Dept.of Materials Science.Shanghai Jiaotong University;WU Jiansheng Shanghai Jiaotong University. DEFORMATION BANDS ON SURFACE OF NIOBIUM SINGLE CRYSTALS DURING CYCLIC DEFORMATION. Acta Metall Sin, 1988, 24(2): 76-83.

Abstract References Related Articles Recommended Metrics Download:  PDF(3194KB)  Export:  BibTeX | EndNote (RIS)       Abstract  The surface morphology of niobium single crystals with [321]and [110] orientations during the deformation has been observed. Specimens withround cross section have been cycled to the saturated stage and the surface topog-raphy of rumpled bands has been observed using optical and scanning electron mi-croscope. In the present paper, the term of "deformation band", which is defferentfrom the kink band with special orientation, is used to define the rumpled band ofmaterial that has undergone inhomogenous plastic deformation. According to thedetailed topography, the deformation bands have been further subdivided into fivetypes and their formation process has been discussed. The deformation bands lie onthe plane of approximately 45° to the loading axis, i. e. the plane of the maxi-mum shear stress, which indicates that the macroscopic state of stress plays an im-portant role on the formation of deformation bands. Key words:  niobium single crystals      cyclic deformation      deformation bands      Received:  18 February 1988      Service E-mail this article Add to citation manager E-mail Alert RSS （） Articles by authors URL:  https://www.ams.org.cn/EN/     OR     https://www.ams.org.cn/EN/Y1988/V24/I2/76 1 Saletore M, Taggart R. Mater Sce Eng, 1978; 36: 259 2 Mughrabi H, Herz K, Stark X. Int J Fract, 1981; 17: 193 3 Lin Dongliang, Wu Jiansheng, Chen Xianfeng. Mater Sci Eng, 1987; 85: 19 4 吴建生.博士学位论文.上海交通大学,1985 5 Orowan E. Nature (London), 1942; 149: 643 6 A.塞格,张宏图译.晶体的范性及其理论.北京:科学出版社,1963:121 7 Crocker A G, Abell J S. Phil Mag, 1976; 33: 305 8 Guiu P, Pratt P L. Phys Status Solidi, 1966; 15: 539 9 Keh A S. 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[8] ZHANG Zhefeng; WANG Zhongguang; SU Huihe(State Key Laboratory for Fatigue and Fracture of Materials; Institute of Metal Research; The Chinese Academy of Sciences; Shenyang 110015)Correspondent: ZHANG Zhefeng Tel: (024)23843531-55225; Fax: (024)23891320. CYCLIC DEFORMATION BEHAVIOR OF A COPPER BICRYSTAL WITH A PERPENDICULAR GRAIN BOUNDARY[J]. 金属学报, 1998, 34(8): 841-846. [9] JIA Weiping; LI Shouxin; WANG Zhongguang; LI Xiaowu; LI Guangyi(State Key Laboratory for Fatigue and Fracture of Materials; Institute of Metal Research; The Chinese Academy of Sciences; Shenyang 110015). COMPARISON BETWEEN CYCLIC DEFORMATION BEHAVIORS OF NON-ISOAXIAL COPPER TRICRYSTAL AND BICRVSTAL[J]. 金属学报, 1998, 34(7): 696-704. 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