Acta Metall Sin  1994, Vol. 30 Issue (10): 439-447    DOI:

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CYCLIC DEFORMATION BEHAVIOUR OF Cu SINGLE CRYSTALS ORIENTED FORDOUBLE SLIP Ⅱ. Persistent Slip Bands and Deformation Bands

GONG Bo; WANG Zhongguang; ZHANG Yiwei; LI Guangyi; ZHANG Tianyi(State Key Laboratory for Fatigue and Fracture of Materials; Institute of Metal Re-search; Chinese Academy of Sctences; Shenyang)(Manuscript received 16 March; 1994)

GONG Bo; WANG Zhongguang; ZHANG Yiwei; LI Guangyi; ZHANG Tianyi(State Key Laboratory for Fatigue and Fracture of Materials; Institute of Metal Re-search; Chinese Academy of Sctences; Shenyang)(Manuscript received 16 March; 1994). CYCLIC DEFORMATION BEHAVIOUR OF Cu SINGLE CRYSTALS ORIENTED FORDOUBLE SLIP Ⅱ. Persistent Slip Bands and Deformation Bands. Acta Metall Sin, 1994, 30(10): 439-447.

Abstract References Related Articles Recommended Metrics Download:  PDF(863KB)  Export:  BibTeX | EndNote (RIS)       Abstract  The surface morphologies of fatigued Cu single crystals with double slip orientations ([034], [117]) were investigated by optical and scanning electron microscopy. At plastic shear strain amplitude (γpl) below 10~(-3), the surface of [034] crystal is mainly covered by the persistent slip bands(PSBs) of primary slip, and the secondary PSBs only appear at the edge regions of the specimens with a volume fraction less than 1 percent. At γpl> 10~(-3), the secondary slip system becomes active on a large scale, particularly at region between primary PSBs, and two kinds of macro deformation bands (DBⅠ, DBⅡ) form with primary PSBs concentrated inside. [117] crystal shows a pronounced double slip phenomenon even at γpl～4.4 × 10~(-4). At γpl > 10~(-3), deformation bands also form similar to those of [034] crystal. The habit plane of DB Ⅰ is either parallel to (in [034] case) or near to (in [117] case) primary slip plane, while that of DBⅡ is perpendicular to the former one.The possible reason of the formation of deformation bands is discussed.Correspondent: GONG Bo, Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110015 Key words:  Cu single crystal      double slips      persistent slip band      deformation band      Received:  18 October 1994      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/Y1994/V30/I10/439 1LairdC,FinneyJM,Kuhlmann-WilsdorfD．MaterSciEng,1981;50:1272宫波,王中光,张轶伟,李广义,张天宜．金属学报,1994,30:4313MaBT,LairdC．ActaMetall,1989;37:3254WinterAT．PhilosMag,1974;29:7195CahnRW．JInstMet,1950-1951;79:1296HoneycombeRKW．JInstMet,1951-1952;80:457CalnanEA．ActaCrystall,1952;5:5578GostelowCR．MetSciJ,1971;5:1779MughrabiH．MaterSciEng,1978;33:20710SaletoreM,TaggartRMaterSciEng,1978:36:259 [1] Tingbiao GUO, Qi LI, Chen WANG, Feng ZHANG, Zhi JIA. Deformation Characteristics and Mechanical Properties of Single Crystal Copper During Equal Channel Angular Pressing by Route A[J]. 金属学报, 2017, 53(8): 991-1000. [2] Weiwei GUO,Chengjun QI,Xiaowu LI. INVESTIGATIONS ON THERMAL STABILITY OF FATIGUE DISLOCATION STRUCTURES IN CONJUGATE AND CRITICAL DOUBLE-SLIP-ORIENTED Cu SINGLE CRYSTALS[J]. 金属学报, 2016, 52(6): 761-768. [3] GUO Weiwei, QI Chengjun, LI Xiaowu. INVESTIGATIONS ON THERMAL STABILITY OF FATIGUE DISLOCATION STRUCTURES IN A DOUBLE-SLIPORIENTED Cu SINGLE CRYSTAL[J]. 金属学报, 2013, 49(1): 107-114. [4] YANG Xuyue SUN Zhengyan ZHANG Lei. PREPARATION OF SUBMICRO AND NANOSIZED MAGNESIUM ALLOYS BY MULTIPLY COMPRESSED DEFORMATION[J]. 金属学报, 2010, 46(5): 607-612. [5] YANG Xuyue JIANG Yupei. MORPHOLOGY AND CRYSTALLOGRAPHIC CHARACTERISTICS OF DEFORMATION BANDS IN Mg ALLOY UNDER HOT DEFORMATION[J]. 金属学报, 2010, 46(4): 451-457. [6] ZHANG Zhefeng; DUAN Qiqiang; WANG Zhongguang. Micro-mechanisms of fatigue damage in copper crystals[J]. 金属学报, 2005, 41(11): 1143-1149 . [7] ZHU Rong; LI Shouxin; LI Yong; LI Mingyang; CHAO Yuesheng. Formation and Annihilation of Persistent Slip Bands in Fatigued Copper Single Crystals[J]. 金属学报, 2004, 40(5): 467-470 . [8] (LI Xiaowu; WANG Zhongguang; SUN Shouguang; WU Shiding; LI Shouxin;LI Guangyi (State Key Laboratory for Fatigue and Fracture of Materials; Institute of Metal Research; The Chinese Academy of Sciences; Shenyang 110015)(Department of Mechanical Engineering; Northern Jiaotong University; Beijing 100044). CYCLIC DEFORMATION BEHAVIOR OF [011]MULTIPLE-SLIP-ORIENTED COPPER SINGLE CRYSTALS Ⅱ. Surface Slip Features and Deformation Bands[J]. 金属学报, 1998, 34(5): 552-560. [9] LIN Xin;HUANG Weidong;PAN Qingyue;DING Guolu;XUE Yufang;ZHOU Yaohe(Stale Key Laboratory of Solidification Processing; Northwestern Polytechnical University; Xi'an 710072). RESEARCH ON PRIMARY DENDRITIC SPACING IN UNIDIRECTIONAL SOLIDIFICATION OF Al-4.5Cu SINGLE CRYSTAL[J]. 金属学报, 1997, 33(11): 1140-1146. [10] GONG Bo; WANG Zhongguang; ZHANG Yiwei; LI Guangyi; ZHANG Tianyi(State Key Laboratory for Fatigue and Fracture of Materials; Institute of Metal Research; Chinese Academy of Sciences; Shenyang)(Manuscript received 16 March; 1994). CYCLIC DEFORMATION BEHAVIOUR OF Cu SINGLE CRYSTAL ORIENTED FOR DOUBLE SLIPS Ⅰ. Cyclic Hardening and Saturation[J]. 金属学报, 1994, 30(10): 431-438. [11] YAO Kefu University of Science and Technology Beijing; TANG Naiyong; CHEN Nanping Tsinghua University; Beijing. TEM OBSERVATION ON LOCAL DEFORMATION BAND AHEAD OF CRACK TIP[J]. 金属学报, 1991, 27(6): 1-8. [12] ZHAI Tongguang;LIN Shi;PAN Hu;XIAO Jimei University of Science and Technology Beijing. INFLUENCE OF PHYSICAL DAMAGE EFFECT OF PSB ON CRACK INITIATION IN Al SINGLE CRYSTAL[J]. 金属学报, 1991, 27(1): 32-38. [13] 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[J]. 金属学报, 1988, 24(2): 76-83. No Suggested Reading articles found! Viewed Full text Abstract Cited   Shared      Discussed