金属学报  1994, Vol. 30 Issue (10): 439-447

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双滑移取向Cu单晶的循环形变行为──Ⅱ.滑移带和形变带

宫波;王中光;张轶伟;李广义;张天宜

中国科学院金属研究所材料疲劳与断裂国家重点实验室

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)

宫波;王中光;张轶伟;李广义;张天宜. 双滑移取向Cu单晶的循环形变行为──Ⅱ.滑移带和形变带[J]. 金属学报, 1994, 30(10): 439-447.
, , , , . CYCLIC DEFORMATION BEHAVIOUR OF Cu SINGLE CRYSTALS ORIENTED FORDOUBLE SLIP Ⅱ. Persistent Slip Bands and Deformation Bands[J]. Acta Metall Sin, 1994, 30(10): 439-447.

摘要 参考文献 相关文章 Metrics 全文: PDF(863 KB)   摘要: 用光学显微镜和扫描电镜研究了双滑移取向（［０３４］，［１１７］）Ｃｕ单晶循环饱和后的表面形貌，塑性分切应变幅（γｐｌ）低于１０~（－３）时，［０３４］晶体表面上要为主滑移系的驻留滑移带（ＰＳＢｓ）占据，次滑移只在边缘区域启动，其ＰＳＢｓ细窄（＜１μｍ），体积百分数在１％以下．γｐｌ＞１０~（－３）时，次滑移开始在试样的中部启动，同时，表面出现二种贯穿晶体的宏观形变带（ＤＢＩ，ＤＢＩＩ），滑移带在形变带内集中．［１１７］晶体在γｐｌ＝４．４×１０~（－４）时，双滑移现象已十分明显．γｐｌ＞１０~（－３）时，表面也形成与前者相似的形变带．ＤＢＩ的惯习面与主滑移面平行（［０３４］晶体）或接近（［１１７］晶体），ＤＢＩＩ的惯习面则与前者垂直，文章讨论了形变带形成的可能原因． 关键词 ： Ｃｕ单晶,  双滑移,  滑移带、形变带     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 收稿日期: 1994-10-18      基金资助:国家自然科学基金 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 宫波 王中光 张轶伟 李广义 张天宜 44.8K 链接本文: https://www.ams.org.cn/CN/      或      https://www.ams.org.cn/CN/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] 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. [2] 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. [3] 朱荣; 李守新; 李勇; 李明扬; 晁月盛 . Cu单晶体驻留滑移带的形成与消失[J]. 金属学报, 2004, 40(5): 467-470 . [4] 杨继红; 贾维平; 李守新 . [013]取向Cu单晶体在NaCl水溶液中腐蚀疲劳位错结构的观察[J]. 金属学报, 2004, 40(1): 99-102 . [5] 杨继红; 李勇; 李守新; 马常祥; 王刚; 柯伟 . 疲劳Cu单晶驻留滑移带的演化及其内应力场[J]. 金属学报, 2001, 37(5): 507-511 . [6] 李小武;王中光;李守新. [■12]双滑移取向铜单晶体的循环应变硬化及饱和[J]. 金属学报, 1998, 34(8): 864-869. [7] 林鑫;黄卫东;潘清跃;丁国陆;薛玉芳;周尧和. Al—4.5Cu单晶定向凝固一次枝晶间距研究[J]. 金属学报, 1997, 33(11): 1140-1146. [8] 宫波;王中光;张轶伟;李广义;张天宜. 双滑移取向Cu单晶的循环形变行为──Ⅰ.循环形变行为[J]. 金属学报, 1994, 30(10): 431-438. Viewed Full text Abstract Cited   Shared      Discussed