金属学报  2004, Vol. 40 Issue (5): 467-470

论文 本期目录 | 过刊浏览 |

Cu单晶体驻留滑移带的形成与消失

朱荣; 李守新; 李勇; 李明扬; 晁月盛

中国科学院金属研究所沈阳材料科学国家(联合)实验室; 沈阳 110016

Formation and Annihilation of Persistent Slip Bands in Fatigued Copper Single Crystals

ZHU Rong; LI Shouxin; LI Yong;LI Mingyang; CHAO Yuesheng

Shenyang National Laboratory for Materials Science; Institute of Metal Research;The Chinese Academy of Sciences; Shenyang 11001

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 .
, , , , . Formation and Annihilation of Persistent Slip Bands in Fatigued Copper Single Crystals[J]. Acta Metall Sin, 2004, 40(5): 467-470 .

摘要 参考文献 相关文章 Metrics 全文: PDF(5463 KB)   摘要: =[刊，中]///金属学报.¾2004,40(5).¾ 在循环加载条件下, 单滑移取向的Cu单晶体首先出现驻留滑移线(PSL), 然后随着循环周次的增加转变为驻留滑移带(PSB). 在不同温度、不同时间条件下对疲劳Cu单晶进行真空退火处理, 观察PSB结构在热激活条件下的变化情况. 结果表明, 退火处理过程中由于空位浓度差异所产生的渗透力促使位错运动, 并使PSB的某些部位逐步细化, 以至消失. 实现了PSB的分段相消. 在退火过程中由于应变能的逐步释放, 未观察到再结晶现象. 关键词 ： Cu单晶体,  留滑移线,  驻留滑移带     Abstract：In single-slip-oriented copper single crystals which were cyclically deformed under constant plastic shear strain amplitude control, the persistent slip line (PSL) was first formed in the vein dislocation structure of matrix, and then it was rather quickly transformed into persistent slip band (PSB) under consecutive cycling. During annealing for the fatigued copper single crystals with PSBs the penetrating force caused by different void densities drives dislocations motion, makes some parts of PSB thinning and finally PSBs disappeared under the mechanism of annihilation part by part. Because of gradual releasing of the strain energy in annealing process, no recrystallized grain has been observed. Key words： Cu single crystal    persistent slip line (PSL)    persistent slip band (PSB) 收稿日期: 2003-04-18      ZTFLH:  TG111.8   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 朱荣 李守新 李勇 李明扬 晁月盛 44.8K 链接本文: https://www.ams.org.cn/CN/      或      https://www.ams.org.cn/CN/Y2004/V40/I5/467 [1] Mughrabi H. Mater Sci Eng, 1978; 33:207 [2] Suresh S. Frature of Materials. 2nd ed., Cambridge: Cambridge University Press, 1998:43 [3] Li S X, Li Y, Li G Y, Yang J H, Wang Z G, Lu K. Philos Mag, 2002; 82A: 867 [4] Tabata T, Fujita H, Hiraoka M, Onishi K. Philos Mag, 1983; 47A: 841 [5] Wang Z R. Scr Mater, 1998; 34:1255 [6] Xiao S H. PhD Thesis, Institute of Metal Research, The Chinese Academy of Sciences, Shenyang, 2001(肖素红.中国科学院金属研究所博士学位论文,沈阳,2001) [7] Conrad H, Sprecher F A. Dislocation in Solids. Amsterdam: Elsevier, 1989:500 [8] Yang J H, Li Y, Cai Z, Li S X, Ma B T, Han E S, Ke W. Mater Sci Eng, 2003; A345:164 [9] Xiao S H, Guo J D, Wu S D, He G H, Li S X. Scr Mater, 2002; 46:1 [10] Cao W D, Conrad H. Fatigue Fract Eng Mater Struct, 1992; 15:573 [11] Hunscle A, Neumann P. Acta Metall, 1986; 34:207j [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] 张哲峰; 段启强; 王中光 . 铜晶体的疲劳损伤微观机制[J]. 金属学报, 2005, 41(11): 1143-1149 . [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] 肖素红; 吴世丁 . 高密度脉冲电流对Cu单晶体驻留滑移带的影响[J]. 金属学报, 2000, 36(12): 1237-1239 . [7] 李小武; 王中光; 李守新 . 循环变形铜单晶体的滞后回线形状变化与驻留滑移带的萌生[J]. 金属学报, 1999, 35(6): 594-599 . Viewed Full text Abstract Cited   Shared      Discussed