Recrystallization of fatigued copper single crystals under electropulsing | |
Xiao, SH; Guo, JD; Wu, SD; He, GH; Li, SX | |
通讯作者 | Xiao, SH() |
2002-02-01 | |
发表期刊 | ACTA METALLURGICA SINICA
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ISSN | 0412-1961 |
卷号 | 38期号:2页码:161-165 |
摘要 | Fatigued copper single crystal with [123] loading axis was treated by high current density electropulsing. and formed two kinds of recrystallized grains with polygonal shape and 7.2-8.8 mum in size, and with ellipsoidal shape and 5.3-8.0 mum in size. The annihilation of dislocations caused by high current electropulsing increases the dislocation density gradient over which local inhomogeneous dislocation structures promotes the formation of recrystallized nuclei. Due to the homogeneous distribution of the vein structures, the recrystallized grains around this region do not process a specific directionality. On the other hand, the recrystallized grains formed around persistent slip bands show bigger grain sizes along the direction parallel to Burgers vector presumably due to the dislocations motion being easier along this direction. The higher temperature rise in persistent slip bands caused by electropulsing than in vein structure increases the possibility of dislocations motion, and leads to the existence of sonic distances between recrystallized grains. Because of the very short treating time under high current elect repulsing, the grains have no enough time to grow, and so the recrystallized grains are of finer sizes. |
关键词 | copper single crystal fatigue recrystallization electropulsing |
收录类别 | SCI |
语种 | 英语 |
WOS研究方向 | Metallurgy & Metallurgical Engineering |
WOS类目 | Metallurgy & Metallurgical Engineering |
WOS记录号 | WOS:000174398200012 |
出版者 | SCIENCE CHINA PRESS |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://ir.imr.ac.cn/handle/321006/115431 |
专题 | 中国科学院金属研究所 |
通讯作者 | Xiao, SH |
作者单位 | 1.Chinese Acad Sci, Met Res Inst, Shenyang 110016, Peoples R China 2.Chinese Acad Sci, Shenyang Natl Lab Mat Sci, Inst Met Res, Shenyang 110016, Peoples R China |
推荐引用方式 GB/T 7714 | Xiao, SH,Guo, JD,Wu, SD,et al. Recrystallization of fatigued copper single crystals under electropulsing[J]. ACTA METALLURGICA SINICA,2002,38(2):161-165. |
APA | Xiao, SH,Guo, JD,Wu, SD,He, GH,&Li, SX.(2002).Recrystallization of fatigued copper single crystals under electropulsing.ACTA METALLURGICA SINICA,38(2),161-165. |
MLA | Xiao, SH,et al."Recrystallization of fatigued copper single crystals under electropulsing".ACTA METALLURGICA SINICA 38.2(2002):161-165. |
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