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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
ISSN0412-1961
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
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被引频次:6[WOS]   [WOS记录]     [WOS相关记录]
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
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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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