BEHAVIOUR OF Nb BICRYSTALS UNDER TENSION AND CYCLIC DEFORMATION

Acta Metall Sin

1996, Vol. 32

Issue (5): 527-531 DOI:

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BEHAVIOUR OF Nb BICRYSTALS UNDER TENSION AND CYCLIC DEFORMATION

WU Jiansheng; LIN Dangling(Shanghai Jiaotong University; Shanghai 200030)(Manuscript received 1995-10-04)

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WU Jiansheng; LIN Dangling(Shanghai Jiaotong University; Shanghai 200030)(Manuscript received 1995-10-04). BEHAVIOUR OF Nb BICRYSTALS UNDER TENSION AND CYCLIC DEFORMATION. Acta Metall Sin, 1996, 32(5): 527-531.

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Abstract Using Y shape seeds, Nb bicrystals with misorientations 7, 9 and 12°were grown respectively by floating zone method. The tension and cyclic deformation curves of Nb bicrystals have been obtained and compared with that of Nb single crystal. Slip lines on bicrystal specimens after deformation have been observed. It is found that the grain boundary of bicrystal did not affect the deformation bands. Finally the role of the grain boundary during deformation was discussed.

Key words: Nb bicrystal cyclic deformation slip line

Received: 18 May 1996

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https://www.ams.org.cn/EN/ OR https://www.ams.org.cn/EN/Y1996/V32/I5/527

1吴建生,林栋梁．金属学报,1995;31:A902吴建生,林栋梁．金属学报,1994;30:A1873林栋梁,吴建生,陈贤芬．金属学报,1989,25:A1214陈贤芬,吴建生,林栋梁,肖德传,应铁如,黄舂祥,李长英．上海金属(有色分册),1984:2:275 LinDL,WuJS,ChenXFIn:KettunenPOetal．,Eds．Proceedingsof8thInternationalConferenceofStregthofMetalsandAlloys,Tempere,Finland,NewYorkandLondon:PergamanPress,1988;2:7136 AngladaM,,GuiuF．PhilosMag, 1981;44:997林栋梁,吴建生．金属学报,1988:24:A76

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