Title of article :
Deformation bands and dislocation structures of [1̄ 5 5] coplanar double-slip-oriented copper single crystal under cyclic deformation
Author/Authors :
Li، نويسنده , , Y. and Li، نويسنده , , S.X. and Li، نويسنده , , G.Y.، نويسنده ,
Issue Information :
روزنامه با شماره پیاپی سال 2004
Pages :
6
From page :
75
To page :
80
Abstract :
The features of surface morphology and dislocation structure of [1̄ 5 5] coplanar double-slip-oriented copper single crystal under cyclic deformation at a constant plastic shear strain amplitude of 2×10−3 were studied using optical microscope (OP) and electron channelling contrast imaging (ECCI) in the scanning electron microscope (SEM). Experimental results show that there are two sets of the secondary type of deformation band (DBII) formed in the specimen. The geometry relationship of the two sets of deformation bands (DBs) and slip band (SB) are given. The habit planes of DBIIs are close to (1̄ 0 1) and (1̄ 1 0) plane, respectively. The surface dislocation structures in the specimen including vein, irregular dislocation cells and dislocation walls were also observed. The typical dislocation structure in DBII is the dislocation walls.
Keywords :
Deformation band , Dislocation structure , Coplanar double-slip , Copper single crystal , cyclic deformation
Journal title :
MATERIALS SCIENCE & ENGINEERING: A
Serial Year :
2004
Journal title :
MATERIALS SCIENCE & ENGINEERING: A
Record number :
2143814
Link To Document :
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