Observation Of The Dislocation Structure In [013] Copper Single Crystal During Corrosion Fatigue In Nacl Aqueous Solution

Acta Metall Sin

2004, Vol. 40

Issue (1): 99-102 DOI:

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Observation Of The Dislocation Structure In [013] Copper Single Crystal During Corrosion Fatigue In Nacl Aqueous Solution

YANG Jihong;JIA Weiping; LI Shouxin

Department of Physics; Shenyang Normal University

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YANG Jihong; JIA Weiping; LI Shouxin. Observation Of The Dislocation Structure In [013] Copper Single Crystal During Corrosion Fatigue In Nacl Aqueous Solution. Acta Metall Sin, 2004, 40(1): 99-102 .

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Abstract The saturation dislocation microstructures in a [013] orientated coppersingle crystal during fatigue in air and NaCl aqueous solutionwere observed by electron channelingcontrast (ECC) technique in SEM and TEM. The resultsshow that the saturation dislocationstructure during the corrosion fatigue in the aqueous solution of 0.5 mol/L NaCl mainly consists of labyrinth and veins dislocation structures, which differs from the dislocation structures of the PSBs and veins in the air environment. The observation reveals that the influence of environment for fatigued dislocation structures is equivalent to increase the plastic shear strain amplitude to the fatigued sample when other conditions are identical.

Key words: copper single crystal corrosion fatigue

Received: 01 January 1900

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	YANG Jihong
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