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Cited 8 time in webofscience Cited 8 time in scopus
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Fatigue damage generation in ECAPed oxygen free copper

Authors
Han, Seung ZeonGoto, MasahiroLim, ChayongKim, Su-HyeonKim, Sangshik
Issue Date
26-Aug-2009
Publisher
ELSEVIER SCIENCE SA
Keywords
Nano-grain; Copper; ECAP; Fatigue; Fatigue damage
Citation
JOURNAL OF ALLOYS AND COMPOUNDS, v.483, no.1-2, pp 159 - 161
Pages
3
Indexed
SCIE
SCOPUS
Journal Title
JOURNAL OF ALLOYS AND COMPOUNDS
Volume
483
Number
1-2
Start Page
159
End Page
161
URI
https://scholarworks.gnu.ac.kr/handle/sw.gnu/26205
DOI
10.1016/j.jallcom.2008.02.115
ISSN
0925-8388
1873-4669
Abstract
In order to understand the fatigue damage generation of ultra-fine grained copper, rotating bending fatigue tests were carried out. After the 4 and 8 pass of ECAP (equal channel angular pressing) with B-c route, grains with about 300 mm diameter were formed. The damage profile of fatigued surfaces between annealed pure copper and ECAPed one had substantial difference in morphology was observed. To clarify the formation process of surface damage, morphological change in surface caused by cyclic stresses was monitored successively by using optical microscope. It was found that the surface damages for the ECAPed copper propagated along the projected direction of shear plane in ECAP process. (C) 2008 Elsevier B.V. All rights reserved.
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대학원 (나노신소재융합공학과)
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