Fatigue behaviour of ultrafine-grained copper in very high cycle fatigue regime

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68081723%3A_____%2F08%3A00361156" target="_blank" >RIV/68081723:_____/08:00361156 - isvavai.cz</a>

Result on the web

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DOI - Digital Object Identifier

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Result language

angličtina

Original language name

Fatigue behaviour of ultrafine-grained copper in very high cycle fatigue regime

Original language description

Fatigue life of ultrafine-grained copper of conventional purity produced by equal-channel angular pressing by route Bc was determined under controlled stress conditions at ultrasonic and 200 Hz frequency and compared with the fatigue life of conventional-grained copper. The fatigue life of ultrafine-grained copper was found to be significantly higher than that of copper with conventional grain size. No grain coarsening was detected by means of transmission electron microscopy and electron back scattering diffraction after application of 1010 cycles. Fatigue slip markings on the surface, which are sites of crack initiation, tend to follow the shear planes of the ECAP process. The distribution of fatigue slip markings on the surface is very inhomogeneous. The mechanism of their formation at loading in very high cycle region consisting in cooperative grain boundary sliding along preferential planes related to the ECAP process is discussed.

Czech name

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Czech description

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Type

J_x - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

CEP classification

JG - Metallurgy, metal materials

OECD FORD branch

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Project

<a href="/en/project/1P05ME804" target="_blank" >1P05ME804: Fatique behaviour of ultra fine-grained copper and magnesium alloy materials</a><br>

Continuities

Z - Vyzkumny zamer (s odkazem do CEZ)

Publication year

2008

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Materiálové inžinierstvo - Materials Engineering

ISSN

1335-0803

e-ISSN

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Volume of the periodical

15

Issue of the periodical within the volume

4

Country of publishing house

SK - SLOVAKIA

Number of pages

5

Pages from-to

1-5

UT code for WoS article

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EID of the result in the Scopus database

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