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Cell structure in cold worked and creep deformed phosphorus alloyed copper
RISE, Swerea, Swerea KIMAB.
RISE, Swerea, Swerea KIMAB.
RISE, Swerea, Swerea KIMAB.
RISE, Swerea, Swerea KIMAB.
2014 (English)In: Materials Characterization, ISSN 1044-5803, E-ISSN 1873-4189, Vol. 90, p. 21-30Article in journal (Refereed)
Abstract [en]

Transmission electron microscopy (TEM) examinations on as-received, cold worked, as well as cold worked and creep tested phosphorus-alloyed oxygen-free copper (Cu-OFP) have been carried out to study the role of the cell structure. The cell size decreased linearly with increasing plastic deformation in tension. The flow stress in the tests could also be correlated to the cell size. The observed relation between the flow stress and the cell size was in excellent agreement with previously published results. The dense dislocation walls that appeared after cold work in tension is likely to be the main reason for the dramatic increase in creep strength. The dense dislocation walls act as barriers against dislocation motion and their presence also reduces the recovery rate due to an unbalanced dislocation content. © 2014 Elsevier Inc.

Place, publisher, year, edition, pages
2014. Vol. 90, p. 21-30
Keywords [en]
Cell, Cold work, Creep, Cu-OFP, Dislocation, TEM
National Category
Materials Engineering
Identifiers
URN: urn:nbn:se:ri:diva-12795DOI: 10.1016/j.matchar.2014.01.007Scopus ID: 2-s2.0-84893873088OAI: oai:DiVA.org:ri-12795DiVA, id: diva2:972988
Available from: 2016-09-22 Created: 2016-09-22 Last updated: 2017-11-21Bibliographically approved

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