Print Email Facebook Twitter Effect of carbon on copper precipitation in deformed Fe-based alloys studied by positron annihilation spectroscopy Title Effect of carbon on copper precipitation in deformed Fe-based alloys studied by positron annihilation spectroscopy Author Zhang, S. Schut, H. Brück, E. Van der Zwaag, S. Van Dijk, N.H. Faculty Applied Sciences Date 2013-06-10 Abstract The role of deformation-induced defects and carbon addition on the copper precipitation during aging at 550 oC is investigated in high-purity Fe-Cu-B-N-C alloy samples by Coincidence Doppler Broadening. In samples with 0% and 8% cold pre-strain, the influence of tensile pre-deformation on the precipitation kinetics of copper is studied. The deformation-induced defects are found to enhance the Cu precipitation kinetics. A sharp reduction in open volume defects is accompanied with a strong increase of Cu signature during the initial stage of aging, implying that the open defects (mainly dislocations) act as nucleation sites for Cu precipitates. A comparison of the time evolution of S-W plots between Fe-Cu, Fe-Cu-B-N, and Fe-Cu-B-N-C alloys indicates that the addition of carbon does not alter the Cu precipitation mechanism but decelerates the kinetics. To reference this document use: http://resolver.tudelft.nl/uuid:4e70b4a1-abd6-477c-8c36-cd32607e2820 DOI https://doi.org/10.1088/1742-6596/443/1/012027 Publisher IOP Publishing ISSN 1742-6596 Source http://iopscience.iop.org/1742-6596/443/1 Source Journal of Physics: Conference Series, 443 (012027), 2013 Part of collection Institutional Repository Document type journal article Rights (c) 2013 The authorsContent from this work may be used under the terms of the Creative Commons Attribution 3.0 licence. Any further distribution of this work must maintain attribution to the author(s) and the title of the work, journal citation and DOI.Published under licence by IOP Publishing Ltd Files PDF 1742-6596_443_1_012027.pdf 912.44 KB Close viewer /islandora/object/uuid:4e70b4a1-abd6-477c-8c36-cd32607e2820/datastream/OBJ/view