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Zhang, S. (author), Langelaan, G. (author), Schut, H. (author), Brück, E. (author), Van der Zwaag, S. (author), Van Dijk, N.H. (author)Steels are among the most widely used construction materials as their mechanical properties can be tuned over a very wide range of desired combinations of strength formability and other properties. However, when exposed for long times to high temperatures steel components can exhibit premature and low-ductility creep fracture, which arises from...conference paper 2013
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Zhang, S. (author), Schut, H. (author), Brück, E. (author), Van der Zwaag, S. (author), Van Dijk, N.H. (author)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...journal article 2013
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Ruiz-Ripoll, M.L. (author), Schut, H. (author), Van Dijk, N.H. (author), Alderliesten, R.C. (author), Van der Zwaag, S. (author), Benedictus, R. (author)We have investigated the evolution of damage during fatigue loading in Al–Cu 2024-T3 alloys using the positron annihilation Doppler Broadening (DB) technique. This technique enables us to monitor in a non destructive way, at the atomic and vacancy level, the formation of deformation defects and their interaction with solute atoms at selected...conference paper 2011
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- Van Dijk, N.H. (author), He, S. (author), Paladugu, M. (author), Schut, H. (author), Van der Zwaag, S. (author) conference paper 2011
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He, S.M. (author), Van Dijk, N.H. (author), Paladugu, M. (author), Schut, H. (author), Kohlbrecher, J. (author), Tichelaar, F.D. (author), Van der Zwaag, S. (author)We performed in situ time-resolved small-angle neutron scattering (SANS) measurements on high-purity Fe-Cu and Fe-Cu-B-N alloys during isothermal aging at 550 °C in order to study the potential self-healing of deformation-induced defects by nanosized Cu precipitation. Three different samples with 0%, 8%, and 24% prestrain were used to study the...journal article 2010
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He, S.M. (author), Van Dijk, N.H. (author), Schut, H. (author), Peekstok, E.R. (author), Van der Zwaag, S. (author)We have investigated the influence of deformation-induced defects on the isothermal precipitation at 550?°C in as-quenched (solute-supersaturated) and annealed (solute-depleted) Fe-Cu and Fe-Cu-B-N alloys by positron annihilation spectroscopy and hardness tests. Using the coincidence Doppler broadening technique, the evolution of local...journal article 2010