Searched for: collection%3Air
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Zhang, S. (author), Kwakernaak, C. (author), Tichelaar, F.D. (author), Sloof, W.G. (author), Kuzmina, M. (author), Herbig, M. (author), Raabe, D. (author), Brück, E. (author), Van der Zwaag, S. (author), Van Dijk, N.H. (author)
The autonomous repair mechanism of creep cavitation during high-temperature deformation has been investigated in Fe-Au and Fe-Au-B-N alloys. Combined electron-microscopy techniques and atom probe tomography reveal how the improved creep properties result from Au precipitation within the creep cavities, preferentially formed on grain boundaries...
journal article 2015
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Blondé, R.J.P. (author), Jimenez-Melero, E. (author), Huizenga, R.M. (author), Zhao, L. (author), Wright, J. (author), Brück, E.H. (author), Van der Zwaag, S. (author), Van Dijk, N.H. (author)
The martensitic transformation behaviour of the metastable austenite phase in low-alloyed transformation-induced plasticity (TRIP) steels has been studied in situ using high-energy X-ray diffraction during deformation. The austenite stability during tensile deformation has been evaluated at different length scales. A powder diffraction analysis...
journal article 2014
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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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Blondé, R.J.P. (author), Jimenez-Melero, E. (author), Anusuya Ponnusami, S. (author), Zhao, L. (author), Schell, N. (author), Brück, E.H. (author), Van der Zwaag, S. (author), Van Dijk, N.H. (author)
While earlier studies on transformation-induced-plasticity (TRIP) steels focused on the determination of the austenite-to-martensite decomposition in uniform deformation or thermal fields, the current research focuses on the determination of the local retained austenite-to-martensite transformation behaviour in an inhomogeneous yet carefully...
journal article 2014
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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
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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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