VC-precipitation kinetics studied by Small-Angle Neutron Scattering in nano-steels

Chrysoula Ioannidou, Zaloa Arechabaleta Guenechea, Arjan Rijkenberg, Robert M. Dalgliesh, Ad van Well, Erik Offerman

Research output: Contribution to journalConference articleScientificpeer-review

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Abstract

Nanosteels are used in automotive applications to accomplish resource-efficiency while providing high-tech properties. Quantitative data and further understanding on the precipitation kinetics in Nanosteels can contribute to fulfil this goal. Small-Angle Neutron Scattering measurements are performed on a Fe-C-Mn-V steel, previously heat-treated in a dilatometer at 650°C for several holding times from seconds to 10 hours. The evolution of the precipitate volume fraction, size distribution and number density is calculated by fitting the experimental Small-Angle Neutron Scattering curves. The effect of phase transformation on precipitation kinetics is also discussed. Complementary Transmission Electron Microscopy, Scanning Electron Microscopy and Inductively Coupled Plasma Optical Emission Spectroscopy measurements are performed to support the Small-Angle Neutron Scattering data analysis.

Bibliographical note

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Keywords

  • Inductively Coupled Plasma Optical Emission Spectroscopy
  • Micro-Alloyed Steels
  • Precipitation Kinetics
  • Scanning Electron Microscopy
  • Small-Angle Neutron Scattering
  • Transmission Electron Microscopy
  • Vanadium Carbides

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