Publications

De α+ β fases Ti-6Al-4V legering heeft een brede toepassing in industriële gebieden vanwege de uitstekende eigenschappen, waaronder een hoge sterkte-gewicht verhouding, goede corrosiebestendigheid en uitstekende biocompatibiliteit. De inzetbaarheid kan sterk worden verbeterd met verschillende microstructuren, verkregen door verschillende nabehandelingen. De laatste decennia is de relatie tussen de microstructuur, de eigenschappen en de ...

Microstructural engineering is at the core of a never ending quest for better performing materials. A key microstructural parameter which affects the physical, mechanical, chemical and biochemical properties of metals is their grain size. The grain size can be reduced considerably by imposing large plastic deformations. In this thesis, a static and dynamic setup, designed and realized within the framework of previous projects, was used to study ...

The microstructure of alkali-reactive aggregates, especially the spatial distribution of the pore and reactive silica phase, plays a significant role in the process of the alkali silica reaction (ASR) in concrete, as it determines not only the reaction front of ASR but also the localization of the produced expansive product from where the cracking begins. However, the microstructure of the aggregate was either simplified or neglected in the ...

During the past decades, a significant progress has been made in the development of concrete materials. With the development of high performance and self-compacting concrete, the design of concrete structures for hundred-year service life becomes possible. In recent years, concrete has been considered as a useful material for facilities with extremely long-term service life such as radioactive waste repositories. Therefore, the assessment of the ...

With the development of concrete technology, fillers are widely used in high performance concrete to improve its properties. Among them, limestone powder is popularly added in self-compacting concrete to gain good flowability. However, by lack of experimental data, several materials properties after the addition of limestone powder are still not sure, which actually yield some uncertainty for the further use of limestone powder in cement-based ...

Low alloy transformation-induced plasticity aided (TRIP) steels have attracted much interest over the last years. TRIP steels were initially developed for automotive applications as they offer an excellent combination of strength and ductility at reasonable costs. These excellent mechanical properties mainly arise from a complex multiphase microstructure of a ferrite matrix and a dispersion of multiphase grains of bainite, martensite and ...

Dual-phase low-alloy steels combine a soft ferrite phase with a hard martensite phase to create desirable properties in terms of strength and ductility. Nickel additions to dual-phase low-alloy steels can increase the yield strength further and lower the transformation temperatures, allowing for microstructure refining. Determining the correct intercritical annealing temperature as a function of nickel content is paramount, as it defines the ...