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Research project (§ 26 & § 27)
Duration : 2017-07-01 - 2018-03-31

The lifetime of wind power plants is limited by failure risks of building and power plant components. Subject of the project are the foundations of wind turbines, which are subjected to high number of oscillating loads during operation. The project partner carries out vibration measurements on foundations. These should be used to characterize the current state. It is believed that fatigue damage caused by vibratory stress is reflected in a change in vibration behavior. The work undertaken at BOKU deals with the analysis of the measured velocity time series. A new algorithm shall automatically obtaine characteristic values ​​of the measured signals, which allow an analysis of the condition of the foundation.
Research project (§ 26 & § 27)
Duration : 2017-01-01 - 2019-12-31

In this project a new type of x-ray microscope with an x-ray “color” camera shall be procured and set up. It will allow for the first time the combination of full-field imaging of the chemical composition and 3D crystallographic analysis of materials with micrometer resolution. This method is of special interest for structurally and chemically inhomogeneous material. The areas of application range from biological systems (biomineralized tissues, self-assembly processes), the non-destructive study of art objects and thin film technology to industrial materials science (nanocomposite materials, nanocrystalline metal alloys etc.)
Research project (§ 26 & § 27)
Duration : 2017-05-01 - 2018-04-30

Increasing the strength of materials typically leads to a loss of toughness. Managing steels are one of the few materials that show very high strength and acceptable toughness. This extraordinary combination of mechanical properties makes this of class materials interesting for load bearing components. Especially applications where a high cyclic strength over long periods of usage is required are fields of applications of maraging steels. Very high cycle fatigue properties of a new developed maraging steel is investigated in the present project. The harmful influence of small secondary phase particles in the material should be experimentally quantified and described in a theoretical model.

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