Materials Performance and Degradation

Materials Performance and Degradation

Research in materials performance and materials degradation is concentrated on corrosion, tribology and high temperature performance (creep and corrosion).

The strategy in this research is to investigate, identify and understand the degradation mechanisms that affect the performance of materials and to use this understanding as input for the life expectancy and design of improved materials solutions, for example by surface engineering. 

The Centre of Corrosion in Electronics (CELCORR) focuses on the environmental reliability of microelectronics, which due to the miniaturization of multi-material technology is an increasing problem. The activities at CELCORR follow an integrated approach, aiming at embedding Design for Reliability (DFR) in electronics at materials, component, printed circuit board assembly (PCBA), and device level. The industrial consortium CreCon under CELCORR has (inter)national companies as members.  

Wear is often assisted and aggravated by other degradation mechanisms. Mitigating wear of orthopedic implants focuses on surface modification of metal alloys as well as on injection of external lubricants into synovial joints. Tribo-corrosion is investigated in aqueous and biological environments, for example for innovative coatings/alloys for implants. Corrosion and mechanical wear or fatigue is causing materials failure in diverse applications. Focus is on establishing on-line monitoring setups in order to understand failure modes in detail.

Biomass is CO2 neutral but causes severe corrosion problems in high temperature heat exchangers. Consequently, (co-)firing biomass limits the operation temperature to 540 ˚C. Corrosion management and new coating materials for improved protection are addressed in several research and demonstration projects.

Premature bearing failures in wind turbine components are studied extensively. Application of surface engineered materials solutions shows promising results and will be investigated in detail in the future.

 

https://www.mek.dtu.dk/english/Sections/MTU/Research/Materials-performance-and-degradation
5 APRIL 2020