The description of tribocorrosion phenomena and mechanisms through tailored experimental approaches and theoretical models has allowed gaining understanding in the response of materials operating under different tribological contacts in reactive environments. At present, the complex interactions between chemical and mechanical phenomena have been rationalized through comprehensive models...
Bearings are versatile machine components –they are found in a wide variety of environments, some of which contain high amounts of hydrogen. With the transition to a greener economy, it is time to revisit applications where hydrogen is a critical constituentin the environment. One product segment of particular interest is pumps and compressors, which have to be designed to operate to pressures...
Tribocorrosion of hydrogen-embrittled steel is a critical concern for materials used mostly in harsh environments, particularly in applications involving high mechanical stress and corrosive conditions. Hydrogen uptake by steel structures, induced by an electrochemical process, can cause degradation of mechanical properties and induce cracks. It is widely known as hydrogen embrittlement....
It has been established that hydrogen diffusion can significantly influence the mechanical response of metallic materials under various loading conditions. This phenomenon is particularly evident in reducing the ability for plastic deformation. The formation and collapse of bubbles inside a fluid, i.e., cavitation near a solid surface generates one of the most complex loading scenarios. The...
Low-speed two-stroke engines have powered marine transportation for over a century and remain the standard propulsion system for marine transport due to their high efficiency and reliability. Today, as the maritime industry aims to reduce greenhouse gas (GHG) emissions to zero by about mid of the century, technological innovation is key to achieving a sustainable future.
As a leading...
In modern societies, efficient and resilient production and processing of energy are key requirements for a circular economy, which safes resources and reduces pollution of our natural environment. Therefore, the international climate agreement (Paris 2015) has set the maximum allowed global warming from the beginning of the industrial age below 2°, which needs a drastic reduction of...
The global transition to renewable energy depends heavily on the utilization of hydrogen. Since hydrogen is of low density and gaseous, it must be compressed to pressures exceeding 500 bar to achieve practical energy density for efficient storage and transport. This demands compressors with long service life and high efficiency. To achieve this, reciprocating piston compressors rely on...
The development of robust preclinical evaluation techniques for orthopaedic implants is critical in light of recent high-profile implant failures and the increasing regulatory demands of EU MDR and FDA guidelines. This study introduces a novel framework integrating real-time wear-corrosion and wear debris analysis techniques for the comprehensive assessment of implant degradation...