Sustainability of metals & their role in a circular economy @bhadeshia123

bhadeshia123 | Sustainability of metals & their role in a circular economy @bhadeshia123 | Uploaded October 2021 | Updated October 2024, 7 hours ago.
Lecture by Professor Dierk Raabe, in a series entitled "Metallic Microstructures", organised by KTH Stockholm, Gent University and Delft University of Technology.

There are approximately 2 billion tons of extremely useful metals produced each year but their production is associated with the emission of large amounts of greenhouse gases and pollutants. The lecture is about pathways for the sustainable use of structural metals, with reduced carbon-dioxide emissions, recycling, scrap-compatible alloy design, contaminant-tolerance of alloys and improved alloy longevity. Also discussed is the efficacy and technological readiness of individual measures.

Advanced high-strength steels: forming and guidelines, by Dr Danny Schaeffler

Steels 2022: martensite, Lecture 1 of 11

Multicomponent phase diagrams - how to visualise

Kinetic Simulation of Steelmaking and Steel Refining using Thermo-Calc, by Dr Nicholas Grundy

$Atomic mechanism of acicular ferrite transformation in steels Non-metallic inclusions are anathema when it comes to the design of strong steels because they become the initiation sites for fracture. Huge efforts have been made devoted to making clean steels - the oxygen concentration of a hard bearing steel is routinely less than 10 ppm. However, there are other structural steels that have to be welded where the localised heat input generates microstructures in the heat-affected zone that are undesirable. The alloys that are used to deposit the weld must have good properties in the as-cast state. In both of these circumstances, specific non-metallic inclusions are a positive boon in that they provide substrates for the intragranular nucleation of bainite. As a consequence, highly organised sheaves of bainite are altered into a more chaotic arrangement that frequently deflects propagating cracks and hence enhances the toughness. This is the so-called acicular ferrite that is the subject of this lecture.$

Some steels research at the Universidad Federal Fluminense, Brazil

Crystallography, martensitic transformation. Lecture 9 of 9