Today we’ll take a deep dive into martensitic transformation in steels, focusing on the characteristics of the transformation, such as nucleation, interface growth and the influence of the cooling rate.

If you want a list of the episodes divided by course, check out this ⁠link⁠.

Today we’ll continue our deep dive into heat treatments of steels, focusing on the quenching process. We’ll also cover the influence of the composition of the steel, size and shape of the part, and the agitation of the medium.Don’t forget to follow and share the podcast so more people can take a deep dive into materials science.

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Today we’ll take a deep dive (or wet our feet) in heat treatments for steels, a common way to change its properties.

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Today we’ll take a deep dive into cast irons, addressing different types, chemical compositions, microstructures, mechanical properties, and the effect of variables such as cooling rate and inoculants on graphite morphology and final properties. The main focus will be on the relationship between microstructure and the properties of different types of cast iron.

If you want a list of the episodes divided by course, check out this link:

https://shorturl.at/DVQV6

Today we’ll deep dive into stainless steels stainless steels, covering their composition, mechanical properties, types (austenitic, ferritic, duplex, martensitic and precipitation hardening), corrosion and oxidation resistance, as well as manufacturing and heat treatment processes.

If you want a list of the episodes divided by course, check out this ⁠link⁠.

What makes iron magnetic but copper non-magnetic?

The answer lies in unpaired electron spins and exchange interactions. This episode classifies all types of magnetic behaviour (diamagnetic, paramagnetic, ferromagnetic, antiferromagnetic, ferrimagnetic), explains hysteresis loops, and covers exciting applications including magnetic hyperthermia for cancer treatment.

Topics: magnetic materials | ferromagnetism | paramagnetism | hysteresis loop | magnetic nanoparticles | magnetic hyperthermia | spintronics.

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Do you know how to select a steel to make a paperclip? With hundreds of steel grades available, how do engineers choose the right one?

This episode explains the AISI/SAE steel classification system, how carbon content and alloying elements determine strength, ductility, hardness, and weldability, and how to read a steel datasheet.

Topics: steel classification | AISI SAE | carbon steel | alloy steel | tool steel | steel selection | mechanical properties of steel.

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Over 1.8 billion tonnes of steel are produced every year. This episode explains the two main production routes: the blast furnace, aka basic oxygen furnace (BOF) route using iron ore, and the electric arc furnace (EAF) route using scrap. We will compare their environmental footprint, product quality, and economics.

Topics: steel production | electric arc furnace | EAF | basic oxygen furnace | BOF | steelmaking | secondary metallurgy.

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Every metal starts as ore, but transforming rock into a usable metal requires overcoming thermodynamic and kinetic barriers.

This episode covers ironmaking in the blast furnace, reduction chemistry, slag formation, and continuous casting, tracing the full journey from raw material to solid steel billet.

Topics: metal extraction | blast furnace | iron ore reduction | slag | continuous casting | steelmaking | pyrometallurgy.

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What makes metals so useful and so diverse?

This introductory episode on metallic materials uses three real-world case studies to explore the relationship between processing, microstructure, and properties: aluminium beverage cans, single-crystal nickel superalloy turbine blades, and tantalum electrolytic capacitors.

Topics: metallic materials | aluminium alloys | nickel superalloys | tantalum capacitor | processing-structure-property | single-crystal turbine blade.

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Disclaimer: This audio is AI generated from personal notes