Скачать с ютуб Self organising steel balls explain metal heat treatment в хорошем качестве

Self organising steel balls explain metal heat treatment

Get 2 months of Skillshare Premium for free at: https://skl.sh/stevemould4 Metals have a crystal structure. But they're not one big crystal, they're lots of small crystals called grains. The size of the grains affects the physical properties of the metal, like hardness, toughness, strength, mailability, ductility, plasticity. Heating a metal can change the size of the grains. This ball bearing model demonstrates annealing. Ductility is dependent on how far dislocations are able to travel in the metal which is dictated by grain size. Original ball bearings video here:    • 3000 ball bearings show crystal defec...   Other metal heat treatment videos here:    • Heat Treatment -The Science of Forgin...      • Properties and Grain Structure   You can buy my books here: https://stevemould.com/books You can support me on Patreon here:   / stevemould   just like these amazing people: Glenn Watson Joël van der Loo Matthew Cocke Mark Brouwer Deneb Image credits: First microscope grain image (1:11): Tugsataydin https://commons.wikimedia.org/wiki/Fi... Second microscope grain image (1:19): Edward Pleshakov https://commons.wikimedia.org/wiki/Fi... Dislocation diagrams (4:14, 4:18): Cdang https://commons.wikimedia.org/wiki/Fi... Twitter:   / moulds   Instagram:   / stevemouldscience   Facebook:   / stevemouldscience   Buy nerdy maths things: http://mathsgear.co.uk