Self organising steel balls explain metal heat treatment

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  • Published on:  Thursday, August 22, 2019
  • Get 2 months of Skillshare Premium for free at: https://skl.sh/stevemould4Metals 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: https://youtu.be/O3RsDIWB7s0Other metal heat treatment videos here:https://youtu.be/6jQ4y0LK1kYhttps://youtu.be/uG35D_euM-0You can buy my books here:https://stevemould.com/booksYou can support me on Patreon here:https://www.patreon.com/stevemouldjust like these amazing people:Glenn WatsonJoël van der LooMatthew CockeMark BrouwerDenebImage credits:First microscope grain image (1:11):Tugsataydinhttps://commons.wikimedia.org/wiki/Fi...Second microscope grain image (1:19):Edward Pleshakovhttps://commons.wikimedia.org/wiki/Fi...Dislocation diagrams (4:14, 4:18):Cdanghttps://commons.wikimedia.org/wiki/Fi...Twitter: http://twitter.com/mouldsInstagram: https://www.instagram.com/stevemoulds...Facebook: https://www.facebook.com/stevemouldsc...Buy nerdy maths things: http://mathsgear.co.uk
  • Source: https://youtu.be/xuL2yT-B2TM
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