Self organising steel balls explain metal heat treatment
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Self organising steel balls explain metal heat treatment
Steve Mould
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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: https://youtu.be/O3RsDIWB7s0
Other metal heat treatment videos here:
https://youtu.be/6jQ4y0LK1kY
https://youtu.be/uG35D_euM-0
You can buy my books here:
https://stevemould.com/books
You can support me on Patreon here:
https://www.patreon.com/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: http://twitter.com/moulds
Instagram: https://www.instagram.com/stevemoulds...
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https://youtu.be/xuL2yT-B2TM
Steve Mould
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: https://youtu.be/O3RsDIWB7s0
Other metal heat treatment videos here:
https://youtu.be/6jQ4y0LK1kY
https://youtu.be/uG35D_euM-0
You can buy my books here:
https://stevemould.com/books
You can support me on Patreon here:
https://www.patreon.com/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: http://twitter.com/moulds
Instagram: https://www.instagram.com/stevemoulds...
Facebook: https://www.facebook.com/stevemouldsc...
Buy nerdy maths things: http://mathsgear.co.uk
https://youtu.be/xuL2yT-B2TM