Austempering for Bainite - Super Toughness! Media

Published: 4 months ago

Austempering is the process for forming bainite. What is this special microstructure in steel? How does it improve toughness over martensite?

Written version of this video: https://knifesteelnerds.com/2021/06/07/bainite-heat-treatments-of-52100-o1-and-1095-how-much-toughness/

Isothermal martensite vs Sub-Ms Bainite: https://www.sciencedirect.com/science/article/pii/S1044580317302917

00:00 Intro
00:11 Austempering and Bainite
01:29 Salt Furnaces and Salts
02:11 Why Bainite?
05:27 Hardness of Bainite
06:47 Understanding the TTT
14:56 New Experiments
18:08 52100 Results
20:14 O1 Results
23:31 1095 Results
24:55 Austemper High Alloy Steel?
27:03 When Should You Austemper?
28:27 Patreon and Knife Engineering
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