Important Info! Metallurgical Discussion and Heat Treatment Sticky - find Good HT info here

To comment on any thread linked in this sticky, just open the link and you will be on that thread.

Larrin, Devin Thomas' son, is a metallurgist who freely gives his knowledge here. We greatly appreciate his deep theoretical info. It make my head hurt sometimes.
His threads are linked below:

All about austenitizing and Larrin's discussion website - https://xf.bladeforums.com/threads/...g-on-new-website-knifesteelnerds-com.1559302/

Steel Flex and HT:
https://xf.bladeforums.com/threads/why-doesnt-heat-treating-affect-steel-flex.1560388/


Other readily needed info -
The Bladeforums Custom Search Engine is here:
https://cse.google.com/cse/publicurl?cx=012217165931761871935:iqyc7cbzhci
It will find all sorts of threads and info.

First, some basic HT info:

Metallurgy - The Science of What is Happening in the Steel

A brief list of Metallurgical and Heat Treatment terms

Metallurgy resources and books

Links to other metallurgy and knife websites:
Steel University Online
http://www.bladeforums.com/forums/showthread.php/1395905-The-science-behind-steel-Steel-University

 

Threads on General Heat Treatment Advice

Kevin Cashen - Working with Three Steels:
http://www.bladeforums.com/forums/showthread.php/673173-Working-the-three-steel-types

Kevin Cashen on Heat Treatment:
http://www.bladeforums.com/forums/s...ealing-or-Heat-treating?p=9143684#post9143684

Heat Treatment and Metallurgy - Post #4, #6, #7:
http://www.bladeforums.com/forums/s...reads-All-The-Good-Info-You-Want-In-One-Place

Tempering in Oil - Bad Idea:
http://www.bladeforums.com/forums/showthread.php/1393000-Tempering-in-oil

Information on Quench Procedures and Cooling Curve
(post #9)
http://www.bladeforums.com/forums/s...sating-for-heat-loss-on-the-way-to-the-quench

 

Forge HT and Back Yard HT

Forge HT and Thremal Cycling:
http://www.bladeforums.com/forums/showthread.php/1395570-Thermal-cycling-with-a-forge

Normalizing in a Forge:
http://www.bladeforums.com/forums/showthread.php/1395848-Normalizing-carbon-steel-in-a-forge

 

1084, 1095, W2, 52100 HT threads

W2 - Info and Tips Thread
http://www.bladeforums.com/forums/showthread.php/1397069-W2?p=16101160#post16101160


52100 HT:
http://www.bladeforums.com/forums/showthread.php/1395697-52100-heat-treat-question-thermal-cycling

W2 tempering:
http://www.bladeforums.com/forums/showthread.php/1395708-Tempering-time-from-quench-for-W2

52100 Alternate HT - "Epic Failure" Thread:
http://www.bladeforums.com/forums/s...2100-(Aldo-s)-alternate-heat-treat-Epic-Fail-

Old Discussion on W2 and Similar HT:
http://www.bladeforums.com/forums/showthread.php/487641-W2-Heat-Treating-HELP

Basic 1095 HT - Foolproof:
Heat evenly to 1475F for 10 minutes then immediately quench in fast oil (fast enough to cool the steel through the 1200F-1000F in less than .5 seconds). For simplicity sake cool to at least 150F before tempering. This should get you a full 65HRC hardness with no problem, tempering should be done without delay. Tempering should be for 2 hours at the temperature to reach the desired final hardness. 400F to 450F is a good range for knife blades.

1095 HT and Micro-chipping info
http://www.bladeforums.com/forums/showthread.php/1397022-heat-treating-1095-advice

 

Triple Quench and Triple Normalization threads - Spheroidite

Triple Quench Discussion:
http://www.bladeforums.com/forums/showthread.php/1396046-Triple-quench


Devin Thomas on Fine Spheroidite vs Coarse Spheroidite:
http://www.bladeforums.com/forums/showthread.php/1396542-Fine-spheroidite-vs-coarse-spheroidite

Chuck - Alpha Knife Suply - Spheroidite
http://www.bladeforums.com/forums/showthread.php/1396324-Spheroidize-Annealed-Steels

 

Aldo's Steel HT and Spheroidized Steel threads ( New Jersey Steel baron)

The steel from Aldo Bruno ( New Jersey Steel baron) and some other suppliers comes fully spheroidized. This means the carbon is balled up in balls and rods of carbides. This makes it easier to cut, drill, and file ... but has to be reversed in HT to get the steel fully hard. The below threads are on that topic.

 

Forges and Ovens - threads on Building Them and related discussions about Use and Problems

PID Controlled Forge:
http://www.bladeforums.com/forums/s...ontrolled-Forge-Heat-Treat-oven-plans-amp-WIP

Uneven Heat Issues:
http://www.bladeforums.com/forums/showthread.php/1396173-Evenheat-too-hot-in-the-back

Table/Tunnel Forge and Ribbon Burner:
http://www.bladeforums.com/forums/showthread.php/934512-Table-Forge-with-Ribbon-Burner

2 Brick Forge:
http://www.bladeforums.com/forums/showthread.php/920120-Virtual-BBQ-2-Brick-Forge-WIP

Chimney on a Forge?:
http://www.bladeforums.com/forums/showthread.php/1393896-Chimney-on-a-forge

Blown Burners:
http://www.bladeforums.com/forums/showthread.php/1392457-help-with-forced-air-burner-blowers
https://www.bladeforums.com/threads/forced-air-burner-forge-build.1584591/

Venturi Burner Build:
https://www.bladeforums.com/threads/building-a-venturi-burner-for-21.1652979/

 

Specialty Heat Treatments and Steels that Require special Treatment Threads

Kevin Cashen on L-6:
http://www.bladeforums.com/forums/showthread.php/655904-All-about-L6

D2:
http://www.bladeforums.com/forums/showthread.php/1393626-D2-heat-treat

Hitach Steels Info -- post #14:
http://www.bladeforums.com/forums/s...reads-All-The-Good-Info-You-Want-In-One-Place

Hitachi Steel HT:
http://www.bladeforums.com/forums/showthread.php/1185397-Hitachi-Steel-Heat-Treatment

Hitachi Steels
http://www.bladeforums.com/forums/s...el-Heat-Treat-Process?p=16104069#post16104069

O-1:
http://www.bladeforums.com/forums/showthread.php/581032-Heat-treating-01-tool-steel-help

Quench Cooling Rates:
http://www.bladeforums.com/forums/s...site-percentage-relation-for-high-alloy-steel

 

Miscellaneous Heat Treatment Discussions

Heat Treatment and Metallurgy - Post #4, #6, #7:
http://www.bladeforums.com/forums/s...reads-All-The-Good-Info-You-Want-In-One-Place


Multiple Knife Quenching in Oil:
http://www.bladeforums.com/forums/showthread.php/1396214-Multiple-Knife-Heat-Treat-in-Oil

 

Hamon Threads and discussions

刃文
文 = blade 刃 = pattern

Hamon - Ha - edge, mon - line/mark/wave
ha-mon - the wavy line along the edge. In the old form, the word meant waves along the shore.

Pronounced hah - moan

Good discussion on making and polishing a hamon.
http://www.bladeforums.com/threads/the-hamon-thread.1459372/

 

HT program for annealing D2 with a Rampmaster Cpntrol

https://www.bladeforums.com/threads/evenheat-rampmaster-annealing-d2.1524090/