Cryogenic treatment at home?

[mccandmatt]

Why would you ever flex a blade 90*?

Stan

lol I thought the same thing, only time I could conceive of a blade being bent 90[SUP]o[/SUP] is in prototype testing

 

[butcher_block]

cryo after quench as part of the first cooling down (it adds stress at this point and can crak a blade ) then temper x2 or 3 bepending on the data sheet.
i have a SS blade that was cryoed and tempered to 62-63 that i can bend nearly 90 degrees and not have it fail or take a set so its all about how you grind the blade not so much if its been cryoed or not. cryo on alloy steel is there to get rid of RA mainly and gain eta carbids maybe. i cryo overnight then temper in the morning so i dont have to rush my kiln down to 400f (less stress on my kiln the better in my book)

 

[idaho]

cryo after quench as part of the first cooling down (it adds stress at this point and can crak a blade ) then temper x2 or 3 bepending on the data sheet.
i have a SS blade that was cryoed and tempered to 62-63 that i can bend nearly 90 degrees and not have it fail or take a set so its all about how you grind the blade not so much if its been cryoed or not. cryo on alloy steel is there to get rid of RA mainly and gain eta carbids maybe. i cryo overnight then temper in the morning so i dont have to rush my kiln down to 400f (less stress on my kiln the better in my book)

This time I have a proper paper. But in polish and from like 1950 or 1960
There are no differences in wear resistance of 52100 type between quench-temper-cold-temper, and quench-cold-temper-temper. But the later one is more prone to cracking.

 

[Bo T]

In case you are interested. Here is some reading for you - http://www.cryogenictreatmentdatabase.org/ .