Vajingo
Vajingo Reader
11/30/20 12:56 p.m.

No, that's not a made up word. 
https://www.machinedesign.com/materials/article/21836791/the-benefits-of-nitriding-and-nitrocarburizing

I recently ran into a part in my field that is being nitro carburized for increased hardness, strength, less drag coefficient, and corrosion resistance.

looks like we could nitro carburize some items in cars. But- how can we do it on a grassroots level? What's the equipment and process? 

LanEvo
LanEvo GRM+ Memberand Dork
11/30/20 1:26 p.m.

Is that like case hardening?

Vajingo
Vajingo Reader
11/30/20 3:21 p.m.

In reply to LanEvo :

I think so. Basically from what I can tell, you bake the item in a furnace with a particular carbon compound. And that helps at adhere to the metal, providing all sorts of benefits. And from what I can tell no downsides, except maybe you cannot weld to it. 
 


The folks in the knife industry use this stuff apparently. 

Vajingo
Vajingo Reader
11/30/20 3:26 p.m.

Looks like you have to bake @1,650° for 50 mins. 

LanEvo
LanEvo GRM+ Memberand Dork
11/30/20 3:38 p.m.

I only have expertience with it on older Smith & Wesson revolvers going as far back as the 1920s.

They used to case harden their triggers and hammers because you want the steel to be soft (to deal with the shock), but the surface hard enough to avoid wear on sears and notches (that would eventually lead to a sloppy trigger pull). Seems to work well enough.

Looks very cool, too: kind of a brown/gold with blue silver/blue swirls.

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