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heat treatment of titanium

heat treatment of titanium

heat treatment of titanium

(OP)
Does any one know how I can heat treat titanium. I want to make a knife but I would like harden it so it can hold a good cutting edge. thanks

RE: heat treatment of titanium

Titanium will not make a good knife.
There are surface treatments that will impart sufficient hardness for an edge but will not take any sharpening.   At maximum hardness of Ti6Al-4V will not hold an edge.  Some of the new alloys will get to the mid 40's on the Rc scale which still will not make a good edge. There are several new stainless alloys that will make a good knife and hold an edge.  I made a 440C knife with a hardness of Rc 63 and have used it for salt water fishing for over 30 yrs.  Most of the Titanium knives you see are actually SS with a coating of Titanium Nitride.   I also have heard of a powder metallurgy knife of Titanium Carbide, good but big bucks.

My coworker bought a Titanium Dive Knife from Italy and it broke on the first use.  The replacement came with a caution stating that this was a backup knife and not to be consider as a primary.

Unless they have something new in the last two years I would stay away from an all Titanium blade.

RE: heat treatment of titanium

(OP)
Thanks!

RE: heat treatment of titanium

You also might want to look at Hitachi ATS34.

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