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"Talonite" by Chuck Bybee

"Talonite- New Blade Material" by Chuck BybeeWhat Is Talonite?

Talonite® is a Cobalt-Chromium alloy. When it is made the Chromium and Molybdenum combine chemically with the carbon to form Chromium carbide and Molybdenum carbide. The cobalt forms a soft and strong matrix that holds the carbide grains in place. This means that a Rockwell or other hardness tests will test the matrix and give relatively low readings however the hardness and wear resistance is in the carbide particles.

Why Talonite Cuts so Well - Lubricity

Talonite® is much slicker than steels so it wears much longer. Talonite® has outlasted 6K by 35% in wear tests. These were wear tests in a cereal manufacturing plant. The abrasive substance was organic fibers in corn and wheat. Talonite® rates much higher than steel and much closer to diamond or Teflon in slickness. Talonite® is slicker so it also cuts faster and easier. Machinery's Handbook, 24th Edition says that these alloys can be run 20% to 50% faster than high-speed steels when cutting.

Corrosion Resistance

The development of high speed and high temperature turbines for jet engines led to the development of a new Haynes alloy. A good way to understand the corrosion resistance of Talonite® is to think of a Navy fighter that sucks sand into the engine flying out of Pensacola and sucks seawater in landing on a carrier. Talonite® is used regularly in applications such as sawing green lumber in a sawmill. Highly corrosive organic acids, high heat from friction and cut lengths of millions of inches as well as interrupted cuts and intense thermal cycles, (extremely hot in the cut and out into flood coolant). Talonite® makes an excellent dive knife. It does not rust by the usual definitions, however it is technically susceptible to chemical attack. Generally it requires something on the order of boiling 20% acid solution such as hydrochloric acid or sulfuric acid for weeks or months. Talonite® was developed for rough environments. If your instruments were really good you might detect corrosion in salt water after a thousand years.

Talonite Compared To Steel

Talonite® is an alloy that is primarily cobalt and chrome with only a very small percent of iron in it. Steel is iron with a very little bit of carbon in it. (Iron with .1 - .3% carbon and a maximum of about 2.5%). Talonite® is very different than steel and cannot be compared one to one with steels. Talonite® has a lower Rockwell than some steels but it contains carbide grains. It is softer on a Rockwell test but much more wear resistant than steels. In addition to the hardness of the carbides it also has about a 30% greater lubricity. Talonite® can be sharpened to a razor edge as well as any other material, however it will cut much better than other materials with an equivalent edge because it is much slicker. Steels have a greater tendency to grab in the cut. The grabbing creates more work and dulls the edge faster.

Catalytic Chemistry

The metals that go into an alloy are part of what determines its quality. Time, temperature, number of steps, kind of steps, and quality of ingredients also determine the quality. Talonite® is superior because it is made using more sophisticated chemistry. A catalytic additive can give an alloy smaller carbide grains, which makes it more wear resistant. A catalyst can alter the structure of the cobalt bonding mechanisms so they grow more slowly and more evenly, which gives a structure that is both softer (resists impact) and tougher (resists to tearing or rupture).

Talonite Is Expensive

It is a performance alloy first, last and always. It was developed to withstand tremendous abuse in jet engines and other applications. Jet engine turbine blades have to keep an exact edge no matter what gets sucked in. Even the wear from air passing over them is more than a knife will ever see. This alloy was designed without cost in mind. Fortunately it is such an excellent alloy that the demand has brought the price down but it is still about $200 a pound. Even though Talonite is 20, 50, 100 times as expensive as steel it is so popular that the big problem has been getting enough of it made. There is only one plant in the world that is precise enough to make alloy this good.

Talonite Is Hard To Work

It takes more time and material to make a knife with Talonite as it does with other materials. Talonite is very wear resistant when being shaped to make a knife. Talonite knives sell for more than knives in lesser materials. However Talonite knives are so good that they are a bargain even at these prices.

Talonite Is New It Is Expensive And

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Chuck, Brenda & Jessica Bybee
http://www.alphaknifesupply.com http://www.titanium-man.com titanium.man@gte.net
Phone: 425-868-5880


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