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Corrosion
This steel like any other steel when distorted by cold worki...

Classifications Of Steel
Among makers and sellers, carbon tool-steels are classed by g...

The Forging Of Steel
So much depends upon the forging of steel that this operation...

Machineability
Reheating for machine ability was done at 100 deg. less than ...

Preventing Decarbonization Of Tool Steel
It is especially important to prevent decarbonization in such...

Carbon Steels For Different Tools
All users of tool steels should carefully study the different...

Placing The Thermo-couples
The following illustrations from the Taylor Instrument Compan...

Flange Shields For Furnaces
Such portable flame shields as the one illustrated in Fig. 1...

Tool Or Crucible Steel
Crucible steel can be annealed either in muffled furnace or b...

Drop Forging Dies
The kind of steel used in the die of course influences the he...

Hardening High-speed Steel
In forging use coke for fuel in the forge. Heat steel slowly ...

Tempering Round Dies
A number of circular dies of carbon tool steel for use in too...

The Penetration Of Carbon
Carburized mild steel is used to a great extent in the manufa...

Alloying Elements
Commercial steels of even the simplest types are therefore p...

Affinity Of Nickel Steel For Carbon
The carbon- and nickel-steel gears are carburized separately...

Effects Of Proper Annealing
Proper annealing of low-carbon steels causes a complete solu...

For Milling Cutters And Formed Tools
FORGING.--Forge as before.--ANNEALING.--Place the steel in a ...

Heating
Although it is possible to work steels cold, to an extent de...

Correction For Cold-junction Errors
The voltage generated by a thermo-couple of an electric pyrom...

The Effect Of Tempering On Water-quenched Gages
The following information has been supplied by Automatic and ...



Vanadium






Category: ALLOYS AND THEIR EFFECT UPON STEEL

Vanadium has a very marked effect upon alloy steels rich in chromium,
carbon, or manganese. Vanadium itself, when combined with steel very
low in carbon, is not so noticeably beneficial as in the same carbon
steel higher in manganese, but if a small quantity of chromium
is added, then the vanadium has a very marked effect in increasing
the impact strength of the alloy. It would seem that vanadium has
the effect of intensifying the action of chromium and manganese, or
that vanadium is intensified by the action of chromium or manganese.

Vanadium has the peculiar property of readily entering into solution
with ferrite. If vanadium contained is considerable it also combines
with the carbon, forming carbides. The ductility of carbon-vanadium
steels is therefore increased, likewise the ductility of chrome-vanadium
steels.

The full effect of vanadium is not felt unless the temperatures to
which the steel is heated for hardening are raised considerably.
It is therefore necessary that a certain amount of soaking takes
place, so as to get the necessary equalization. This is true of all
alloys which contain complex carbides, i.e., compounds of carbon,
iron and one or more elements.

Chrome-vanadium steels also are highly favored for case hardening.
When used under alternating stresses it appears to have superior
endurance. It would appear that the intensification of the properties
due to chromium and manganese in the alloy steel accounts for this
peculiar phenomenon.

Vanadium is also a very excellent scavenger for either removing
the harmful gases, or causing them to enter into solution with the
metal in such a way as to largely obviate their harmful effects.
Chrome-vanadium steels have been claimed, by many steel manufacturers
and users, to be preferable to nickel-chrome steels. While not
wishing to pass judgment on this, it should be borne in mind that
the chrome-vanadium steel, which is tested, is generally compared
with a very low nickel-chromium alloy steel (the price factor entering
into the situation), but equally good results can be obtained by
nickel-chromium steels of suitable analysis.

Where price is the leading factor, there are many cases where a
stronger steel can be obtained from the chrome and vanadium than
the nickel-chrome. It will be safe to say that each of these two
systems of alloys have their own particular fields and chrome-vanadium
steel should not be regarded as the sole solution for all problems,
neither should nickel-chromium.





Next: Manganese

Previous: Nickel-chromium



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