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Heat Treatment Of Steel
Heat treatment consists in heating and cooling metal at defin...

Compensating Leads
By the use of compensating leads, formed of the same materia...

High Speed Steel
For centuries the secret art of making tool steel was handed ...

Robert Mushet
Robert (Forester) Mushet (1811-1891), born in the Forest of D...

Gas Consumption For Carburizing
Although the advantages offered by the gas-fired furnace for ...

Annealing To Relieve Internal Stresses
Work quenched from a high temperature and not afterward tempe...

The Quenching Tank
The quenching tank is an important feature of apparatus in c...

The Pyrometer And Its Use
In the heat treatment of steel, it has become absolutely nece...

Liberty Motor Connecting Rods
The requirements for materials for the Liberty motor connecti...

Application Of Liberty Engine Materials To The Automotive Industry
The success of the Liberty engine program was an engineer...

Heating Of Manganese Steel
Another form of heat-treating furnace is that which is used ...

Heat-treating Equipment And Methods For Mass Production
The heat-treating department of the Brown-Lipe-Chapin Company...

Correction By Zero Adjustment
Many pyrometers are supplied with a zero adjuster, by means ...

Effect Of A Small Amount Of Copper In Medium-carbon Steel
This shows the result of tests by C. R. Hayward and A. B. Joh...

Protective Screens For Furnaces
Workmen needlessly exposed to the flames, heat and glare from...

Hardening High-speed Steels
We will now take up the matter of hardening high-speed steels...

High-chromium Or Rust-proof Steel
High-chromium, or what is called stainless steel containing f...

Non-shrinking Oil-hardening Steels
Certain steels have a very low rate of expansion and contract...

Heat Treatment Of Lathe Planer And Similar Tools
FIRE.--For these tools a good fire is one made of hard foundr...

William Kelly's Air-boiling Process
An account of Bessemer's address to the British Association w...



Heat Treatment Of Steel






Category: HEAT TREATMENT OF STEEL

Heat treatment consists in heating and cooling metal at definite
rates in order to change its physical condition. Many objects may
be attained by correct heat treatment, but nothing much can be
expected unless the man who directs the operations knows what is
the essential difference in a piece of steel at room temperature
and at a red heat, other than the obvious fact that it is hot. The
science of metallography has been developed in the past 25 years,
and aided by precise methods of measuring temperature, has done
much to systematize the information which we possess on metallic
alloys, and steel in particular.





Next: Critical Points

Previous: Blending The Compound



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