Studies on the Kinetics of very Rapid Cooling in Different Quenching Liquids- Application to Some Alloys of Iron, Nickel and Carbon

0NE can set the problem of quenching metals and alloys
in the following manner.
Let us consider a structural transformation arising in the metal or alloy within a certain interval of temperature 01, 02.
Let its suppose that this transformation, without induction period, has an initial speed characterized by finite values at all the temperatures within the interval 01, 02, and by negligible value, at the boundaries 01
and 02 of this interval.
This speed of transformation can be measured for all the temperatures within the interval 01, O2 by recording, against time, the variations of a physical property of
the sample in direct relation with its structure.With the well-known isothermal thermodilatometer of Prof. Cheve-narci, this physical property is the length of a cylin-drical wire of some millimetres in diameter and 50
millimetres in length.