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CATEGORYHeat treatmentspheroidizing
This time, we will introduce spheroidized annealing. Since it has the name "spheroidization", it makes something spherical. Do you know what it is?
Spheroidizing makes cementite spherical.
To explain in more detail, in spheroidizing, the cementite of the tissue called "pearlite" is spheroidized.
The black part in the figure below is a sphere.
pearlite Cementite is spherical
As a method of heat treatment, hold it directly under A1 for a long time, or cross the point A1. There is a method of repeating heating and cooling.
This heat treatment is used on high carbon steel to improve tenacity and workability.
