Describing the phase-change reaction of an alloy in which, on cooling, a single solid phase transforms into two other solid phases.
An alloy of a composition that undergoes the eutectoid transformation.
Eutectoid Sentence Examples
When of eutectoid composition, it is called " hardenite."
13) sufficient in quantity to represent their excess of carbon over the eutectoid ratio; they are called " hyper-eutectoid," and are represented by region 8 of fig.
12) sufficient in quantity to represent their excess of iron over this eutectoid ratio; is called " hypo-eutectoid "; and is represented by region 6 of fig.
A " eutectoid " is to such a transformation in solid metal what a eutectic is to freezing proper.
The fact that this decrease of strength begins shortly after the carboncontent rises above the eutectoid or pearlite ratio of o 90% is natural, because the brittleness of the cementite which, in hypereutectoid steels, forms a more or less continuous skeleton (Alloys, Pl., fig.