The particular piece of an alloy will typically have an awesome impact on the consequences of heat treating. If the ratio of every constituent is simply right, the alloy will structure a solitary, constant microstructure after cooling. Such a mixture is said to be eutectoid. Then again, if the rate of the solutes shifts from the eutectoid mixture, two or more diverse microstructures will form at the same time. A hypereutectoid arrangement contains less of the solute than the eutectoid mixture, while a hypereutectoid arrangement contains more: