Jominy end quench test studies, the resulting radial hardness tra-
verses are also almost flat [14]. From the above, we can confirm that heat transfer is along the cylinder axis, with little heat transfer occurring along the sides. Therefore, the cooling process of the
w ¼ k n
ð s -
T w Þ
ð2Þ
Jominy end quench tests in this paper was supposed to be one- dimensional heat conduction process.
Then based on the Fourier’s heat transfer equation, the temper- ature of the quenched surface and the heat transfer coefficient are
respectively marked as T n and hn , which can be calculated as fol-
s w
lows [22]: