Both steel iron and cast iron have the structures of eutectoid, hypoeutectoid and hypereutectoid.
钢和铸铁都有共析、亚共析和过共析这三种组织。
2
It was found by experiments thatboron increased the growth rate of pearlite, both in hypoeutectoid and eutectoid steels.
硼有加速珠光体成长率的作用，无论在亚共析或共析钢中皆有同样的现象产生。
3
The results show that, in hypoeutectoid steels, deformation at medium temperature may fine the structure and improve the distribution of ferrite and pearlite greatly;