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。
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。
The results show that, in hypoeutectoid steels, deformation at medium temperature may fine the structure and improve the distribution of ferrite and pearlite greatly;
结果表明，对于亚共析钢，在中温区变形、保温后可使先共析铁素体和珠光体组织大大细化，显著改善钢中铁素体和珠光体的分布状况；
The hardening gradient and the character of abrasion in hardening layer of hypoeutectoid steel with two kinds of matrixes that was treated by laser beam have been studied.
研究了两种基体的亚共析钢经激光处理后，其硬化层的硬度梯度及其磨损特性。
The hardening gradient and the character of abrasion in hardening layer of hypoeutectoid steel with two kinds of matrixes that was treated by laser beam have been studied.
研究了两种基体的亚共析钢经激光处理后，其硬化层的硬度梯度及其磨损特性。
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