多少年来,人们都是通过调整钢的化学成分和运用淬火-回火方法来进行强化的。后来,人们发现,塑性加工也有强化作用,于是,从合金化和塑性变形两个方面来考虑对钢进行强化就是很自然的了。近来,人们已从凝固到热处理,从合金元素的调整到塑性变形综合起来进行考虑,以改善钢的性能。 For years, people have fortified themselves by adjusting the chemical composition of the steel and applying a quench-temper method. Later, it was found that plastic processing also has a strengthening effect, so from the alloying and plastic deformation of two aspects to consider strengthening the steel is very natural. Recently, it has been considered from the alloying to the heat treatment, from the alloying element adjustment to the plastic deformation, to improve the properties of the steel.