随着钢的强韧化理论的发展,低碳马氏体钢已在很多领域获得应用。但是以往,弹簧及其他弹性元件绝大多数采用含碳量中等(0.50～0.70％C)的各种弹簧钢制造。近年来,沈阳市弹簧厂及其所属研究所的试验研究和装车道路实验已证明,用低碳马氏体钢制造的汽车板簧具有很多优越性,并可获得可观的经济效益。一、钢种的选择弹簧材料需具有较大的弹性比功。因此,材料的弹性极限(屈服极限)是极重要 With the development of toughening theory of steel, low carbon martensitic steels have been applied in many fields. In the past, however, the vast majority of springs and other elastic elements were made of various spring steels with medium carbon content (0.50-0.70% C). In recent years, Shenyang Spring Factory and its affiliated institutes of experimental research and loading road experiments have proved that automotive leaf springs made of low carbon martensitic steel have many advantages, and can obtain considerable economic benefits. First, the choice of steel Spring materials need to have greater flexibility than work. Therefore, the material’s elastic limit (yield point) is extremely important