【摘要】 本文综述了我国非调质钢的研究与应用情况，内容包括显微组织参数、化学成分和热加工参数等对性能的影响及非调质钢的断裂行为、疲劳性能和可切削性。文中比较了非调质钢与调质钢在上述性能方面的差异。更多还原

【Abstract】 This paper summaries the development and application of ferrite-pearlite microalloyed engineering steels in China,It is worthy to emphasize that com-positions and processes are the most critical factors affecting structure variables,and thereby the properties of the steels。 Mechanical properties of the steels along with fracture behaviour,fatigue property and machinability are presented in comparison with those of quenched and tempered steels.更多还原