钢件淬火组织形态对其强度、韧性和塑性有着明显的影响。钢制工件常见的失效形式-塑性变形、断裂和磨损与其强度、韧性、塑性有密切的关系。因此,人们可以运用改变钢的化学组成和热处理工艺等方法来控制淬火组织形态和改善强度、韧性、塑性,从而可望提高钢件的失效抗力和延长使用寿命。但是,人们对钢组织形态的研究往往是在过热状态下进行 Steel quenching organizational morphology of its strength, toughness and plastic have a significant impact. Common failure forms of steel parts - plastic deformation, fracture and wear with its strength, toughness, plasticity are closely related. Therefore, people can use the chemical composition of the steel and heat treatment process to control the morphology of quenched and improve the strength, toughness, plasticity, which is expected to improve the failure resistance of steel and prolong the service life. However, people’s study of the morphology of steel is often carried out in an overheated state