汽车用等温淬火的球墨铸铁铸件

[中文适用范围]： 本SAE标准涵盖了汽车及相关行业中使用的奥氏体球墨铸铁（ADI）铸件的机械和物理性能要求。具体包括：硬度、抗拉强度、屈服强度、伸长率、弹性模量、冲击能量和微观结构。本文件以SI单位为主，英寸-磅单位为派生。附录A提供了关于微观结构、化学和热处理要求的一般信息和相关资源，以满足特定使用条件和应用中ADI所需的机械性能。 [外文原描述]： This SAE Standard covers the mechanical and physical property requirements for Austempered Ductile Iron (ADI) castings used in automotive and allied industries. Specifically covered are:aHardnessbTensile StrengthcYield StrengthdElongationeModulus of ElasticityfImpact EnergygMicrostructureIn this document SI units are primary and in-lb units are derived. Appendix A provides general information and related resources on the microstructural, chemical and heat treatment requirements to meet the mechanical properties needed for ADI in particular service conditions and applications.Cross Reference: ASTMA247,ASTMA536,ASTME10,ASTME111,ASTME23