Abstract
Austempered ductile irons (ADI) are a high strength, high toughness ductile cast irons with vastly improved mechanical properties. Various grades of austempered ductile irons can be produced depending primarily on the heat treatment conditions. The mechanical properties of austempered ductile irons are described and compared to the properties of other competing materials. The fundamentals of the physical metallurgy of the austempering reaction in ductile irons will also be reviewed to highlight important aspects of ADI process control and quality assurance. Heat treatment control during austempering is much more critical than for other ferrous heat treating operations. In recent years austempered ductile irons have successfully been used to replace steel components and to upgrade conventional ductile iron components for a wide variety of applications. Specific applications are highlighted which illustrate the particular advantages of austempered ductile irons.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
