Ni-Resist Type D5S – An Improved Material for Turbocharger Housings 800016

Automotive turbocharger housings are complex castings of predominantly thin section requiring a demanding combination of properties. Ni-resist Type D5S, a highly castable austenitic ductile iron containing 36%Ni, 5.3%Si, 2%Cr, provides the required combination of properties and is finding increased application in turbo-charger housing. A series of investigations has been conducted into the influence of melting/casting and compositional variables on microstructure, mechanical and physical properties, and machinability of this iron. A preferred melting/casting practice is recommended, and the effects of various addition elements are defined. Mechanical, physical, machinability and oxidation properties are presented.


Subscribers can view annotate, and download all of SAE's content. Learn More »


Members save up to 40% off list price.
Login to see discount.
Special Offer: With TechSelect, you decide what SAE Technical Papers you need, when you need them, and how much you want to pay.