AUSTEMPERED DUCTILE IRON PRODUCTION TECHNOLOGY FROM BASE MATERIAL PRODUCED BY FERRO-CASTING INDUSTRY IN INDONESIA

06 Aug 2019

Austempered Ductile Iron Production Technology From Base Material Produced By Ferro-Casting Industry In Indonesia

Rianti Dewi Wulansari Sulamet Ariobimo, 2003
University of Queensland

Abstract

The quality of Austempered Ductile Iron, ADI, made from lndonesianproduced Ferro-Casting Ductile Iron, FCDI, as base material is discussed. FCDI that is made for routine consumption in Indonesia; not especially as ADl base material, is assessed for chemical composition and mechanical properties. It is then austempered at austenisation temperature 950°C with 1 hour holding. Three austempering temperatures, 300°C, 350°C, and 400°C, were investigated with 1 hour holding time using fluidized bed furnace. Metallographic examinations, tension tests and Brinen hardness number tests, were then carried out for the resulting ADI. Based on ASTM A897M - 90, the products of austempering temperature 300°C and 350°C can be classified as ADl 850/550/10. This shows that the Indonesian-produced FCDI base material can be used for ADI production.

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