Machinability of Austempered Ductile Iron (ADI) Produced by Integrated Green Technology of Continuous Casting-Heat Treatment Processes

Journal Article · Mon Jan 17 00:00:00 EST 2011 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.3552404· OSTI ID:21511455

Meena, A; El Mansori, M; Ghidossi, P ^[1]

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1. Arts et Metiers ParisTech, LMPF-EA 4106, Rue Saint Dominique, BP 508, 51006, Chalons-en-Champagne, Cedex (France)

This study presents the novel processing technique known as continuous casting-heat treatment processes to produce Austempered Ductile Iron (ADI) which is a new class of ductile iron. ADI is characterized by improved mechanical properties but has low machinability as compared to other cast irons and steel of similar strength. The novel technique is developed by the integration of casting (in die casting) and heat treatment processes in foundry to save cost energy and time. Specimens just after casting were austenitized at 930 deg. C for 90 min and then austempered in fluidized bed at 380 deg. C for 90 and 120 min. Hence, the effect of austempering time on the morphology of retained austenite and mechanical properties of the material were examined and compared with conventionally produced ADI. Drilling tests were then carried out to evaluate the machinability of ADI in terms of cutting forces, chip micro-hardness, chip morphology and surface roughness. The mechanical properties of ADI austempered for 120 min have found to be better as compare to the ADI austempered for 90 min.

• OSTI ID: 21511455
• Journal Information: AIP Conference Proceedings, Vol. 1315, Issue 1; Conference: AMPT2010: International conference on advances in materials and processing technologies, Paris (France), 24-27 Oct 2010; Other Information: DOI: 10.1063/1.3552404; (c) 2010 American Institute of Physics; ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
AUSTENITE
CASTING
COMPARATIVE EVALUATIONS
CUTTING
DIES
DRILLING
DUCTILITY
HARDNESS
HEAT TREATMENTS
IRON
PROCESSING
ROUGHNESS
STEELS
STRAIN HARDENING
SURFACES
ALLOYS
CARBON ADDITIONS
ELEMENTS
EVALUATION
FABRICATION
HARDENING
IRON ALLOYS
IRON BASE ALLOYS
MACHINING
MECHANICAL PROPERTIES
METALS
SURFACE PROPERTIES
TENSILE PROPERTIES
TRANSITION ELEMENT ALLOYS
TRANSITION ELEMENTS