Processing, Mechanical Properties, and Ballistic Impact Effects of Austempered Ductile Iron PDF Download

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Processing, Mechanical Properties, and Ballistic Impact Effects of Austempered Ductile Iron

Processing, Mechanical Properties, and Ballistic Impact Effects of Austempered Ductile Iron PDF Author: John Chinella
Publisher:
ISBN:
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Languages : en
Pages : 58

Book Description
This study describes the resistance to penetration and the damage to austempered ductile iron (ADI) from ballistic impacL The resistance to penetration is determined with an average velocity with a 50% probability for complete penetration, the V-50 ballistic limit. The responses of the ADI material to impact are shown by observations of penetration modes, microstructural changes, and fracture topographies. Mechanical properties and ballistic limits are shown for two variations of the austemper process. ADI targets reveal a capability for multiple impacts without structural failures. Penetration modes include ductile hole growth, radial fracture, petaling, and scabbing. V-50 velocities of ADI with lower values of hardness and strength are equal or greater than the V-50 velocities of ADI with higher values of hardness and strength. Graphite spheroids of this ductile cast iron appear to affect plastic deformation and penetration modes by localizing stresses, microstructural changes, and fracture.
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