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S13 Integridade Estrutural |
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Title:
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MECHANICAL PROPERTIES AND FRACTURE TOUGHNESS OF AUSTEMPERED DUCTILE IRONS(ADI)
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Summary :
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MECHANICAL PROPERTIES AND FRACTURE TOUGHNESS OF AUSTEMPERED DUCTILE IRONS(ADI)
ABSTRACT. THE AUSTEMPERED DUCTILE CAST IRON (ADI) IS A MATERIAL THAT OFFERS IMPROVED PRODUCT PERFORMANCE WHILE REDUCING COSTS AND, IN MANY APPLICATIONS, SURPASSES STEEL FORGINGS, CARBURIZED STEEL, MALLEABLE, GRAY IRON AND ALUMINIUM COMPONENTS. BESIDES, THE ADI DISPLAYS REMARKABLE MECHANICAL PROPERTIES SUCH AS HIGH TENSILE STRENGTH AND WEAR RESISTANCE, BEYOND EXCELLENT FRACTURE TOUGHNESS AND FATIGUE STRENGTH. IN THE PRESENT WORK THE MECHANICAL PROPERTIES AND FRACTURE TOUGHNESS WERE INVESTIGATED ON UNALLOYED AND ALLOYED MOLIBDENIUM ADI. THE MELT WAS INOCULATED WITH 0.5, 0.7 AND 0.9% OF FESI75. THE TESTS WERE REALIZED AT ROOM TEMPERATURE IN A MTS 810 HYDRAULIC MACHINE. THE MECHANICAL PROPERTIES AND FRACTURE TOUGHNESS OF THE UNALLOYED ADI WAS COMPARABLE TO THAT OF THE ALLOYED MOLIBDENIUM ADI.
KEY-WORDS: MECHANICAL PROPERTIES, FRACTURE TOUGHNESS, AUSTEMPERED DUCTILE IRON (ADI), INOCULANT, ALLOYING ELEMENTS.
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Author :
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Albuquerque, Albéria Cavalcanti
de Lacerda, Galvani Alves
dos Santos, Marco Antonio
Froehlich, André R.
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Paper View :
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COBEM99
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