Ferro duttile temperato

Ferro duttile temperato

Jyoti Prakash Dhal / Ranjit Kumar Panda / S. C. Mishra

82,66 €
IVA incluido
Disponible
Editorial:
KS OmniScriptum Publishing
Año de edición:
2025
Materia
Tecnología: cuestiones generales
ISBN:
9786209266140
82,66 €
IVA incluido
Disponible

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Dalla sua scoperta nel 1948, l’uso della ghisa sferoidale è in costante aumento, grazie alla combinazione delle sue eccellenti proprietà meccaniche. Sono state condotte numerose ricerche per sviluppare proprietà ancora migliori. La ghisa sferoidale austemperizzata è l’ultima novità nel campo della ghisa sferoidale o ghisa S.G. Si ottiene mediante un trattamento termico isotermico della ghisa sferoidale. La ghisa sferoidale austenitica di nuova concezione sta ormai sostituendo l’acciaio in molti settori, acquisendo così un’importanza crescente sotto diversi aspetti. Nel presente lavoro vengono studiati l’effetto del rame e le variabili di processo (temperatura e durata dell’austenitizzazione) sulle proprietà (durezza, resistenza alla trazione e allungamento) e sulla microstruttura della ghisa sferoidale. Con l’aumento del tempo di tempra isotermica, la durezza, la resistenza alla trazione e l’allungamento aumentano, ma con l’aumento della temperatura di tempra isotermica, la durezza e la resistenza alla trazione diminuiscono e l’allungamento aumenta. La ghisa sferoidale austemperizzata con rame presenta una resistenza e una durezza maggiori e un allungamento minore rispetto alla ghisa sferoidale austemperizzata senza rame. Nella microstruttura, la ferrite aumenta.

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