Inicio > Tecnología, ingeniería, agricultura > Tecnología: cuestiones generales > Ingeniería: general > Impatto dell’invecchiamento a lungo termine a 475°C sulla microstruttura della lega CUSTOM 465
Impatto dell’invecchiamento a lungo termine a 475°C sulla microstruttura della lega CUSTOM 465

Impatto dell’invecchiamento a lungo termine a 475°C sulla microstruttura della lega CUSTOM 465

Hafsa Iqbal / Muhammad Ahmad Iqbal / Vlastimil Vodárek

61,57 €
IVA incluido
Disponible
Editorial:
KS OmniScriptum Publishing
Año de edición:
2025
Materia
Ingeniería: general
ISBN:
9786208743062
61,57 €
IVA incluido
Disponible

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Questo libro esplora gli effetti dell’invecchiamento a lungo termine a 475°C sulla microstruttura e sulle proprietà della lega Custom 465®. Vengono trattati gli aspetti teorici degli acciai inossidabili induriti per precipitazione, compresa la formazione di austenite inversa e il suo impatto sulle proprietà meccaniche, nonché il processo di infragilimento a 475°C negli acciai Fe-Cr. I risultati sperimentali ottenuti con TEM e XRD mostrano che un adeguato trattamento termico porta alla precipitazione di particelle di η-Ni3Ti e di una piccola quantità di austenite invertita nella martensite temperata dei listelli. Un invecchiamento prolungato a 475°C per 1000 e 2000 ore provoca un’ulteriore precipitazione e un aumento dell’austenite revertita, che contribuisce a mitigare l’effetto di indurimento della fase ricca di α´-Cr. Lo studio dimostra che, mentre la resistenza diminuisce con l’invecchiamento prolungato, l’allungamento e l’energia d’impatto rimangono sostanzialmente inalterati.

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