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Graphitization
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Engr. Shafiul Bari
Shafiul Bari is a seasoned Marine Engineer with extensive experience in ship design, maintenance, and marine propulsion systems. With a deep technical knowledge of ship engineering and a passion for advancing maritime technology, Shafiul shares practical insights and expert advice to help marine professionals and enthusiasts better understand the complexities of ship systems. Through his website, he aims to bridge the gap between technical theory and real-world application, fostering a community of informed and skilled maritime engineers.
When not immersed in ship engines and technical manuals, Shafiul enjoys exploring the latest innovations in marine technology and mentoring aspiring marine engineers.
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Graphitization is a microstructural change that occurs in carbon or low-alloy steels exposed to temperatures of about 425–550°C for several thousand hours.
It causes the metal to weaken and be susceptible to cracking failures. The steel tends to break down to form iron and carbon (graphite); carbon will migrate to the material’s grain boundaries forming graphite nodules, which causes the metal to become brittle, losing strength, toughness, creep resistance, and ductility.
Creep resistance is solid material’s ability to resist “creep”
Creep: tendency of a material to slowly deform over a long period of exposure to high levels of stress.
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