Changes in Carburized Microstructures and Creep Properties of Nb-Added SCH13A Heat-Resistant Cast Steel due to Different Pouring Temperatures
نویسندگان
چکیده
The relationship between pouring temperature and carburized microstructure of 1％Nb-added SCH13A heat-resistant cast steel manufactured by the self-hardening mold casting process at temperatures 1753 K, 1823 K 1883 was investigated. creep properties these materials subjected to repeated carburizing quenching treatment were also examined. As a result, with increasing temperature, depth decreases carbon concentration distribution in layer increases. A relative comparison revealed that volume primary carbides number voids micro-cracks generated due vacuum affected rupture time. Creep time specimens shorter than as-cast specimens. Additionally, exhibits longest among samples poured three different temperatures.
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ژورنال
عنوان ژورنال: Nippon Kinzoku Gakkaishi
سال: 2023
ISSN: ['1880-6880', '0021-4876']
DOI: https://doi.org/10.2320/jinstmet.j2023011