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- W2053456321 abstract "The effects of second phase particles, e.g. M23C6, MC and M(C, N) carbides on the grain growth phenomenon of FeNiCr alloys have been determined. Various theoretical models on grain coarsening have been compared. The grain size at all stages of grain coarsening was dependent on the undissolved carbide particle size (r), the volume fraction (f), and the nature of the carbides. The nature of M23C6 carbides varied, since Fe, Ni and Mo entered the M23C6 unit cell; and complex carbides such as (Cr15Fe4Ni2Mo2)C6 were formed. Gladman's equation was verified for predicting the observed grain size values to a significant degree, and other models were less successful. Nous avons étudié l'influence de particules d'une seconde phase telle que les carbures M23C6, MC et M(C,N) sur la croissance des grains dans des alliages FeNiCr. Nous avons comparé divers modèles théoriques du grossissement des grains. A tous les stades, le grossissement des grains dépendait de la taille (r) des particules de carbures non dissoutes, de la fraction volumique (f) et de la nature des carbures. La nature des carbures M23C6 variait, puisque Fe, Ni et Mo pénétraient dans la maille élémentaire M23C6 et on observait la formation de carbures complexes, tels que (Cr15Fe2Ni2Mo2)C6. Nous avons trouvé que l'équation de Gladman permet de prévoir de manière significative les valeurs expérimentales de la taille des grains, alors que d'autres modèles ont moins de succès à cet égard. Der Einfluβ von Teilchen einer zweiten Phase, wie M23C6, MC und M (C, N)-Karbide, auf das Kornwachstum wurde an FeNiCrLegierungen untersucht. Verschiedene theoretische Modelle der Kornvergröberung werden miteinander verglichen. Bei sämtlichen Stufen der Kornvergröberung hing die Korngröβe von der Gröβe r der nicht aufgelösten Karbidteilchen, dem Volumanteil f und der Art des Karbids ab. Die Art der M23C6-Karbide war unterschiedlich, da Fe, Ni und Mo in die M23C6-Einheitszelle eingebaut wurden. Dadurch entstanden komplexe Karbide wie etwa (Cr15Fe4Ni2Mo2)C6. Die Gleichung von Gladman beschreibt die beobachteten Korngröβen bemerkenswert gut, wohingegen andere Modelle weniger gut sind." @default.
- W2053456321 created "2016-06-24" @default.
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- W2053456321 date "1982-07-01" @default.
- W2053456321 modified "2023-09-23" @default.
- W2053456321 title "Grain coarsening in FeNiCr alloys and the influence of second phase particles" @default.
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- W2053456321 doi "https://doi.org/10.1016/0001-6160(82)90149-3" @default.
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