Thermal expansion of chromium-rich iron-based or iron/nickel-based alloys reinforced by tantalum carbides

Six alloys reinforced by TaC carbides based on iron (ferritic) or both iron and nickel (austenitic) were studied in thermal expansion between 100 and 1200°C for two microstructure orientations. The heating, isothermal and cooling parts of the dilatometry curves were characterized. The thermal expans...

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Bibliographic Details
Date:2011
Main Authors: Berthod, P., Aranda, L., Hamini, Y.
Format: Article
Language:English
Published: Фізико-механічний інститут ім. Г.В. Карпенка НАН України 2011
Series:Фізико-хімічна механіка матеріалів
Online Access:http://dspace.nbuv.gov.ua/handle/123456789/139162
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Journal Title:Digital Library of Periodicals of National Academy of Sciences of Ukraine
Cite this:Thermal expansion of chromium-rich iron-based or iron/nickel-based alloys reinforced by tantalum carbides / P. Berthod, L. Aranda, Y. Hamini // Фізико-хімічна механіка матеріалів.— 2011. — Т. 47, № 3. — С. 46-52. — Бібліогр.: 7 назв. — англ.

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Digital Library of Periodicals of National Academy of Sciences of Ukraine
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Summary:Six alloys reinforced by TaC carbides based on iron (ferritic) or both iron and nickel (austenitic) were studied in thermal expansion between 100 and 1200°C for two microstructure orientations. The heating, isothermal and cooling parts of the dilatometry curves were characterized. The thermal expansion of the ferritic alloys is less important than that of the austenitic alloys. A compressive deformation of the matrix subjected to stresses applied by the carbides network was observed. The importance of this phenomenon seems depending more on the matrix nature than on the microstructure orientation.