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

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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 microstructural orientations. The heating, isothermal, and cooling parts of the dilatometry curves were characterized. The thermal expansion of the ferritic alloys is less important than the thermal expansion 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 to depend more on the matrix nature than on the microstructural orientation.

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Authors and Affiliations

  1. Jean Lamour Institute, Nancy, France

    P. Berthod, L. Aranda & Y. Hamini

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  1. P. Berthod
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  2. L. Aranda
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  3. Y. Hamini
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Correspondence to P. Berthod.

Additional information

Published in Fizyko-Khimichna Mekhanika Materialiv, Vol. 47, No. 3, pp. 46–52, May–June, 2011.

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Berthod, P., Aranda, L. & Hamini, Y. Thermal expansion of chromium-rich iron-based or iron /nickel-based alloys reinforced by tantalum carbides. Mater Sci 47, 319–326 (2011). https://doi.org/10.1007/s11003-011-9399-0

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  • DOI: https://doi.org/10.1007/s11003-011-9399-0

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