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Observations of secondary carbide precipitation and its relation to high-temperature flow and fracture in HT-9 stainless steel

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Abstract

The martensitic stainless steel HT-9 has been of interest to the advanced nuclear energy community for many years, primarily because of its low swelling properties in the fast neutron environment. We at Argonne have studied this ma-terial in connection with its role as fuel cladding in the integral fast reactor (IFR).[1,2] Very similar steels constitute the metal matrix in dispersion-strengthened alloys proposed for use in Japanese advanced reactor designs, and HT-9 itself is still considered as an option for use in fusion re-actor first wall structures. All of these applications require an understanding of the high-temperature mechanical be-havior of HT-9 over a wide range of loading conditions, including the effects of temperature, stress, and rate. In this

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Authors and Affiliations

  1. Engineered Materials Center, Argonne National Laboratory, 60439, Argonne, IL

    R. J. Dimelfi (Staff Materials Scientist, Director)

  2. Components Products Division, Motorola Corporation, 60196, Schaumburg, IL

    Yuheng Li (Lead Engineer)

Authors
  1. R. J. Dimelfi
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  2. Yuheng Li
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Formerly Postdoctoral Fellow, Experimental Facilities Division, Argonne National Laboratory.

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Dimelfi, R.J., Li, Y. Observations of secondary carbide precipitation and its relation to high-temperature flow and fracture in HT-9 stainless steel. Metall Mater Trans A 27, 467–469 (1996). https://doi.org/10.1007/BF02648424

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  • DOI: https://doi.org/10.1007/BF02648424

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