Mechanical Properties and Radiation Resistance of Nanoprecipitates-Strengthened Advanced Ferritic Alloys

Technical Report · Sat Dec 30 04:00:00 EST 2017

DOI:https://doi.org/10.2172/1427634· OSTI ID:1427634

Tan, Lizhen ^[1]; Yang, Ying ^[1]; Chen, Tianyi ^[1]; Sridharam, Kumar ^[2]; He, Li ^[2]

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1. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
2. Univ. of Wisconsin, Madison, WI (United States)

Five ferritic alloys and a ferritic-martensitic steel, designed by computational thermodynamics using recently developed database, were assessed in this work. A previous Fe-Cr-Zr ferritic alloy, named as Z6, was further investigated because of its amorphization behavior after a peak damage of 50 displacements per atom (dpa) at 400°C. Alloying elements of Zr, Nb, and Mo were varied to form four new ferritic alloys, named as Z1N33A, BL-Nb, BL-NbZr, and BL-Mo, which have reduced Zr-bearing Laves phase and complemented with B2-NiAl phase. The ferritic-martensitic steel, named as TTZ2M, favored MX-type (M=metal, X=C/N) precipitates with controlled M₂₃C₆ and Laves phases.

• Research Organization: Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
• Sponsoring Organization: USDOE Office of Nuclear Energy (NE)
• DOE Contract Number: AC05-00OR22725
• OSTI ID: 1427634
• Report Number(s): ORNL/TM-2017/740; M2CA-15-TN-OR0402023
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE