4.7 Article

Formulating the strength factor α for improved predictability of radiation hardening

期刊

JOURNAL OF NUCLEAR MATERIALS
卷 465, 期 -, 页码 724-730

出版社

ELSEVIER SCIENCE BV
DOI: 10.1016/j.jnucmat.2015.07.009

关键词

Defects; TEM; Stainless steels; Strengthening

资金

  1. U.S. Department of Energy, Office of Nuclear Energy, Light Water Reactor Sustainability Program
  2. University of Tennessee Battelle, LLC [DE-AC05-00OR22725]
  3. Oak Ridge National Laboratory's (ORNL) Center for Nanophase Materials Sciences
  4. Scientific User Facilities Division, Office of Basic Energy Sciences, US Department of Energy

向作者/读者索取更多资源

Analytical equations were developed to calculate the strength factors of precipitates, Frank loops, and cavities in austenitic alloys, which strongly depend on barrier type, size, geometry and density, as well as temperature. Calculated strength factors were successfully used to estimate radiation hardening using the broadly employed dispersed barrier-hardening model, leading to good agreement with experimentally measured hardening in neutron-irradiated type 304 and 316 stainless steel variants. The formulated strength factor provides a route for more reliable hardening predictions and can be easily incorporated into component simulations and design. (C) 2015 Elsevier B.V. All rights reserved.

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