Monday  |  Salon 13  |  04:30 PM–04:50 PM

#16032, Dynamic Characterization of a 316 Stainless Steel at Elevated Temperatures

316 stainless steel is a promising material for the nuclear power industry due to its corrosion resistance, machinability, and mechanical properties at elevated temperatures. Nuclear facilities such as fission and fusion reactors are routinely exposed to elevated temperatures as a result of startups and shutdowns. They are also required to maintain sufficient strength against accidental drop, impact, and crashes at these elevated temperatures. Therefore, it is important to study the thermo-mechanical behavior of 316 stainless steel to understand the sensitivities of strength and ductility to strain rate and temperature. A comprehensive study of the mechanical response of a 316 stainless steel under dynamic loading is presented. Using the split-Hopkinson bar technique coupled with different environmental chambers, tension and compression experiments were performed at strain rates of 500/s, 1500/s, and 3000/s and at temperatures of 300°C and 600°C.

Keywords: Stainless steel, Mechanical characterization, Strain rate sensitivity, Temperature sensitivity

Sandia National Laboratories is a multimission laboratory managed and operated by National Technology and Engineering Solutions of Sandia, LLC, a wholly owned subsidiary of Honeywell International, Inc., for the U.S. Department of Energy’s National Nuclear Security Administration under contract DE-NA0003525. The views expressed in the article do not necessarily represent the views of the U.S. Department of Energy or the United States Government.

Angela Ku   Sandia National Laboratories
Bo Song   Sandia National Laboratories