Journal of Materials Science

, Volume 46, Issue 14, pp 4971–4979 | Cite as

Dynamic constitutive behavior of Hastelloy X under thermo-mechanical loads

  • Sandeep Abotula
  • Arun Shukla
  • Ravi Chona


An experimental investigation has been conducted to study the dynamic constitutive behavior of Hastelloy X (AMS 5754) at room and elevated temperatures under varying rates of loading. A split Hopkinson pressure bar (SHPB) apparatus was used in conjunction with an induction coil heating system for applying dynamic loads at elevated temperatures. Experiments were carried out at different temperatures ranging from room temperature (25 °C) to 1,100 °C at an average strain rate of 5000/s. Room temperature experiments were carried out at varying strain rates from 1000 to 4000/s. The results show that as the strain rate increases from quasi-static to 4000/s, the yield strength increases by approximately 50%. Also, under dynamic loading, the yield stress decreases with temperature up to 700 °C, after which it shows a peak at 900 °C before beginning to decrease again as the temperature is further increased. The Johnson–Cook model was used to predict the dynamic plastic response under varying rates of loading and at different temperatures.


Flow Stress Molybdenum Disulfide Average Relative Error Reference Strain Rate Vary Strain Rate 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.



The first two authors kindly acknowledge the financial support provided by the Air Force Office of Scientific Research under Grant No. FA9550-09-1-0639. Also the authors would like to thank professor John Lambros for his valuable discussions.


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Copyright information

© Springer Science+Business Media, LLC 2011

Authors and Affiliations

  1. 1.Dynamic Photo Mechanics Laboratory, Department of Mechanical, Industrial & Systems EngineeringUniversity of Rhode IslandKingstonUSA
  2. 2.Structural Sciences Center, Air Vehicles DirectorateUS Air Force Research LaboratoryWright Patterson AFBUSA

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