Article Metrics


Online attention

Mechanical characterisation of V-4Cr-4Ti alloy: tensile tests under high energy synchrotron diffraction

DOI: 10.1016/j.jnucmat.2022.153911 DOI Help

Authors: Tay Sparks (University of Birmingham) , Duc Nguyen-Manh (UK Atomic Energy Authority) , Pengfei Zheng (Southwestern Institute of Physics (China)) , Jan S. Wróbel (Warsaw University of Technology) , Damian Sobieraj (Warsaw University of Technology) , Michael Gorley (UK Atomic Energy Authority) , Thomas Connolley (Diamond Light Source) , Christina Reinhard (Diamond Light Source) , Yiqiang Wang (United Kingdom Atomic Energy Authority) , Biao Cai (University of Birmingham)
Co-authored by industrial partner: No

Type: Journal Paper
Journal: Journal Of Nuclear Materials , VOL 29

State: Published (Approved)
Published: July 2022
Diamond Proposal Number(s): 19251

Abstract: Vanadium base alloys represent potentially promising candidate structural materials for use in nuclear fusion reactors due to vanadium's low activity, high thermal strength, and good swelling resistance. In this work, the mechanical properties of the current frontrunner vanadium base alloy, V-4Cr-4Ti, have been interrogated using in-situ high energy X-ray diffraction (XRD) tensile testing at varying temperatures. The single crystal elastic constants of the samples were determined from the in-situ XRD data and used to evaluate results from density functional theory calculations. Polycrystalline elastic properties and Zener anisotropy were calculated from the single crystal elastic constants produced, revealing the effect of elevated temperature on the alloy's elastic properties. These results characterise important thermomechanical properties, valuable in mechanical modelling, that will allow further and improved analysis of the structural suitability of V-4Cr-4Ti ahead of alloy adoption in the mainstream.

Journal Keywords: Alloys

Subject Areas: Materials, Engineering

Instruments: I12-JEEP: Joint Engineering, Environmental and Processing

Added On: 12/07/2022 15:33

Discipline Tags:

Materials Engineering & Processes Materials Science Engineering & Technology Metallurgy

Technical Tags: