In situ analysis of cast irons mechanical behaviour using synchrotron x-ray tomography and 3DXRD

Forskningsoutput: Kapitel i bok/rapport/Conference proceedingKonferenspaper i proceeding

Abstract

When subjecting cast irons to mechanical loading the deformation and damage mechanisms occur on a microstructural level and are dependent on the inherent microstructure. A deeper understanding of the relation between the different microstructural constituents and the macroscopic mechanical behaviour would be beneficial in material development efforts and for the ability to design and cast components with tailored properties. Traditionally, microscopy examinations on sectioned cast iron samples have been used when analysing the microstructure in cast irons. Since all microstructural heterogeneity is in three-dimensions (3D), methods that provide a three-dimensional characterisation are essential for a deeper understanding of, both the microstructural features as well as the deformation and damage of cast irons. Therefore, different cast iron grades have been studied using synchrotron X-ray tomography and 3D x-ray diffraction (3DXRD) at ESRF in Grenoble, France. The samples were stepwise loaded and unloaded in-situ at in the tomography/3DXRD set-up to study the deformation with regard to microstructural constituents and the microstructural evolution in 3D. Based on the 3D tomography image sequences, digital volume correlation (DVC) was used for full strain field analysis and for the analysis of damage and deformation mechanisms. In addition, 3DXRD data were analysed to provide details on the lattice parameters and lattice strain of individual ferrite grains. This work shows the possibilities of such synchrotron experiments for advanced study of the mechanical behaviour of cast iron.

Detaljer

Författare
  • T. Sjögren
  • S. Hall
  • L. Elmquist
  • E. Dartfeldt
  • E. Larsson
  • M. Majkut
  • J. Elfsberg
  • P. Skoglund
  • J. Engqvist
Enheter & grupper
Externa organisationer
  • Research Institutes of Sweden (RISE)
  • European Synchrotron Radiation Facility
  • Scania CV AB
  • Xylem Water Solutions Manufacturing AB
Forskningsområden

Ämnesklassifikation (UKÄ) – OBLIGATORISK

  • Metallurgi och metalliska material
Originalspråkengelska
Titel på värdpublikationMCWASP XV: International Conference on Modelling of Casting, Welding and Advanced Solidification Processes
Volym861
Utgåva1
StatusPublished - 2020
PublikationskategoriForskning
Peer review utfördJa
Evenemang15th International Conference on Modelling of Casting, Welding and Advanced Solidification Processes, MCWASP 2020 - Jonkoping, Sverige
Varaktighet: 2020 jun 222020 jun 23

Publikationsserier

NamnIOP Conference Series: Materials Science and Engineering
ISSN (tryckt)1757-8981

Konferens

Konferens15th International Conference on Modelling of Casting, Welding and Advanced Solidification Processes, MCWASP 2020
LandSverige
OrtJonkoping
Period2020/06/222020/06/23