3D analysis of fatigue crack propagation in cast irons using synchrotron X-ray tomography and 3D-XRD

Reference number 2018-04403
Coordinator RISE Research Institutes of Sweden AB - RISE Safety, Borås
Funding from Vinnova SEK 500 000
Project duration November 2018 - November 2019
Status Ongoing
Venture Research infrastructure - utilisation and collaboration
Call Industriella pilotprojekt för neutron- och fotonexperiment vid storskalig forskningsinfrastruktur 2018

Purpose and goal

The aim of the project is to perform synchrotron X-ray tomography during in situ fatigue crack opening of an already existing crack. The goal is a deeper understanding of the relation between the different microstructural constituents and the propagation of cracks. The deeper understanding would enhance material development efforts and the ability to design and cast components with improved fatigue properties.

Expected results and effects

The project is expected to result in a deeper understandning of deformation mechanisms in cast iron Alloys, with its complex structure including graphite precipitations and a metallic matrix, as well as a deeper understanding is expected to facilitate improved properties through optimised production processes and alloy systems. Furthermore, the project will generate material data that may be used for numerical strength predictions and new material models. At the industry, the results will be used for developing combustion Engines with reduced envrionmental impact.

Planned approach and implementation

Project management by Scania. Experimental planning and selection of suitable synchrotron infrastructure is lead by RISE and done in cooperation. Experiments at the chosen infrastructure will be performed by the resarch partners under lead of Swecast (now RISE). Evaluation and analysis of results will be lead by RISE and performed by the reserach partners. Additional, conventional, analysis of microstructures will be done by Scania or Swecast. Outside the project: implementation in industrial material development and numerical strength predictions.

The project description has been provided by the project members themselves and the text has not been examined by our editors.