Affordable Access

deepdyve-link
Publisher Website

Observation of microstructure evolution during inertia friction welding using in-situ synchrotron X-ray diffraction

Authors
  • Rowson, Matthew1
  • Bennett, Chris J.1
  • Azeem, Mohammed A.2, 3, 4
  • Magdysyuk, Oxana4
  • Rouse, James1
  • Lye, Ryan1
  • Davies, Joshua1
  • Bray, Simon5
  • Lee, Peter D.3
  • 1 University of Nottingham, United Kingdom , (United Kingdom)
  • 2 University of Leicester, United Kingdom , (United Kingdom)
  • 3 University College London, United Kingdom , (United Kingdom)
  • 4 Research Complex at Harwell, United Kingdom , (United Kingdom)
  • 5 Rolls-Royce plc, United Kingdom , (United Kingdom)
Type
Published Article
Journal
Journal of Synchrotron Radiation
Publisher
International Union of Crystallography
Publication Date
Mar 19, 2021
Volume
28
Issue
Pt 3
Pages
790–803
Identifiers
DOI: 10.1107/S1600577521001569
PMID: 33949987
PMCID: PMC8127373
Source
PubMed Central
Keywords
Disciplines
  • Research Papers
License
Unknown
External links

Abstract

The widespread use and development of inertia friction welding is currently restricted by an incomplete understanding of the deformation mechanisms and microstructure evolution during the process. Understanding phase transformations and lattice strains during inertia friction welding is essential for the development of robust numerical models capable of determining optimized process parameters and reducing the requirement for costly experimental trials. A unique compact rig has been designed and used in-situ with a high-speed synchrotron X-ray diffraction instrument to investigate the microstructure evolution during inertia friction welding of a high-carbon steel (BS1407). At the contact interface, the transformation from ferrite to austenite was captured in great detail, allowing for analysis of the phase fractions during the process. Measurement of the thermal response of the weld reveals that the transformation to austenite occurs 230 °C below the equilibrium start tem­per­ature of 725 °C. It is concluded that the localization of large strains around the contact interface produced as the specimens deform assists this non-equilibrium phase transformation.

Report this publication

Statistics

Seen <100 times