Microstructure and microtexture of linear friction welded Ti-6Al-4V

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Colleges, School and Institutes

External organisations

  • Rolls Royce PLC

Abstract

In this study, the microstructural features of linear friction welded Ti-6Al-4V joints have been investigated using X-ray diffraction (XRD), scanning electron microscopy (SEM) including electron backscatter diffraction (EBSD), and transmission electron microscopy (TEM). It has been found that the volume fraction of the β phase in the weld regions is much lower than that in the base metal. The chemical composition at the weld line region was found to be homogeneous suggesting that a martensitic transformation occurred during welding. Strong crystallographic textures were observed across the weld line, with the width of the strongly textured region being approximately 500 μm wide at the mid-section of the weld, and increasing away from the centre to about 1000μm at the edge of the weld. A very strong {0001}<1010> texture component was identified in the weld line zone and the thermomechanically affected zone.

Details

Original languageEnglish
Title of host publicationTi 2011 - Proceedings of the 12th World Conference on Titanium
Publication statusPublished - 1 Dec 2012
Event12th World Conference on Titanium, Ti 2011 - Beijing, China
Duration: 19 Jun 201124 Jun 2011

Conference

Conference12th World Conference on Titanium, Ti 2011
CountryChina
CityBeijing
Period19/06/1124/06/11

Keywords

  • EBSD, Linear friction welding, Texture, Ti-6Al-4V, Titanium

ASJC Scopus subject areas