Journal of Physics paper.pdf (1.37 MB)
Microstructure of Ti-6Al-4V produced by selective laser melting
journal contribution
posted on 2016-08-02, 10:44 authored by Marco Simonelli, Yau TseYau Tse, Christopher TuckTi-6Al-4V is the most widely used titanium alloy. Manufacturing of Ti-6Al-4V components using novel additive processing techniques such as selective laser melting is of great interest. This study focuses on the microstructure characterisation of Ti-6Al-4V components produced by selective laser melting (SLM) with full (Ti-6Al-4V base plate) and partial (Ti-6Al-4V needle-shaped bed) support. The starting material, a plasma atomised powder, and the component products are studied using various microscopy techniques including optical, scanning electron and transmission electron microscopy and electron backscattered diffraction (EBSD). Powder particles are fully dense, possess a spherical shape and are composed of acicular α phase. The as-built material shows oriented acicular martensitic phase with well defined columnar grains. The morphology of martensitic phase and microstructural evolution will be discussed in relation to the SLM processing parameters employed and the different cooling rates experienced by the components.
History
School
- Aeronautical, Automotive, Chemical and Materials Engineering
Department
- Materials
Published in
ELECTRON MICROSCOPY AND ANALYSIS GROUP CONFERENCE 2011 (EMAG 2011)Volume
371Pages
? - ? (4)Citation
SIMONELLI, M., TSE, Y. and TUCK, C., 2012. Microstructure of Ti-6Al-4V produced by selective laser melting. Journal of Physics: Conference Series, 371, conference no. 1, paper no. 012084.Publisher
Institute of Physics (© the authors)Version
- AM (Accepted Manuscript)
Publisher statement
This work is made available according to the conditions of the Creative Commons Attribution 4.0 International (CC BY 4.0) licence. Full details of this licence are available at: http://creativecommons.org/licenses/ by/4.0/Publication date
2012ISSN
1742-6588eISSN
1742-6596Publisher version
Language
- en