Effect of processing parameters on microstructure of additively manufactured α+β titanium alloys

Maqina Nonkosi Elizabeth; Janse van Vuuren Arno; Becker Thorsten Hermann

doi:10.1051/matecconf/202440607015

MATEC Web of Conferences (Jan 2024)

Effect of processing parameters on microstructure of additively manufactured α+β titanium alloys

Maqina Nonkosi Elizabeth,
Janse van Vuuren Arno,
Becker Thorsten Hermann

Affiliations

Maqina Nonkosi Elizabeth: Centre for Materials Engineering, Department of Mechanical Engineering, University of Cape Town
Janse van Vuuren Arno: Centre for High Resolution Transmission Electron Microscopy, Department of Physics, Nelson Mandela University
Becker Thorsten Hermann: Centre for Materials Engineering, Department of Mechanical Engineering, University of Cape Town

DOI: https://doi.org/10.1051/matecconf/202440607015
Journal volume & issue: Vol. 406
p. 07015

Abstract

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The effect of processing parameters on the microstructure was investigated on three α+β alloys, namely Ti6Al4V (Ti64), Ti6Al2Sn4Zr6Mo (Ti6246) and Ti6.5Al3.5Mo1.5Zr0.3Si (TC11) fabricated by laser powder bed fusion (LPBF). Electron Backscattered Diffraction (EBSD) was used to identify microstructural characteristics, including prior beta grains (PBGs) structure, hierarchical lath morphology and orientation. Acicular martensitic (α’) laths form within the PBGs following a crystallographic relationship. The martensite displays a hierarchical structure.

Published in MATEC Web of Conferences

ISSN: 2261-236X (Online)
Publisher: EDP Sciences
Country of publisher: France
LCC subjects: Technology: Engineering (General). Civil engineering (General)
Website: http://www.matec-conferences.org

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