Isomorphic grain inoculation in Ti-6Al-4V during additive manufacturing

Isomorphic grain inoculation in Ti-6Al-4V during additive manufacturing

The potential for using isomorphic inoculation (ISI) to grain refine titanium alloys in additive manufacturing was investigated by adding TiAlNb particles to Ti-64 during building test samples. A surviving particle was identified and its crystallographic relationship with the matrix studied by trans...

Full description

Bibliographic Details
Main Authors: J.R. Kennedy, A.E. Davis, A. Caballero, A. Garner, J. Donoghue, S. Williams, J. Zollinger, E. Bouzy, E.J. Pickering, P.B. Prangnell
Format: Article
Language:English
Published: Elsevier 2020-12-01
Series:Materials Letters: X
Subjects:
Solidification
Titanium alloys
Epitaxial growth
Additive manufacturing
Online Access:http://www.sciencedirect.com/science/article/pii/S259015082030020X
Description
Summary:The potential for using isomorphic inoculation (ISI) to grain refine titanium alloys in additive manufacturing was investigated by adding TiAlNb particles to Ti-64 during building test samples. A surviving particle was identified and its crystallographic relationship with the matrix studied by transmission Kikuchi diffraction. The particle and bulk matrix grain were shown to have the same crystallographic orientation, demonstrating that the ISI mechanism of solidification bypasses the nucleation step in favour of direct epitaxial growth.
ISSN:2590-1508

Similar Items