Isomorphic Grain Inoculation in Ti-6Al-4V during Additive Manufacturing

Jacob Kennedy; Alec Davis; A Caballero; Alistair Garner; Jack Donoghue; J  Zollinger; E Bouzy; Ed Pickering; Phil Prangnell

doi:10.1016/j.mlblux.2020.100057

Isomorphic Grain Inoculation in Ti-6Al-4V during Additive Manufacturing

Jacob Kennedy, Alec Davis, A Caballero , Alistair Garner, Jack Donoghue, J Zollinger, E Bouzy , Ed Pickering, Phil Prangnell

Research output: Contribution to journal › Article › peer-review

Abstract

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.

Original language	English
Journal	Materials Letters: X
DOIs	https://doi.org/10.1016/j.mlblux.2020.100057
Publication status	Published - 10 Dec 2020

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10.1016/j.mlblux.2020.100057

[NEWAM] New Wire-Additive Manufacturing
Prangnell, P. (PI), Pickering, E. (CoI), Robson, J. (CoI) & Shanthraj, P. (CoI)
25/06/18 → 24/06/24
Project: Research

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title = "Isomorphic Grain Inoculation in Ti-6Al-4V during Additive Manufacturing",

abstract = "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.",

author = "Jacob Kennedy and Alec Davis and A Caballero and Alistair Garner and Jack Donoghue and J Zollinger and E Bouzy and Ed Pickering and Phil Prangnell",

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doi = "10.1016/j.mlblux.2020.100057",

language = "English",

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AU - Kennedy, Jacob

AU - Davis, Alec

AU - Caballero , A

AU - Garner, Alistair

AU - Donoghue, Jack

AU - Zollinger, J

AU - Bouzy , E

AU - Pickering, Ed

AU - Prangnell, Phil

PY - 2020/12/10

Y1 - 2020/12/10

N2 - 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.

AB - 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.

U2 - 10.1016/j.mlblux.2020.100057

DO - 10.1016/j.mlblux.2020.100057

M3 - Article

SN - 2590-1508

JO - Materials Letters: X

JF - Materials Letters: X

ER -

Isomorphic Grain Inoculation in Ti-6Al-4V during Additive Manufacturing

Abstract

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[NEWAM] New Wire-Additive Manufacturing

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