Optimizing Laser Parameters of Functional Graded Grade 5 Titanium Alloy (TI6AL4V) and Titanium Carbide (TIC)

P. Ratilal; D. M. Madyira; E. T. Akinlabi; T. O. Babarinde

doi:10.1088/1757-899X/413/1/012070

Optimizing Laser Parameters of Functional Graded Grade 5 Titanium Alloy (TI6AL4V) and Titanium Carbide (TIC)

P. Ratilal, D. M. Madyira, E. T. Akinlabi, T. O. Babarinde

Mechanical Engineering Science

Research output: Contribution to journal › Conference article › peer-review

2 Citations (Scopus)

Abstract

Functionally graded materials (FGMs) are materials in which the spatial chemical composition and microstructure gradually change resulting in a corresponding spatial change in the material properties. For this study, grade 5 titanium alloy (Ti6Al4V) and titanium carbide (TiC) powders were co-sintered using laser metal deposition (LMD) on Ti6Al4V substrate. The challenge of this process was determining the process parameters that minimizes or prevent macro cracking due to high thermal gradients and hence the residual stresses. The aim was to determine the optimum parameters. The laser energy density (LED) was used to characterize the processing parameters applied. It was found that when the energy density is in the range of 15 - 25 MJ/m², the FGM cracked. When the energy density is in the range of 12 - 16 MJ/m², the FGM did not crack.

Original language	English
Article number	012070
Journal	IOP Conference Series: Materials Science and Engineering
Volume	413
Issue number	1
DOIs	https://doi.org/10.1088/1757-899X/413/1/012070
Publication status	Published - 10 Sept 2018
Event	2nd International Conference on Engineering for Sustainable World, ICESW 2018 - Ota, Nigeria Duration: 9 Jul 2018 → 13 Jul 2018

Keywords

FGMs
Laser energy density
Laser metal deposition
Ti6Al4V
TiC

ASJC Scopus subject areas

General Materials Science
General Engineering

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10.1088/1757-899X/413/1/012070

Cite this

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title = "Optimizing Laser Parameters of Functional Graded Grade 5 Titanium Alloy (TI6AL4V) and Titanium Carbide (TIC)",

abstract = "Functionally graded materials (FGMs) are materials in which the spatial chemical composition and microstructure gradually change resulting in a corresponding spatial change in the material properties. For this study, grade 5 titanium alloy (Ti6Al4V) and titanium carbide (TiC) powders were co-sintered using laser metal deposition (LMD) on Ti6Al4V substrate. The challenge of this process was determining the process parameters that minimizes or prevent macro cracking due to high thermal gradients and hence the residual stresses. The aim was to determine the optimum parameters. The laser energy density (LED) was used to characterize the processing parameters applied. It was found that when the energy density is in the range of 15 - 25 MJ/m2, the FGM cracked. When the energy density is in the range of 12 - 16 MJ/m2, the FGM did not crack.",

keywords = "FGMs, Laser energy density, Laser metal deposition, Ti6Al4V, TiC",

author = "P. Ratilal and Madyira, {D. M.} and Akinlabi, {E. T.} and Babarinde, {T. O.}",

note = "Publisher Copyright: {\textcopyright} Published under licence by IOP Publishing Ltd.; 2nd International Conference on Engineering for Sustainable World, ICESW 2018 ; Conference date: 09-07-2018 Through 13-07-2018",

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T1 - Optimizing Laser Parameters of Functional Graded Grade 5 Titanium Alloy (TI6AL4V) and Titanium Carbide (TIC)

AU - Ratilal, P.

AU - Madyira, D. M.

AU - Akinlabi, E. T.

AU - Babarinde, T. O.

N1 - Publisher Copyright: © Published under licence by IOP Publishing Ltd.

PY - 2018/9/10

Y1 - 2018/9/10

N2 - Functionally graded materials (FGMs) are materials in which the spatial chemical composition and microstructure gradually change resulting in a corresponding spatial change in the material properties. For this study, grade 5 titanium alloy (Ti6Al4V) and titanium carbide (TiC) powders were co-sintered using laser metal deposition (LMD) on Ti6Al4V substrate. The challenge of this process was determining the process parameters that minimizes or prevent macro cracking due to high thermal gradients and hence the residual stresses. The aim was to determine the optimum parameters. The laser energy density (LED) was used to characterize the processing parameters applied. It was found that when the energy density is in the range of 15 - 25 MJ/m2, the FGM cracked. When the energy density is in the range of 12 - 16 MJ/m2, the FGM did not crack.

AB - Functionally graded materials (FGMs) are materials in which the spatial chemical composition and microstructure gradually change resulting in a corresponding spatial change in the material properties. For this study, grade 5 titanium alloy (Ti6Al4V) and titanium carbide (TiC) powders were co-sintered using laser metal deposition (LMD) on Ti6Al4V substrate. The challenge of this process was determining the process parameters that minimizes or prevent macro cracking due to high thermal gradients and hence the residual stresses. The aim was to determine the optimum parameters. The laser energy density (LED) was used to characterize the processing parameters applied. It was found that when the energy density is in the range of 15 - 25 MJ/m2, the FGM cracked. When the energy density is in the range of 12 - 16 MJ/m2, the FGM did not crack.

KW - FGMs

KW - Laser energy density

KW - Laser metal deposition

KW - Ti6Al4V

KW - TiC

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U2 - 10.1088/1757-899X/413/1/012070

DO - 10.1088/1757-899X/413/1/012070

M3 - Conference article

AN - SCOPUS:85054250697

SN - 1757-8981

VL - 413

JO - IOP Conference Series: Materials Science and Engineering

JF - IOP Conference Series: Materials Science and Engineering

IS - 1

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T2 - 2nd International Conference on Engineering for Sustainable World, ICESW 2018

Y2 - 9 July 2018 through 13 July 2018

ER -

Optimizing Laser Parameters of Functional Graded Grade 5 Titanium Alloy (TI6AL4V) and Titanium Carbide (TIC)

Abstract

Keywords

ASJC Scopus subject areas

Access to Document

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