Influence of Small Particles Inclusion on Selective Laser Melting of Ti-6al-4v Powder

Haijun Gong; J. J.S. Dilip; Li Yang; Chong Teng; Brent Stucker

doi:10.1088/1757-899X/272/1/012024

Influence of Small Particles Inclusion on Selective Laser Melting of Ti-6al-4v Powder

Haijun Gong, J. J.S. Dilip, Li Yang, Chong Teng, Brent Stucker

Manufacturing Engineering

Research output: Contribution to book or proceeding › Chapter

21 Scopus citations

Abstract

The particle size distribution and powder morphology of metallic powders have an important effect on powder bed fusion based additive manufacturing processes, such as selective laser melting (SLM). The process development and parameter optimization require a fundamental understanding of the influence of powder on SLM. This study introduces a pre-alloyed titanium alloy Ti-6Al-4V powder, which has a certain amount of small particles, for SLM. The influence of small particle inclusion is investigated through microscopy of surface topography, elemental and microstructural analysis, and mechanical testing, compared to the Ti-6Al-4V powder provided by SLM machine vendor. It is found that the small particles inclusion in Ti-6Al-4V powder has a noticeable effect on extra laser energy absorption, which may develop imperfections and deteriorate the SLM fatigue performance.

Original language	American English
Title of host publication	Proceedings of the International Conference on Mechanical, Materials and Manufacturing
DOIs	https://doi.org/10.1088/1757-899X/272/1/012024
State	Published - Jan 1 2017

Keywords

Ti-6Al-4V powder
selective laser melting
small particles inclusion

DC Disciplines

Engineering

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https://doi.org/10.1088/1757-899X/272/1/012024

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title = "Influence of Small Particles Inclusion on Selective Laser Melting of Ti-6al-4v Powder",

abstract = " The particle size distribution and powder morphology of metallic powders have an important effect on powder bed fusion based additive manufacturing processes, such as selective laser melting (SLM). The process development and parameter optimization require a fundamental understanding of the influence of powder on SLM. This study introduces a pre-alloyed titanium alloy Ti-6Al-4V powder, which has a certain amount of small particles, for SLM. The influence of small particle inclusion is investigated through microscopy of surface topography, elemental and microstructural analysis, and mechanical testing, compared to the Ti-6Al-4V powder provided by SLM machine vendor. It is found that the small particles inclusion in Ti-6Al-4V powder has a noticeable effect on extra laser energy absorption, which may develop imperfections and deteriorate the SLM fatigue performance.",

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author = "Haijun Gong and Dilip, {J. J.S.} and Li Yang and Chong Teng and Brent Stucker",

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T1 - Influence of Small Particles Inclusion on Selective Laser Melting of Ti-6al-4v Powder

AU - Gong, Haijun

AU - Dilip, J. J.S.

AU - Yang, Li

AU - Teng, Chong

AU - Stucker, Brent

PY - 2017/1/1

Y1 - 2017/1/1

N2 - The particle size distribution and powder morphology of metallic powders have an important effect on powder bed fusion based additive manufacturing processes, such as selective laser melting (SLM). The process development and parameter optimization require a fundamental understanding of the influence of powder on SLM. This study introduces a pre-alloyed titanium alloy Ti-6Al-4V powder, which has a certain amount of small particles, for SLM. The influence of small particle inclusion is investigated through microscopy of surface topography, elemental and microstructural analysis, and mechanical testing, compared to the Ti-6Al-4V powder provided by SLM machine vendor. It is found that the small particles inclusion in Ti-6Al-4V powder has a noticeable effect on extra laser energy absorption, which may develop imperfections and deteriorate the SLM fatigue performance.

AB - The particle size distribution and powder morphology of metallic powders have an important effect on powder bed fusion based additive manufacturing processes, such as selective laser melting (SLM). The process development and parameter optimization require a fundamental understanding of the influence of powder on SLM. This study introduces a pre-alloyed titanium alloy Ti-6Al-4V powder, which has a certain amount of small particles, for SLM. The influence of small particle inclusion is investigated through microscopy of surface topography, elemental and microstructural analysis, and mechanical testing, compared to the Ti-6Al-4V powder provided by SLM machine vendor. It is found that the small particles inclusion in Ti-6Al-4V powder has a noticeable effect on extra laser energy absorption, which may develop imperfections and deteriorate the SLM fatigue performance.

KW - Ti-6Al-4V powder

KW - selective laser melting

KW - small particles inclusion

UR - https://digitalcommons.georgiasouthern.edu/manufact-eng-facpubs/16

U2 - 10.1088/1757-899X/272/1/012024

DO - 10.1088/1757-899X/272/1/012024

M3 - Chapter

BT - Proceedings of the International Conference on Mechanical, Materials and Manufacturing

ER -

Influence of Small Particles Inclusion on Selective Laser Melting of Ti-6al-4v Powder

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Keywords

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