Influence of Small Particles Inclusion on Selective Laser Melting of Ti-6Al-4V Powder
Document Type
Contribution to Book
Publication Date
10-25-2017
Publication Title
IOP Conference Series: Materials Science and Engineering
DOI
10.1088/1757-899X/272/1/012024
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.
Recommended Citation
Gong, Haijun, J. J. S. Dilip, Li Yang, Chong Teng, Brent Stucker.
2017.
"Influence of Small Particles Inclusion on Selective Laser Melting of Ti-6Al-4V Powder."
IOP Conference Series: Materials Science and Engineering, 272 Atlanta, GA: IOP Publishing Ltd.
doi: 10.1088/1757-899X/272/1/012024 source: https://iopscience.iop.org/article/10.1088/1757-899X/272/1/012024/pdf
https://digitalcommons.georgiasouthern.edu/manufact-eng-facpubs/60
