Defect morphology in Ti-6Al-4V parts fabricated by Selective Laser Melting and Electron Beam Melting

Haijun Gong; Khalid Rafi; N. V. Karthik; Thomas Starr; Brent Stucker

Defect morphology in Ti-6Al-4V parts fabricated by Selective Laser Melting and Electron Beam Melting

Haijun Gong, Khalid Rafi, N. V. Karthik, Thomas Starr, Brent Stucker

Manufacturing Engineering

University of Louisville

Research output: Contribution to conference › Paper › peer-review

53 Scopus citations

Abstract

In order to investigate the morphology of defects present in Selective Laser Melting (SLM) and Electron Beam Melting (EBM) processes, Ti-6Al-4V specimens were fabricated with varying porosity using non-optimum processing parameters. Defective specimens were sectioned and polished for microscopy. Image processing was adopted for statistically analyzing the characteristics of defects, such as distribution of defect area and dimensional proportion of each defect. It is found that defect morphology is influenced by process parameters as a result of a variation in the melt pool. Image processing of a cross-section could be a feasible way for calculating porosity of specimens.

Original language	English
Pages	440-453
Number of pages	14
State	Published - 2013
Event	24th International Solid Freeform Fabrication Symposium - An Additive Manufacturing Conference, SFF 2013 - Austin, TX, United States Duration: Aug 12 2013 → Aug 14 2013

Conference

Conference	24th International Solid Freeform Fabrication Symposium - An Additive Manufacturing Conference, SFF 2013
Country/Territory	United States
City	Austin, TX
Period	08/12/13 → 08/14/13

Cite this

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title = "Defect morphology in Ti-6Al-4V parts fabricated by Selective Laser Melting and Electron Beam Melting",

abstract = "In order to investigate the morphology of defects present in Selective Laser Melting (SLM) and Electron Beam Melting (EBM) processes, Ti-6Al-4V specimens were fabricated with varying porosity using non-optimum processing parameters. Defective specimens were sectioned and polished for microscopy. Image processing was adopted for statistically analyzing the characteristics of defects, such as distribution of defect area and dimensional proportion of each defect. It is found that defect morphology is influenced by process parameters as a result of a variation in the melt pool. Image processing of a cross-section could be a feasible way for calculating porosity of specimens.",

author = "Haijun Gong and Khalid Rafi and Karthik, {N. V.} and Thomas Starr and Brent Stucker",

year = "2013",

language = "English",

pages = "440--453",

note = "24th International Solid Freeform Fabrication Symposium - An Additive Manufacturing Conference, SFF 2013 ; Conference date: 12-08-2013 Through 14-08-2013",

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Defect morphology in Ti-6Al-4V parts fabricated by Selective Laser Melting and Electron Beam Melting. / Gong, Haijun; Rafi, Khalid; Karthik, N. V. et al.
2013. 440-453 Paper presented at 24th International Solid Freeform Fabrication Symposium - An Additive Manufacturing Conference, SFF 2013, Austin, TX, United States.

Research output: Contribution to conference › Paper › peer-review

TY - CONF

T1 - Defect morphology in Ti-6Al-4V parts fabricated by Selective Laser Melting and Electron Beam Melting

AU - Gong, Haijun

AU - Rafi, Khalid

AU - Karthik, N. V.

AU - Starr, Thomas

AU - Stucker, Brent

PY - 2013

Y1 - 2013

N2 - In order to investigate the morphology of defects present in Selective Laser Melting (SLM) and Electron Beam Melting (EBM) processes, Ti-6Al-4V specimens were fabricated with varying porosity using non-optimum processing parameters. Defective specimens were sectioned and polished for microscopy. Image processing was adopted for statistically analyzing the characteristics of defects, such as distribution of defect area and dimensional proportion of each defect. It is found that defect morphology is influenced by process parameters as a result of a variation in the melt pool. Image processing of a cross-section could be a feasible way for calculating porosity of specimens.

AB - In order to investigate the morphology of defects present in Selective Laser Melting (SLM) and Electron Beam Melting (EBM) processes, Ti-6Al-4V specimens were fabricated with varying porosity using non-optimum processing parameters. Defective specimens were sectioned and polished for microscopy. Image processing was adopted for statistically analyzing the characteristics of defects, such as distribution of defect area and dimensional proportion of each defect. It is found that defect morphology is influenced by process parameters as a result of a variation in the melt pool. Image processing of a cross-section could be a feasible way for calculating porosity of specimens.

UR - http://www.scopus.com/inward/record.url?scp=84898421042&partnerID=8YFLogxK

M3 - Paper

AN - SCOPUS:84898421042

SP - 440

EP - 453

T2 - 24th International Solid Freeform Fabrication Symposium - An Additive Manufacturing Conference, SFF 2013

Y2 - 12 August 2013 through 14 August 2013

ER -

Defect morphology in Ti-6Al-4V parts fabricated by Selective Laser Melting and Electron Beam Melting

Abstract

Conference

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