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

Research output: Contribution to book or proceeding › Chapter

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	American English
Title of host publication	Proceedings of the Solid Freeform Fabrication Symposium
State	Published - Aug 16 2013

Keywords

Defect morphology
Electron beam melting
Fabricated
Selective laser melting
Ti-6Al-4V parts

DC Disciplines

Manufacturing

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.",

keywords = "Defect morphology, Electron beam melting, Fabricated, Selective laser melting, Ti-6Al-4V parts",

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

year = "2013",

month = aug,

day = "16",

language = "American English",

booktitle = "Proceedings of the Solid Freeform Fabrication Symposium",

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TY - CHAP

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 - 2013/8/16

Y1 - 2013/8/16

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.

KW - Defect morphology

KW - Electron beam melting

KW - Fabricated

KW - Selective laser melting

KW - Ti-6Al-4V parts

UR - https://sffsymposium.engr.utexas.edu/Manuscripts/2013/2013-34-Gong.pdf

M3 - Chapter

BT - Proceedings of the Solid Freeform Fabrication Symposium

ER -

Defect Morphology in Ti-6Al-4V Parts Fabricated by Selective Laser Melting and Electron Beam Melting

Abstract

Keywords

DC Disciplines

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