Direct laser deposition of functionally graded Ti-6Al-4V and Inconel 718 components

K Shah; Andrew Pinkerton; R Moat; Lin Li; Michael Preuss

Direct laser deposition of functionally graded Ti-6Al-4V and Inconel 718 components

K Shah, Andrew Pinkerton, R Moat, Lin Li, Michael Preuss

Mechanical and Aerospace Engineering

Research output: Chapter in Book/Conference proceeding › Conference contribution

Abstract

Laser direct metal deposition (LDMD) has developed from a prototyping to a single metal manufacturing tool. Its potential for creating multi-material and functionally graded structures is now beginning to be explored. In this work, three dimensional functionally graded structures of Ti-6Al-4V and Inconel 718 are fabricated by laser direct metal deposition (LDMD) on Inconel 718 substrate. The multi-track parts are built at a range of powder mass flow rates using a side nozzle and 1.5 kW Diode laser operating in both continuous and pulsed beam modes. Microstructure characterization and phase identification are performed by optical microscopy and X-ray diffraction. Only two samples are free of macro-scale cracks, one prepared with a continuous laser beam and one prepared with the beam in pulsed mode. XRD results show the presence of the brittle Ti2Ni phase in all samples.

Original language	English
Title of host publication	3rd Pacific International conference on applications of Lasers and Optics
Pages	CD (504)
Publication status	Published - Apr 2008
Event	3rd Pacific International conference on applications of Lasers and Optics - Duration: 1 Jan 1824 → …

Conference

Conference	3rd Pacific International conference on applications of Lasers and Optics
Period	1/01/24 → …

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@inproceedings{a4312832cdb34a71aaa0f6256523d81f,

title = "Direct laser deposition of functionally graded Ti-6Al-4V and Inconel 718 components",

abstract = "Laser direct metal deposition (LDMD) has developed from a prototyping to a single metal manufacturing tool. Its potential for creating multi-material and functionally graded structures is now beginning to be explored. In this work, three dimensional functionally graded structures of Ti-6Al-4V and Inconel 718 are fabricated by laser direct metal deposition (LDMD) on Inconel 718 substrate. The multi-track parts are built at a range of powder mass flow rates using a side nozzle and 1.5 kW Diode laser operating in both continuous and pulsed beam modes. Microstructure characterization and phase identification are performed by optical microscopy and X-ray diffraction. Only two samples are free of macro-scale cracks, one prepared with a continuous laser beam and one prepared with the beam in pulsed mode. XRD results show the presence of the brittle Ti2Ni phase in all samples.",

author = "K Shah and Andrew Pinkerton and R Moat and Lin Li and Michael Preuss",

year = "2008",

month = apr,

language = "English",

pages = "CD (504)",

booktitle = "3rd Pacific International conference on applications of Lasers and Optics",

note = "3rd Pacific International conference on applications of Lasers and Optics ; Conference date: 01-01-1824",

}

TY - GEN

T1 - Direct laser deposition of functionally graded Ti-6Al-4V and Inconel 718 components

AU - Shah, K

AU - Pinkerton, Andrew

AU - Moat, R

AU - Li, Lin

AU - Preuss, Michael

PY - 2008/4

Y1 - 2008/4

N2 - Laser direct metal deposition (LDMD) has developed from a prototyping to a single metal manufacturing tool. Its potential for creating multi-material and functionally graded structures is now beginning to be explored. In this work, three dimensional functionally graded structures of Ti-6Al-4V and Inconel 718 are fabricated by laser direct metal deposition (LDMD) on Inconel 718 substrate. The multi-track parts are built at a range of powder mass flow rates using a side nozzle and 1.5 kW Diode laser operating in both continuous and pulsed beam modes. Microstructure characterization and phase identification are performed by optical microscopy and X-ray diffraction. Only two samples are free of macro-scale cracks, one prepared with a continuous laser beam and one prepared with the beam in pulsed mode. XRD results show the presence of the brittle Ti2Ni phase in all samples.

AB - Laser direct metal deposition (LDMD) has developed from a prototyping to a single metal manufacturing tool. Its potential for creating multi-material and functionally graded structures is now beginning to be explored. In this work, three dimensional functionally graded structures of Ti-6Al-4V and Inconel 718 are fabricated by laser direct metal deposition (LDMD) on Inconel 718 substrate. The multi-track parts are built at a range of powder mass flow rates using a side nozzle and 1.5 kW Diode laser operating in both continuous and pulsed beam modes. Microstructure characterization and phase identification are performed by optical microscopy and X-ray diffraction. Only two samples are free of macro-scale cracks, one prepared with a continuous laser beam and one prepared with the beam in pulsed mode. XRD results show the presence of the brittle Ti2Ni phase in all samples.

M3 - Conference contribution

SP - CD (504)

BT - 3rd Pacific International conference on applications of Lasers and Optics

T2 - 3rd Pacific International conference on applications of Lasers and Optics

Y2 - 1 January 1824

ER -

Direct laser deposition of functionally graded Ti-6Al-4V and Inconel 718 components

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