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A comparison of laser additive manufacturing using gas and plasma-atomized Ti-6A1-4V powders

Research output: Contribution in Book/Report/Proceedings - With ISBN/ISSNConference contribution/Paperpeer-review

Published

Standard

A comparison of laser additive manufacturing using gas and plasma-atomized Ti-6A1-4V powders. / Ahsan, M. Naveed; Pinkerton, Andrew J.; Ali, Laiq.

Innovative Developments in Virtual and Physical Prototyping. ed. / PJ Bartolo; ACS DeLemos; APO Tojeira; AMH Pereira; AJ Mateus; ALA Mendes; C DosSantos; DMF Freitas; HM Bartolo; HD Almeida; DosReis IM; JR Dias; MAN Domingos; NMF Alves; RFB Pereira; TMF Patricio; TMD Ferreira. Boca Raton : CRC PRESS-TAYLOR & FRANCIS GROUP, 2012. p. 625-633.

Research output: Contribution in Book/Report/Proceedings - With ISBN/ISSNConference contribution/Paperpeer-review

Harvard

Ahsan, MN, Pinkerton, AJ & Ali, L 2012, A comparison of laser additive manufacturing using gas and plasma-atomized Ti-6A1-4V powders. in PJ Bartolo, ACS DeLemos, APO Tojeira, AMH Pereira, AJ Mateus, ALA Mendes, C DosSantos, DMF Freitas, HM Bartolo, HD Almeida, D IM, JR Dias, MAN Domingos, NMF Alves, RFB Pereira, TMF Patricio & TMD Ferreira (eds), Innovative Developments in Virtual and Physical Prototyping. CRC PRESS-TAYLOR & FRANCIS GROUP, Boca Raton, pp. 625-633, 5th International Conference on Advanced Research and Rapid Prototyping, Leiria, 28/09/11.

APA

Ahsan, M. N., Pinkerton, A. J., & Ali, L. (2012). A comparison of laser additive manufacturing using gas and plasma-atomized Ti-6A1-4V powders. In PJ. Bartolo, ACS. DeLemos, APO. Tojeira, AMH. Pereira, AJ. Mateus, ALA. Mendes, C. DosSantos, DMF. Freitas, HM. Bartolo, HD. Almeida, D. IM, JR. Dias, MAN. Domingos, NMF. Alves, RFB. Pereira, TMF. Patricio, & TMD. Ferreira (Eds.), Innovative Developments in Virtual and Physical Prototyping (pp. 625-633). CRC PRESS-TAYLOR & FRANCIS GROUP.

Vancouver

Ahsan MN, Pinkerton AJ, Ali L. A comparison of laser additive manufacturing using gas and plasma-atomized Ti-6A1-4V powders. In Bartolo PJ, DeLemos ACS, Tojeira APO, Pereira AMH, Mateus AJ, Mendes ALA, DosSantos C, Freitas DMF, Bartolo HM, Almeida HD, IM D, Dias JR, Domingos MAN, Alves NMF, Pereira RFB, Patricio TMF, Ferreira TMD, editors, Innovative Developments in Virtual and Physical Prototyping. Boca Raton: CRC PRESS-TAYLOR & FRANCIS GROUP. 2012. p. 625-633

Author

Ahsan, M. Naveed ; Pinkerton, Andrew J. ; Ali, Laiq. / A comparison of laser additive manufacturing using gas and plasma-atomized Ti-6A1-4V powders. Innovative Developments in Virtual and Physical Prototyping. editor / PJ Bartolo ; ACS DeLemos ; APO Tojeira ; AMH Pereira ; AJ Mateus ; ALA Mendes ; C DosSantos ; DMF Freitas ; HM Bartolo ; HD Almeida ; DosReis IM ; JR Dias ; MAN Domingos ; NMF Alves ; RFB Pereira ; TMF Patricio ; TMD Ferreira. Boca Raton : CRC PRESS-TAYLOR & FRANCIS GROUP, 2012. pp. 625-633

Bibtex

@inproceedings{c21213388c8c4f999f789a24479c8651,
title = "A comparison of laser additive manufacturing using gas and plasma-atomized Ti-6A1-4V powders",
abstract = "This research presents a comparative study of the characteristics of laser additive manufacturing (LAM) using two types of Ti-6A1-4V powder. Ti-6A1-4V powders prepared using the gas-atomization (GA) and the plasma rotating electrode (PREP) processes were first analyzed using laser diffraction, scanning electron microscopy and microcomputed tomography. A 1.5 kW diode laser with a coaxial deposition head was then used to deposit a number of thin-wall structures at a range of processing parameters from each of the powders. The deposited structures were characterized using optical microscopy, scanning electron microscopy, x-ray diffraction and microcomputed tomography (MicroCT). In both cases, deposits of Ti-6A1-4V exhibit a unique epitaxial prior beta grains microstructure that transforms to alpha lathes and retained beta during cooling. X-ray diffraction results show that the overall microstructure is alpha + beta. The lamellar alpha + beta phase spacing (S alpha+beta) increases with laser power but seems unaffected by variation in the powder mass flow rate. Micro hardness of the laser deposited Ti-6A1-4V is dependent on the lamellar a 0 phase spacing (S alpha+beta). The results show some potential benefits of using PREP powder in laser additive manufacturing. PREP powder has a higher deposition rate and deposits show lower intralayer porosity and lower surface roughness. However, PREP powder deposits show lower micro hardness than GA powder deposits.",
author = "Ahsan, {M. Naveed} and Pinkerton, {Andrew J.} and Laiq Ali",
year = "2012",
language = "English",
isbn = "978-0-415-68418-7",
pages = "625--633",
editor = "PJ Bartolo and ACS DeLemos and APO Tojeira and AMH Pereira and AJ Mateus and ALA Mendes and C DosSantos and DMF Freitas and HM Bartolo and HD Almeida and DosReis IM and JR Dias and MAN Domingos and NMF Alves and RFB Pereira and TMF Patricio and TMD Ferreira",
booktitle = "Innovative Developments in Virtual and Physical Prototyping",
publisher = "CRC PRESS-TAYLOR & FRANCIS GROUP",
note = "5th International Conference on Advanced Research and Rapid Prototyping ; Conference date: 28-09-2011 Through 01-10-2011",

}

RIS

TY - GEN

T1 - A comparison of laser additive manufacturing using gas and plasma-atomized Ti-6A1-4V powders

AU - Ahsan, M. Naveed

AU - Pinkerton, Andrew J.

AU - Ali, Laiq

PY - 2012

Y1 - 2012

N2 - This research presents a comparative study of the characteristics of laser additive manufacturing (LAM) using two types of Ti-6A1-4V powder. Ti-6A1-4V powders prepared using the gas-atomization (GA) and the plasma rotating electrode (PREP) processes were first analyzed using laser diffraction, scanning electron microscopy and microcomputed tomography. A 1.5 kW diode laser with a coaxial deposition head was then used to deposit a number of thin-wall structures at a range of processing parameters from each of the powders. The deposited structures were characterized using optical microscopy, scanning electron microscopy, x-ray diffraction and microcomputed tomography (MicroCT). In both cases, deposits of Ti-6A1-4V exhibit a unique epitaxial prior beta grains microstructure that transforms to alpha lathes and retained beta during cooling. X-ray diffraction results show that the overall microstructure is alpha + beta. The lamellar alpha + beta phase spacing (S alpha+beta) increases with laser power but seems unaffected by variation in the powder mass flow rate. Micro hardness of the laser deposited Ti-6A1-4V is dependent on the lamellar a 0 phase spacing (S alpha+beta). The results show some potential benefits of using PREP powder in laser additive manufacturing. PREP powder has a higher deposition rate and deposits show lower intralayer porosity and lower surface roughness. However, PREP powder deposits show lower micro hardness than GA powder deposits.

AB - This research presents a comparative study of the characteristics of laser additive manufacturing (LAM) using two types of Ti-6A1-4V powder. Ti-6A1-4V powders prepared using the gas-atomization (GA) and the plasma rotating electrode (PREP) processes were first analyzed using laser diffraction, scanning electron microscopy and microcomputed tomography. A 1.5 kW diode laser with a coaxial deposition head was then used to deposit a number of thin-wall structures at a range of processing parameters from each of the powders. The deposited structures were characterized using optical microscopy, scanning electron microscopy, x-ray diffraction and microcomputed tomography (MicroCT). In both cases, deposits of Ti-6A1-4V exhibit a unique epitaxial prior beta grains microstructure that transforms to alpha lathes and retained beta during cooling. X-ray diffraction results show that the overall microstructure is alpha + beta. The lamellar alpha + beta phase spacing (S alpha+beta) increases with laser power but seems unaffected by variation in the powder mass flow rate. Micro hardness of the laser deposited Ti-6A1-4V is dependent on the lamellar a 0 phase spacing (S alpha+beta). The results show some potential benefits of using PREP powder in laser additive manufacturing. PREP powder has a higher deposition rate and deposits show lower intralayer porosity and lower surface roughness. However, PREP powder deposits show lower micro hardness than GA powder deposits.

M3 - Conference contribution/Paper

SN - 978-0-415-68418-7

SP - 625

EP - 633

BT - Innovative Developments in Virtual and Physical Prototyping

A2 - Bartolo, PJ

A2 - DeLemos, ACS

A2 - Tojeira, APO

A2 - Pereira, AMH

A2 - Mateus, AJ

A2 - Mendes, ALA

A2 - DosSantos, C

A2 - Freitas, DMF

A2 - Bartolo, HM

A2 - Almeida, HD

A2 - IM, DosReis

A2 - Dias, JR

A2 - Domingos, MAN

A2 - Alves, NMF

A2 - Pereira, RFB

A2 - Patricio, TMF

A2 - Ferreira, TMD

PB - CRC PRESS-TAYLOR & FRANCIS GROUP

CY - Boca Raton

T2 - 5th International Conference on Advanced Research and Rapid Prototyping

Y2 - 28 September 2011 through 1 October 2011

ER -