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19962019
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Research Output 1996 2019

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2019
5 Citations (Scopus)

Additive manufacturing of functionally graded transition joints between ferritic and austenitic alloys

Zuback, J. S., Palmer, T. & Debroy, T., Jan 5 2019, In : Journal of Alloys and Compounds. 770, p. 995-1003 9 p.

Research output: Contribution to journalArticle

3D printers
Carbon
Dissimilar metals
Welds
Microstructure

Directed energy deposition of molybdenum

Johnson, J. L. & Palmer, T., Nov 1 2019, In : International Journal of Refractory Metals and Hard Materials. 84, 105029.

Research output: Contribution to journalArticle

Molybdenum
Substrates
Molybdenum deposits
3D printers
Lasers
1 Citation (Scopus)

Impact of chemical composition on precipitate morphology in an additively manufactured nickel base superalloy

Zuback, J. S., Moradifar, P., Khayat, Z., Alem, N. & Palmer, T., Aug 25 2019, In : Journal of Alloys and Compounds. 798, p. 446-457 12 p.

Research output: Contribution to journalArticle

Titanium
Nickel
Superalloys
Precipitates
Iron
1 Citation (Scopus)

Ni-Concentration Dependence of Directed Energy Deposited NiTi Alloy Microstructures

Bimber, B. A., Hamilton, R. F. & Palmer, T., Jun 15 2019, In : Shape Memory and Superelasticity. 5, 2, p. 182-187 6 p.

Research output: Contribution to journalArticle

Crystal microstructure
Precipitates
Melting
3D printers
Heating
3 Citations (Scopus)
Compliant mechanisms
Shape optimization
Shape memory effect
Elastic moduli
Geometry

Using In Situ Neutron Diffraction to Isolate Specific Features of Additively Manufactured Microstructures in 304L Stainless Steel and Identify Their Effects on Macroscopic Strength

Brown, D. W., Adams, D. P., Balogh, L., Carpenter, J. S., Clausen, B., Livescu, V., Martinez, R. M., Morrow, B. M., Palmer, T., Pokharel, R., Strantza, M. & Vogel, S. C., Jul 15 2019, In : Metallurgical and Materials Transactions A: Physical Metallurgy and Materials Science. 50, 7, p. 3399-3413 15 p.

Research output: Contribution to journalArticle

Stainless Steel
Neutron diffraction
neutron diffraction
stainless steels
Stainless steel
2018
6 Citations (Scopus)
Precipitates
Microstructure
Shape memory effect
Austenite
3D printers
6 Citations (Scopus)

Impact of composition on the heat treatment response of additively manufactured 17–4 PH grade stainless steel

Meredith, S. D., Zuback, J. S., Keist, J. S. & Palmer, T., Dec 19 2018, In : Materials Science and Engineering A. 738, p. 44-56 13 p.

Research output: Contribution to journalArticle

Stainless Steel
stainless steels
grade
heat treatment
Nitrogen
4 Citations (Scopus)
Nickel
Precipitates
Solid solutions
solid solutions
Iron
5 Citations (Scopus)

Microtexture in additively manufactured Ti-6Al-4V fabricated using directed energy deposition

Waryoba, D. R., Keist, J. S., Ranger, C. & Palmer, T., Sep 12 2018, In : Materials Science and Engineering A. 734, p. 149-163 15 p.

Research output: Contribution to journalArticle

Electron beams
electron beams
Texturing
Laser beams
energy
2017
34 Citations (Scopus)

Building blocks for a digital twin of additive manufacturing

Knapp, G. L., Mukherjee, T., Zuback, J. S., Wei, H. L., Palmer, T., De, A. & Debroy, T., Aug 15 2017, In : Acta Materialia. 135, p. 390-399 10 p.

Research output: Contribution to journalArticle

3D printers
Dendrites (metallography)
Solidification
Deposits
Cooling
5 Citations (Scopus)

Compressive and Tensile Stress–Strain Responses of Additively Manufactured (AM) 304L Stainless Steel at High Strain Rates

Song, B., Nishida, E., Sanborn, B., Maguire, M., Adams, D., Carroll, J., Wise, J., Reedlunn, B., Bishop, J. & Palmer, T., Sep 1 2017, In : Journal of Dynamic Behavior of Materials. 3, 3, p. 412-425 14 p.

Research output: Contribution to journalArticle

Stainless Steel
Strain rate
Stainless steel
Yield stress
Plastic flow
16 Citations (Scopus)
titanium alloys
Titanium alloys
Microhardness
microhardness
hardness
9 Citations (Scopus)

Fixturing effects in the thermal modeling of laser cladding

Gouge, M. F., Michaleris, P. & Palmer, T., Jan 1 2017, In : Journal of Manufacturing Science and Engineering, Transactions of the ASME. 139, 1, 011001.

Research output: Contribution to journalArticle

Laser cladding
Substrates
Surface roughness
Hot Temperature
Experiments
8 Citations (Scopus)
dwell
nickel alloys
Nickel alloys
titanium alloys
Titanium alloys
12 Citations (Scopus)

In Situ Neutron Diffraction Study of the Influence of Microstructure on the Mechanical Response of Additively Manufactured 304L Stainless Steel

Brown, D. W., Adams, D. P., Balogh, L., Carpenter, J. S., Clausen, B., King, G., Reedlunn, B., Palmer, T., Maguire, M. C. & Vogel, S. C., Dec 1 2017, In : Metallurgical and Materials Transactions A: Physical Metallurgy and Materials Science. 48, 12, p. 6055-6069 15 p.

Research output: Contribution to journalArticle

Stainless Steel
Neutron diffraction
neutron diffraction
stainless steels
Stainless steel
2016
26 Citations (Scopus)
phase transformations
Precipitates
precipitates
microstructure
Microstructure
129 Citations (Scopus)
3D printers
Austenitic stainless steel
Tensile properties
Microstructure
Processing
10 Citations (Scopus)
3D printers
Forced convection
Laser optics
Powder metals
Inert gases
5 Citations (Scopus)

Porosity in thick section alloy 690 welds - Experiments, modeling, mechanism, and remedy

Blecher, J. J., Palmer, T. & Debroy, T., Jan 1 2016, In : Welding Journal. 95, 1, p. 17s-26s

Research output: Contribution to journalArticle

Welds
Porosity
Welding
Lasers
Filler metals
40 Citations (Scopus)
Tensile strength
Geometry
Lasers
Substrates
Grain size and shape
32 Citations (Scopus)

Selection of powder or wire feedstock material for the laser cladding of Inconel® 625

Heigel, J. C., Gouge, M. F., Michaleris, P. & Palmer, T., May 1 2016, In : Journal of Materials Processing Technology. 231, p. 357-365 9 p.

Research output: Contribution to journalArticle

Laser Cladding
Laser cladding
Powder
Powders
Feedstocks
2015
268 Citations (Scopus)

Anisotropic tensile behavior of Ti-6Al-4V components fabricated with directed energy deposition additive manufacturing

Carroll, B. E., Palmer, T. & Beese, A. M., Apr 1 2015, In : Acta Materialia. 87, p. 309-320 12 p.

Research output: Contribution to journalArticle

3D printers
Ductility
Mechanical properties
Oxygen
Yield stress
106 Citations (Scopus)

Effect of inter-layer dwell time on distortion and residual stress in additive manufacturing of titanium and nickel alloys

Denlinger, E. R., Heigel, J. C., Michaleris, P. & Palmer, T., Jan 1 2015, In : Journal of Materials Processing Technology. 215, p. 123-131 9 p.

Research output: Contribution to journalArticle

3D printers
Nickel alloys
Titanium alloys
Residual stresses
Lasers
3 Citations (Scopus)

Employing microsecond pulses to form laser-fired contacts in photovoltaic devices

Raghavan, A. S., Palmer, T., Kragh-Buetow, K. C., Domask, A. C., Reutzel, E. W., Mohney, S. E. & Debroy, T., Aug 1 2015, In : Progress in Photovoltaics: Research and Applications. 23, 8, p. 1025-1036 12 p.

Research output: Contribution to journalArticle

Laser pulses
Aluminum
Lasers
pulses
lasers
12 Citations (Scopus)

Fusion zone microstructure and geometry in complete-joint-penetration laser-arc hybrid welding of low-alloy steel

Wei, H. L., Blecher, J. J., Palmer, T. & Debroy, T., Jan 1 2015, In : Welding Journal. 94, 4, p. 135s-144s

Research output: Contribution to journalArticle

High strength steel
Welding
Fusion reactions
Microstructure
Geometry
46 Citations (Scopus)

In situ monitoring and characterization of distortion during laser cladding of Inconel® 625

Heigel, J. C., Michaleris, P. & Palmer, T., Jan 1 2015, In : Journal of Materials Processing Technology. 220, p. 135-145 11 p.

Research output: Contribution to journalArticle

Laser Cladding
Laser cladding
Monitoring
Hatches
Bending (forming)
16 Citations (Scopus)
Laser beam welding
Electric arc welding
Welds
Defects
Lasers
46 Citations (Scopus)

Modeling forced convection in the thermal simulation of laser cladding processes

Gouge, M. F., Heigel, J. C., Michaleris, P. & Palmer, T., Jul 28 2015, In : International Journal of Advanced Manufacturing Technology. 79, 1-4, p. 307-320 14 p.

Research output: Contribution to journalArticle

Laser cladding
Forced convection
Hot Temperature
Convection
Natural convection
20 Citations (Scopus)
phase transformations
Phase transitions
shape memory alloys
Shape memory effect
Powders
2014
2 Citations (Scopus)

Passivation layer breakdown during laser-fired contact formation for photovoltaic devices

Raghavan, A., Palmer, T. & Debroy, T., Jan 1 2014, In : Applied Physics Letters. 105, 2, 024105.

Research output: Contribution to journalArticle

passivity
breakdown
lasers
pulse duration
low resistance
13 Citations (Scopus)

Real time monitoring of laser beam welding keyhole depth by laser interferometry

Blecher, J. J., Galbraith, C. M., Van Vlack, C., Palmer, T., Fraser, J. M., Webster, P. J. & Debroy, T., Jan 1 2014, In : Science and Technology of Welding and Joining. 19, 7, p. 560-564 5 p.

Research output: Contribution to journalArticle

Laser interferometry
laser interferometry
Laser beam welding
welding
Welds
34 Citations (Scopus)

Solidification map of a nickel-base alloy

Blecher, J. J., Palmer, T. & Debroy, T., Jan 1 2014, In : Metallurgical and Materials Transactions A: Physical Metallurgy and Materials Science. 45, 4, p. 2142-2151 10 p.

Research output: Contribution to journalArticle

Nickel
solidification
Solidification
nickel
Thermal gradients
49 Citations (Scopus)

Toward an integrated computational system for describing the additive manufacturing process for metallic materials

Martukanitz, R., Michaleris, P., Palmer, T., Debroy, T., Liu, Z., Otis, R., Heo, T. W. & Chen, L., Oct 1 2014, In : Additive Manufacturing. 1, p. 52-63 12 p.

Research output: Contribution to journalArticle

3D printers
2013
8 Citations (Scopus)

Capillary wicking of liquid lithium on laser textured surfaces for plasma facing components

Lin, T. F., Palmer, T., Meinert, Jr., K. C., Murray, N. R. & Majeski, R., Jan 1 2013, In : Journal of Nuclear Materials. 433, 1-3, p. 55-65 11 p.

Research output: Contribution to journalArticle

liquid lithium
Lithium
Plasmas
lithium
2-Propanol
40 Citations (Scopus)

Heat transfer and fluid flow in additive manufacturing

Raghavan, A., Wei, H. L., Palmer, T. & Debroy, T., Nov 1 2013, In : Journal of Laser Applications. 25, 5, 052006.

Research output: Contribution to journalArticle

3D printers
surface geometry
fluid flow
laser welding
Flow of fluids
2012
10 Citations (Scopus)

Evolution of laser-fired aluminum-silicon contact geometry in photovoltaic devices

Raghavan, A., Palmer, T. & Debroy, T., Jan 15 2012, In : Journal of Applied Physics. 111, 2, 024903.

Research output: Contribution to journalArticle

aluminum
silicon
geometry
lasers
solar cells
8 Citations (Scopus)

Identifying performance differences in transmissive and reflective laser optics using beam diagnostic tools

Blecher, J., Palmer, T., Kelly, S. M. & Martukanitz, R., Jul 1 2012, In : Welding Journal. 91, 7

Research output: Contribution to journalArticle

Laser optics
Optics
High power lasers
Fiber lasers
Welds
13 Citations (Scopus)

Laser-silicon interaction for selective emitter formation in photovoltaics. I. Numerical model and validation

Blecher, J. J., Palmer, T. & Debroy, T., Dec 1 2012, In : Journal of Applied Physics. 112, 11, 114906.

Research output: Contribution to journalArticle

emitters
travel
silicon
profiles
geometry
10 Citations (Scopus)

Laser-silicon interaction for selective emitter formation in photovoltaics. II. Model applications

Blecher, J. J., Palmer, T., Reutzel, E. W. & Debroy, T., Dec 1 2012, In : Journal of Applied Physics. 112, 11, 114907.

Research output: Contribution to journalArticle

emitters
travel
silicon
lasers
interactions
2011
3 Citations (Scopus)

Direct observation of austenitisation in 1005 C-Mn steel during continuous heating using in situ synchrotron X-ray diffraction

Palmer, T., Elmer, J. W., Mayr, P. & Specht, E. D., Jul 1 2011, In : Science and Technology of Welding and Joining. 16, 5, p. 377-384 8 p.

Research output: Contribution to journalArticle

Steel
Synchrotrons
synchrotrons
steels
Heating
2010
16 Citations (Scopus)

Formation of delta ferrite in 9 Wt Pct Cr steel investigated by in-situ x-ray diffraction using synchrotron radiation

Mayr, P., Palmer, T., Elmer, J. W., Specht, E. D. & Allen, S. M., Oct 1 2010, In : Metallurgical and Materials Transactions A: Physical Metallurgy and Materials Science. 41, 10, p. 2462-2465 4 p.

Research output: Contribution to journalArticle

Steel
Synchrotron radiation
carbides
Ferrite
ferrites
2009
59 Citations (Scopus)

Heat transfer and fluid flow during electron beam welding of 304L stainless steel alloy

Rai, R., Palmer, T., Elmer, J. W. & Debroy, T., Mar 1 2009, In : Welding Journal (Miami, Fla). 88, 3

Research output: Contribution to journalArticle

Electron beam welding
Stainless Steel
Alloy steel
Flow of fluids
Welds
155 Citations (Scopus)

Problems and issues in laser-arc hybrid welding

Ribic, B., Palmer, T. & Debroy, T., Jul 1 2009, In : International Materials Reviews. 54, 4, p. 223-244 22 p.

Research output: Contribution to journalArticle

Welding
Lasers
Laser beam welding
Electric arc welding
Welds
2008
10 Citations (Scopus)

Direct observation of phase transformations in the simulated heat-affected zone of a 9Cr martensitic steel

Mayr, P., Palmer, T., Elmer, J. W. & Specht, E. D., Apr 1 2008, In : Zeitschrift fuer Metallkunde/Materials Research and Advanced Techniques. 99, 4, p. 381-386 6 p.

Research output: Contribution to journalArticle

Martensitic steel
heat affected zone
Heat affected zone
phase transformations
Phase transitions
3 Citations (Scopus)

Improving process control in electron beam welding using the enhanced modified faraday cup

Palmer, T. & Elmer, J. W., Aug 1 2008, In : Journal of Manufacturing Science and Engineering, Transactions of the ASME. 130, 4, p. 410081-4100815 3690735 p.

Research output: Contribution to journalArticle

Electron beam welding
Process control
Welds
Full width at half maximum
Quality control
2007
10 Citations (Scopus)
Electron beams
Welds
electron beams
Optics
radiant flux density
84 Citations (Scopus)
Stainless Steel
Synchrotrons
stainless steels
synchrotrons
Stainless steel
183 Citations (Scopus)

Heat transfer and fluid flow during keyhole mode laser welding of tantalum, Ti-6Al-4V, 304L stainless steel and vanadium

Rai, R., Elmer, J. W., Palmer, T. & Debroy, T., Sep 21 2007, In : Journal of Physics D: Applied Physics. 40, 18, p. 5753-5766 14 p., 037.

Research output: Contribution to journalArticle

Tantalum
Vanadium
laser welding
Laser beam welding
Stainless Steel
5 Citations (Scopus)

In situ observation of phase transformations and their effects in 9-12%Cr steels during welding

Mayr, P., Palmer, T., Elmer, J. W. & Cerjak, H., 2007, In : Advanced Materials Research. 15-17, p. 1014-1019 6 p.

Research output: Contribution to journalArticle

Welding
Weldability
Phase transitions
Microstructural evolution
Heat affected zone