• 2591 Citations
  • 27 h-Index
19962019
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Research Output 1996 2019

2013

Role of processing parameters on morphology, resistance and composition of laser fired contacts

Raghavan, A., Palmer, T., Domask, A., Mohney, S. E., Reutzel, E. W. & Debroy, T., Nov 4 2013, Laser Material Processing for Solar Energy Devices II. 882606. (Proceedings of SPIE - The International Society for Optical Engineering; vol. 8826).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Contact
Laser
Lasers
Processing
Chemical analysis
2012

Challenges in the design of portable laser repair systems

Nissly, A., Reutzel, E. & Palmer, T., Dec 1 2012, p. 502-508. 7 p.

Research output: Contribution to conferencePaper

Repair
Lasers
Optics
Robotics
Processing
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. A., Kelly, S. M. & Martukanitz, R. P., Jul 1 2012, In : Welding Journal. 91, 7, p. 204S-214S

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
1 Citation (Scopus)

Modeling of contact geometry and dopant profile during laser - Silicon interaction

Raghavan, A., Blecher, J. J., Palmer, T., Reutzel, E. W. & Debroy, T., Dec 1 2012, Laser Material Processing for Solar Energy. Vol. 8473. 847304

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Contact Geometry
Silicon
Doping (additives)
Laser
Geometry
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. A., 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
5 Citations (Scopus)

Arc-laser interactions and heat transfer and fluid flow in hybrid welding

Ribic, B. D., Rai, R., Palmer, T. & Debroy, T., Dec 1 2009, Trends in Welding Research - Proceedings of the 8th International Conference. p. 313-320 8 p. (ASM Proceedings of the International Conference: Trends in Welding Research).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Flow of fluids
Welding
Heat transfer
Welds
Lasers
61 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
156 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
21 Citations (Scopus)

Time resolved X-ray diffraction observations of phase transformations in transient arc welds

Elmer, J. W., Palmer, T. A., Zhang, W. & Debroy, T., May 1 2008, In : Science and Technology of Welding and Joining. 13, 3, p. 265-277 13 p.

Research output: Contribution to journalReview article

phase transformations
Welds
arcs
Phase transitions
welding
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. A., Elmer, J. W. & Cerjak, H., Jan 1 2007, In : Advanced Materials Research. 15-17, p. 1014-1019 6 p.

Research output: Contribution to journalConference article

Welding
Weldability
Phase transitions
Microstructural evolution
Heat affected zone
38 Citations (Scopus)

In situ observations of sigma phase dissolution in 2205 duplex stainless steel using synchrotron X-ray diffraction

Elmer, J. W., Palmer, T. & Specht, E. D., Jun 25 2007, In : Materials Science and Engineering A. 459, 1-2, p. 151-155 5 p.

Research output: Contribution to journalArticle

Stainless Steel
Synchrotrons
stainless steels
dissolving
synchrotrons
30 Citations (Scopus)

Phase-field modelling and synchrotron validation of phase transformations in martensitic dual-phase steel

Thiessen, R. G., Sietsma, J., Palmer, T., Elmer, J. W. & Richardson, I. M., Jan 1 2007, In : Acta Materialia. 55, 2, p. 601-614 14 p.

Research output: Contribution to journalArticle

Steel
Synchrotrons
Austenite
Phase transitions
Cooling
8 Citations (Scopus)

Transferring electron beam welding parameters using the enhanced modified faraday cup

Palmer, T., Elmer, J. W., Nicklas, K. D. & Mustaleski, T., Dec 1 2007, In : Welding Journal (Miami, Fla). 86, 12

Research output: Contribution to journalArticle

Electron beam welding
Welds
Welding machines
Stainless Steel
Electron beams
2006
15 Citations (Scopus)

Development of an explosive welding process for producing high-strength welds between niobium and 6061-T651 aluminum

Palmer, T., Elmer, J. W., Brasher, D., Butler, D. & Riddle, R., Nov 1 2006, In : Welding Journal (Miami, Fla). 85, 11

Research output: Contribution to journalArticle

Niobium
Explosive welding
Aluminum
Welds
Impact strength
16 Citations (Scopus)

Direct observations of rapid diffusion of Cu in Au thin films using in situ x-ray diffraction

Elmer, J. W., Palmer, T. & Specht, E. D., Jul 1 2006, In : Journal of Vacuum Science and Technology A: Vacuum, Surfaces and Films. 24, 4, p. 978-987 10 p., 102604JVA.

Research output: Contribution to journalArticle

x ray diffraction
Diffraction
X rays
Thin films
thin films
1 Citation (Scopus)

In-situ observations of phase transformations during welding of 1045 steel using spatially resolved and time resolved x-ray diffraction

Elmer, J. W., Palmer, T. & Debroy, T., Dec 8 2006, Modeling of Casting, Welding and Advanced Solidification Processes - XI. p. 41-51 11 p. (Modeling of Casting, Welding and Advanced Solidification Processes - XI; vol. 1).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Welding
Diffraction
Phase transitions
X rays
Steel
26 Citations (Scopus)
Steel
Electric arc welding
Heat affected zone
Welds
Cooling
2005
3 Citations (Scopus)

Advanced techniques for in-situ monitoring of phase transformations during welding using synchrotron-based x-ray diffraction

Elmer, J. W., Palmer, T., Zhang, W. & Debroy, T., Dec 1 2005, Trends in Welding Research - Proceedings of the 7th International Conference. p. 901-910 10 p. (ASM Proceedings of the International Conference: Trends in Welding Research; vol. 2005).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Synchrotrons
Welding
Diffraction
Phase transitions
X rays

ASM Conference Proceedings: Joining of Advanced and Specialty Materials: Preface

Lienert, T. J., Acoff, V., Palmer, T., Hochanadel, P. W., Katayama, S., Indacochea, J. E., Lienert, T. J., Weil, K. S., Zhou, Y. N., Smith, R. W. & Powers, M., Dec 1 2005, In : ASM Conference Proceedings: Joining of Advanced and Specialty Materials.

Research output: Contribution to journalEditorial

Joining

Direct observations of sigma phase growth and dissolution in 2205 duplex stainless steel

Palmer, T., Elmer, J. W., Babu, S. S. & Specht, E. D., Dec 1 2005, Trends in Welding Research - Proceedings of the 7th International Conference. p. 945-950 6 p. (ASM Proceedings of the International Conference: Trends in Welding Research; vol. 2005).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Stainless Steel
Volume fraction
Dissolution
Stainless steel
Heat treatment
17 Citations (Scopus)

Direct observations of the formation and growth of austenite from pearlite and allotriomorphic ferrite in a C-Mn steel arc weld

Palmer, T. & Elmer, J. W., Sep 1 2005, In : Scripta Materialia. 53, 5, p. 535-540 6 p.

Research output: Contribution to journalArticle

pearlite
Pearlite
Steel
austenite
Austenite
11 Citations (Scopus)
heat affected zone
Steel
Heat affected zone
austenite
Austenite

Ferrite formation in a duplex stainless steel during controlled heating: X-ray diffraction and modeling using para-equilibrium diffusion kinetics

Zhang, W., Palmer, T., Elmer, J. W. & Debroy, T., Dec 1 2005, Trends in Welding Research - Proceedings of the 7th International Conference. Vol. 2005. p. 939-944 6 p.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Stainless Steel
Ferrite
Stainless steel
Heating
X ray diffraction
120 Citations (Scopus)

In situ observations of lattice expansion and transformation rates of α and β phases in Ti-6Al-4V

Elmer, J. W., Palmer, T., Babu, S. S. & Specht, E. D., Jan 25 2005, In : Materials Science and Engineering A. 391, 1-2, p. 104-113 10 p.

Research output: Contribution to journalArticle

Lattice constants
lattice parameters
heating
expansion
Heating
23 Citations (Scopus)

Low temperature relaxation of residual stress in Ti-6Al-4V

Elmer, J. W., Palmer, T., Babu, S. S. & Specht, E. D., May 1 2005, In : Scripta Materialia. 52, 10, p. 1051-1056 6 p.

Research output: Contribution to journalArticle

contraction
residual stress
Residual stresses
expansion
Synchrotrons
7 Citations (Scopus)

Measurement of phase transformation kinetics during repeated thermal cycling of TI-6AL-4V using time-resolved X-ray diffraction

Babu, S. S., Kelly, S. M., Specht, E. D., Palmer, T. & Elmer, J. W., 2005, Proceedings of an International Conference on Solid-Solid Phase Transformations in Inorganic Materials 2005. Howe, J. M., Laughlin, D. E., Lee, J. K., Dahmen, U. & Soffa, W. A. (eds.). Vol. 2. p. 503-508 6 p.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Thermal cycling
Phase transitions
Heating
X ray diffraction
Kinetics
33 Citations (Scopus)

Modeling of ferrite formation in a duplex stainless steel weld considering non-uniform starting microstructure

Zhang, W., Debroy, T., Palmer, T. & Elmer, J. W., Sep 1 2005, In : Acta Materialia. 53, 16, p. 4441-4453 13 p.

Research output: Contribution to journalArticle

Stainless Steel
Ferrite
Welds
Stainless steel
Microstructure

Phase selection phenomena during low-alloy steel weld solidification

Babu, S. S., David, S. A., Vitek, J. M., Elmer, J. W., Palmer, T. & Quintana, M. A., Dec 1 2005, Trends in Welding Research - Proceedings of the 7th International Conference. p. 917-922 6 p. (ASM Proceedings of the International Conference: Trends in Welding Research; vol. 2005).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

High strength steel
Solidification
Welds
Austenite
Ferrite
2004
41 Citations (Scopus)
Bainite
Steel
Electric arc welding
Martensite
Austenite
1 Citation (Scopus)

In-situ monitoring of phase transformations during welding of steels using synchrotron-based x-ray diffraction techniques

Elmer, J. W. & Palmer, T., Dec 1 2004, Applications of X-Rays in Mechanical Engineering 2004. p. 39-48 10 p. IMECE2004-62448. (Applications of X-Rays in Mechanical Engineering 2004).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Synchrotrons
Welding
Diffraction
Phase transitions
X rays
2 Citations (Scopus)

Nonequilibrium phase selection during weld solidification of FE-C-MN-AL steels

Babu, S. S., Vitek, J. M., Elmer, J. W., Palmer, T. & David, S. A., Jul 14 2004, Solidification Processes and Microstructures: A Symposium in Honor of Wilfried Kurz. Rappaz, M., Beckermann, C. & Trivedi, R. (eds.). p. 339-344 6 p. (Solidification Processes and Microstructures: A Symposium in Honor of Wilfried Kurz).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Solidification
Welds
Steel
Synchrotron radiation
Austenite
56 Citations (Scopus)
spot welds
heat affected zone
Stainless Steel
Heat affected zone
austenite
143 Citations (Scopus)

Phase transformation dynamics during welding of Ti-6Al-4V

Elmer, J. W., Palmer, T., Babu, S. S., Zhang, W. & Debroy, T., Jun 15 2004, In : Journal of Applied Physics. 95, 12, p. 8327-8339 13 p.

Research output: Contribution to journalArticle

welding
phase transformations
gas tungsten arc welding
heating
heat affected zone
2003
2 Citations (Scopus)

Characterization and prediction of austenite formation and decomposition in steel welds

Babu, S. S., Vitek, J. M., David, S. A., Palmer, T. & Elmer, J. W., 2003, A Symposium on the Thermodynamics, kinetics, Characterizaion and Modeling of: Austenite Formation and Decomposition. Damm, E. B. & Merwin, M. J. (eds.). p. 343-352 10 p.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Steel
Austenite
Welds
Decomposition
Heat affected zone
1 Citation (Scopus)

Characterization of low temperature ferrite/austenite transformations in the heat affected zone of 2205 duplex stainless steel arc welds

Palmer, T., Elmer, J. W., Babu, S. S. & Vitek, J. M., Dec 1 2003, A Symposium on the Thermodynamics, kinetics, Characterizaion and Modeling of: Austenite Formation and Decomposition. Damm, E. B. & Merwin, M. J. (eds.). p. 177-192 16 p. (Materials Science and Technology 2003 Meeting).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Stainless Steel
Heat affected zone
Austenite
Ferrite
Welds
1 Citation (Scopus)
Steel
Heat affected zone
Welds
Phase transitions
Kinetics
41 Citations (Scopus)

In situ observations of phase transitions in Ti-6Al-4V alloy welds using spatially resolved x-ray diffraction

Elmer, J. W., Palmer, T. A. & Wong, J., Feb 15 2003, In : Journal of Applied Physics. 93, 4, p. 1941-1947 7 p.

Research output: Contribution to journalArticle

x ray diffraction
thermodynamic equilibrium
heat transmission
kinetics
98 Citations (Scopus)

Kinetic modeling of phase transformations occurring in the HAZ of C-Mn steel welds based on direct observations

Elmer, J. W., Palmer, T., Zhang, W., Wood, B. & Debroy, T., Jul 16 2003, In : Acta Materialia. 51, 12, p. 3333-3349 17 p.

Research output: Contribution to journalArticle

Steel
Heat affected zone
Welds
Phase transitions
Kinetics
2002
7 Citations (Scopus)

Influence of thermal aging on the mechanical corrosion properties of GTAW welds of alloy N06022

Edgecumbe, T. S., Rebak, R. B., Palmer, T. & Crook, P., Jan 1 2002, In : Materials Research Society Symposium - Proceedings. 713, p. 45-52 8 p.

Research output: Contribution to journalConference article

Thermal aging
corrosion
Welds
Aging of materials
Corrosion
51 Citations (Scopus)
Stainless Steel
austenite
Synchrotron radiation
Austenite
Ferrite
4 Citations (Scopus)

Investigation of the Kinetics of the Ferrite/Austenite Phase Transformation in the HAZ of a 2205 Duplex Stainless Steel Weldment

Palmer, T., Elmer, J. W., Wong, J., Babu, S. S. & Vitek, J. M., Dec 1 2002, p. 23-28. 6 p.

Research output: Contribution to conferencePaper

Stainless Steel
Austenite
Ferrite
Stainless steel
Phase transitions