Our Publications

We have constructed this page to have some of our research highlights at the top (“Selected Articles”), followed by our full publication record below, along with contributions to books and our patents.

Selected Articles of the Last Decade, and Why we Selected Them
  1. Collins, P. C., S. Koduri, V. Dixit, and H. L. Fraser. “Understanding the Interdependencies Between Composition, Microstructure, and Continuum Variables and Their Influence on the Fracture Toughness of α/β-Processed Ti-6Al-4V.” Metallurgical and Materials Transactions A (2017): 1-16. https://doi.org/10.1007/s11661-017-4443-9 
    • This paper uses machine learning to help us learn new science about the nature of fracture in titanium alloys, a challenging problem and one of great relevance to users of titanium. We were able to identify a key microstructural feature (a particular and rare type of interface) that was responsible for microcracks. The paper won both the Henry Marion Howe Medal from ASM and the Champion H. Mathewson Award from AIME/TMS. We are deeply honored to have our work recognized in this manner. 
  2. Brian Hayes, Brian Martin, Brian Welk, Sam Kuhr, Thomas Ales, David Brice, Iman Ghamarian, Andrew Baker, Christina V Haden, Gary Harlow, Hamish L. Fraser, Peter C Collins.  Predicting Tensile Properties of Ti-6Al-4V Produced Via Directed Energy Deposition. Acta Materialia. Available at: http://dx.doi.org/10.1016/j.actamat.2017.05.025
    • This paper extends a constitutive relationship for the prediction of yield strength in Ti-6Al-4V to additively manufactured Ti-6Al-4V without many modifications, while also demonstrating the strong influence of dislocation density and texture on the mechanical behavior of Ti-6Al-4V. 
  3. Brian Martin, Peyman Samimi, Peter C Collins, “Engineered, spatially varying isothermal holds: Enabling Combinatorial Studies of Temperature Effects, as Applied to Metastable Titanium Alloy β-21S”, Metallogr. Microstruct. Anal. (2017). Available at: http://dx.doi.org/10.1007/s13632-017-0361-x
    • This paper is a fun one that establishes a new experimental technique. While many of our earlier papers used a combinatorial approach to probe the influence of composition on the microstructure or properties of a material, this paper demonstrated it was possible to engineer, affect, and control a thermal gradient of a few hundred decrees Celsius over a relatively short distance. It opened up a students thesis to conduct the first bicombinatorial experiments where composition was varied along one axis, an isothermal hold along an orthogonal axis, and a large fraction of a phase diagram contained within a single specimen.  
  4. Collins, P. C., Brice, D. A., Samimi, P., Ghamarian, I., & Fraser, H. L. (2016). Microstructural Control of Additively Manufactured Metallic Materials. Annual Review of Materials Research, 46, pp 63-91. Available at: http://dx.doi.org/10.1146/annurev-matsci-070115-031816
    • This paper permitted us to rationalize the effects of processing on composition and microstructure during additive manufacturing. Two of the takeaways led us to better understand how to control texture in additively manufactured metallic materials, and how processing and environment affects composition by invoking work from Langmuir ~100 years ago.
  5. Liu, Y., Samimi, P., Ghamarian, I., Brice, D.A., Huber, D, Wang, Z., Dixit, V, Koduri, S., Huber, D, Fraser, HL, and Collins, PC,  “Discovery via Integration of Experimentation and Modeling: Three Examples for Titanium Alloys”, JOM, 67(1), January 2015, pp 164-178, Available at: http://dx.doi.org/10.1007/s11837-014-1197-3
    • This paper presented some of the earliest ideas for a new type of hybrid machine learning (artificial neural networks – genetic algorithms), but it was the suprise selection of some of our earliest work on mapping dislocation densities that was selected for Cover Art for Oct. 2014 JOM.
  6. C.V. Haden, P.C. Collins, D.G. Harlow, “Yield Strength Prediction of Titanium Alloys” JOM: Volume 67, Issue 6 (2015), Page 1357-1361. Available at: http://dx.doi.org/10.1007/s11837-015-1436-2
    • This paper is a prime example that sometimes some ideas run outside the normal research areas (hence, may receive fewer citations). Here, led by our intrepid collaborators at Lehigh University, we took a model for yield strength of Ti-6Al-4V and applied it within a statistical framework, we were able to tune the model in statistical space, and generate “design allowable” like curves (probability distribution functions) that you could achieve a given property for a given process.  But, not all materials scientists gravitate towards statistical analysis. 
  7. Ghamarian, I, Samimi, P, Dixit, V, and Collins, PC, “A constitutive equation relating composition and microstructure to properties in Ti-6-4 – as derived using a novel integrated computational approach”, Met Trans A, 46(11), 2015, pp 5021-5037, Available at: http://dx.doi.org/10.1007/s11661-015-3072-4
    • This paper presented the earliest ideas for a new type of hybrid machine learning (artificial neural networks – genetic algorithms), and resulted in the first paper to have a constitutive form to predict strength in Ti-6Al-4V, as well as an assessment of the role of each strengthening mechanism. This still provides the basis for much of our current work.
  8. M.D. Harris, W.J. Grogg, A. Akoma, B.J. Hayes, R.F. Reidy, E.F. Imhoff, P.C.Collins, “Revisiting (some of) the Lasting Impacts of the Liberty Ships Via A Metallurgical Analysis of Rivets from the SS John W. Brown”, JOM: Volume 67, Issue 12 (2015), Page 2965-2975. Available at: http://dx.doi.org/10.1007/s11837-015-1668-1
    • This paper was a fun and serendipitous paper. A friend of my extended family had been a newspaper reporter for the Baltimore Sun, and had written a few books on the Liberty Ships based upon his personal experience in helping to document and restore one of the few remaining ones. He also happened to have both original rivits and modern restoration rivists. From these, we had some very talented undergraduate students conduct an analysis – both metallurgical and historical – of these great ships. We could tell the stories of terrific scientists, such as the incomparable Constance Tipper.
  9. Samimi, P, Liu, Y, Ghamarian, I, Song, J, and Collins, PC, “New observations of a nanoscaled pseudomorphic bcc Co phase in bulk Co-Al-(W,Ta) superalloys”, Acta Materialia 69 (2014): 92-104. Available at: http://dx.doi.org/10.1016/j.actamat.2014.01.056
    • Sometimes what you get is not at all what you expected. Here, we were aiming to demonstrate that combinatorial approaches could be used to study interesting Co-based superalloys.  While we did demonstrate that, it was the surprising of bcc (body centered cubic) cobalt that formed, patterned on the B2 intermetallic phase that formed the heart of the paper.
  10. Iman Ghamarian, Yue Liu, Peyman Samimi, Peter C. Collins, “Development and application of a novel precession electron diffraction technique to quantify deformation structures in a highly deformed material – ultrafine grained titanium”, Acta Materialia  79 (October 2014), pp. 203-215, Available at: http://dx.doi.org/10.1016/j.actamat.2014.06.063.
    • This was our first paper on mapping dislocation densities using precession electron diffraction with a resolution of ~2nm. We still think there is very interesting work in this space, but in certain ways, it demonstrated an exciting and new experimental techniques.
  11. Samimi, P., Liu, Y., Ghamarian, I., and Collins, PC, “A novel tool to assess the influence of alloy composition on the oxidation behavior and concurrent oxygen-induced phase transformations for binary Ti–xMo alloys at 650° C” Corrosion Science 89 (2014): 295-306. Available at: http://dx.doi.org/10.1016/j.corsci.2014.09.010
    • This was another fun methods development paper. We exploited our earlier work of combinatorial studies to focus on the effect of alloy composition on the oxidation mechanisms. By grading the composition and exposing a single specimen to a particular atmosphere, we could hold one variable fixed (atmosphere) and study the effects of alloy composition on growth rates, oxide stabilities, and more. This led to companion studies and publications in the Ti-xW, Ti-xCr, and Ti-xAl system, as well as studies of industrially used alloys
Full Publication Record

(2021)

  1. Quintana, Maria J., Matthew J. Kenney, Priyanka Agrawal, and Peter C. Collins. “Correction to: Texture Analysis of Additively Manufactured Ti-6Al-4V Deposited Using Different Scanning Strategies.” Metallurgical and Materials Transactions A 52, no. 1 (2021): 438-438.
  2. J. Kenney, K. O’Donnell, M.J. Quintana, P.C. Collins, “Spherical pores as ‘microstructural informants’: understanding compositional, thermal, and mechanical gyrations in additively manufactured Ti-6Al-4V”, Accepted and in press, Scripta Materialia (available at: https://doi.org/10.1016/j.scriptamat.2021.113827)

 

(2020)

  1. Mendoza, Michael Y., Maria J. Quintana, and Peter C. Collins. “Microstructure Characterization and Mechanical Properties in Individual Zones of Linear Friction Welded Ti-6Al-4V Alloy.” Metallurgical and Materials Transactions A 51, no. 12 (2020): 6294-6306.
  2. Quintana, Maria J., Matthew J. Kenney, Priyanka Agrawal, and Peter C. Collins. “Texture Analysis of Additively Manufactured Ti-6Al-4V Deposited Using Different Scanning Strategies.” Metallurgical and Materials Transactions A 51, no. 12 (2020): 6574-6583.
  3. DeMott, Ryan, Peter Collins, Charlie Kong, Xiaozhou Liao, Simon Ringer, and Sophie Primig. “3D electron backscatter diffraction study of α lath morphology in additively manufactured Ti-6Al-4V.” Ultramicroscopy 218 (2020): 113073.
  4. Gong, Xinyi, Yuksel C. Yabansu, Peter C. Collins, and Surya R. Kalidindi. “Evaluation of Ti–Mn Alloys for Additive Manufacturing Using High-Throughput Experimental Assays and Gaussian Process Regression.” Materials 13, no. 20 (2020): 4641.

 

(2019)

  1. Mendoza, Michael Y., Peyman Samimi, David A. Brice, Iman Ghamarian, Matt Rolchigo, Richard LeSar, and Peter C. Collins. “On the role of composition and processing parameters on the microstructure evolution of Ti-xMo alloys.” BMC Chemistry 13, no. 1 (2019): 5.
  2. Koester, Lucas W., Leonard J. Bond, Hossein Taheri, and Peter C. Collins. “Nondestructive evaluation of additively manufactured metallic parts: In situ and post deposition.” In Additive Manufacturing for the Aerospace Industry, pp. 401-417. Elsevier, 2019.
  3. Martin, Brain W., Thomas K. Ales, Matthew R. Rolchigo, and Peter C. Collins. “Developing and applying ICME+ modeling tools to predict performance of additively manufactured aerospace parts.” In Additive Manufacturing for the Aerospace Industry, pp. 375-400. Elsevier, 2019.

(2018)

  1. Collins, P. C., S. Koduri, V. Dixit, and H. L. Fraser. “Understanding the Interdependencies Between Composition, Microstructure, and Continuum Variables and Their Influence on the Fracture Toughness of α/β-Processed Ti-6Al-4V.” Metallurgical and Materials Transactions A(2017): 1-16.
  2. Seifi, M., I. Ghamarian, P. Samimi, P. C. Collins, N. J. H. Holroyd, and J. J. Lewandowski. “Sensitization and remediation effects on environmentally assisted cracking of Al-Mg naval alloys.” Corrosion Science (2018).
  3. Esfahani, S. Ehsan, Iman Ghamarian, Valery I. Levitas, and Peter C. Collins. “Microscale phase field modeling of the martensitic transformation during cyclic loading of NiTi single crystal.” International Journal of Solids and Structures 146 (2018): 80-96.
  4. Koester, Lucas W., Hossein Taheri, Timothy A. Bigelow, Peter C. Collins, and Leonard J. Bond. “Nondestructive testing for metal parts fabricated using powder-based additive manufacturing.” Materials Evaluation 76, no. 4 (2018): 514-524.

(2017)

  1. Ghamarian, P. Samimi, A. Telang, V.K. Vasudevan, P.C. Collins. Characterization of the near-surface nano-crystalline microstructure of ultrasonically treated Ti-6Al-4V using ASTAR™/precession electron diffraction technique. Materials Science and Engineering A, February 2017, 688, pp 524-531. Available at: http://dx.doi.org/10.1016/j.msea.2017.02.029
  2. Ghamarian, P. Samimi, G. Rohrer, P.Collins, Determination of the five parameter grain boundary character distribution of nanocrystalline alpha-zirconium thin films using transmission electron microscopy. Acta Materialia, May 2017, 130, pp. 164-176. Available at: http://dx.doi.org/10.1016/j.actamat.2017.03.041
  3. Baker, P. C. Collins, J. C. Williams. “New Nomenclatures for Heat-Treatments of Additively Manufactured Titanium Alloys”.  JOM. Available on-line April 28, 2017. Available at: http://dx.doi.org/10.1007/s11837-017-2358-y
  4. Y. Mendoza, Peyman. Samimi, David. A. Brice, Brian Martin, Matt Rolchigo, Richard LeSar, Peter. C. Collins, “Microstructures and grain refinement of additive manufactured Ti-xW alloys” Metallurgical and Materials Transactions A, 48(7), 3594-3605. Available at: http://dx.doi.org/10.1007/s11661-017-4117-7
  5. Matt Rolchigo, Michael Mendoza, Londono, Peyman Samimi, David Brice, Brian Martin, Peter Collins, and Richard LeSar , “Modeling of solidification in Ti-W alloys under additive manufacturing conditions”, Metallurgical and Materials Transactions A, 48(7), 3606-3622. Available at: http://dx.doi.org/10.1007/s11661-017-4120-z
  6. Brian Hayes, Brian Martin, Brian Welk, Sam Kuhr, Thomas Ales, David Brice, Iman Ghamarian, Andrew Baker, Christina V Haden, Gary Harlow, Hamish L. Fraser, Peter C Collins.  Predicting Tensile Properties of Ti-6Al-4V Produced Via Directed Energy Deposition. Acta Materialia. Available at: http://dx.doi.org/10.1016/j.actamat.2017.05.025
  7. Fortier, Aleksandra, Yue Liu, Iman Ghamarian, Peter C. Collins, and Eric Chason. “Investigation of Tin (Sn) Film Using an Aerosol Jet Additive Manufacturing Deposition Process.” Journal of Electronic Materials: 1-9. Available at: http://dx.doi.org/10.1007/s11664-017-5524-7
  8. Brice, D. A., P. Samimi, I. Ghamarian, Y. Liu, M. Y. Mendoza, M. J. Kenney, R. F. Reidy, M. Garcia-Avila, and P. C. Collins. “On the eutectoid transformation behavior of the Ti-Zn system and its metastable phases.” Journal of Alloys and Compounds(2017). Available at: https://doi.org/10.1016/j.jallcom.2017.05.103
  9. Taheri, M.R.M. Shoaib, L. Koester, T.A. Bigelow, P.C. Collins, L.J. Bond, “Powder based additive manufacturing – A review of types of defects, generation mechanisms, detection, property evaluation and metrology”, International Journal of Additive and Subtractive Materials Manufacturing, August 2016 (ACCEPTED – IN PRESS)
  10. Brian Martin, Peyman Samimi, Peter C Collins, “Engineered, spatially varying isothermal holds: Enabling Combinatorial Studies of Temperature Effects, as Applied to Metastable Titanium Alloy β-21S”, Metallogr. Microstruct. Anal. (2017). Available at: http://dx.doi.org/10.1007/s13632-017-0361-x
  11. Mantri, SA, Yannetta, CJ, Mikler, CV, Collins, PC, and Banerjee, R. “The effect of Boron on the grain size and texture in additively manufactured β-Ti alloys”. Journal of materials science. Available at: http:// 10.1007/s10853-017-1371-4
  12. Gong, S. Mohan, M. Mendoza, A. Gray, P. Collins, S. Kalidindi, “High throughput assays for additively manufactured Ti-Ni alloys based on compositional gradients and spherical indentation”, Integr Mater Manuf Innov.Aug. 2017,  Available at: http://dx.doi.org/10.1007/s40192-017-0100-9 or http://rdcu.be/vjGC
  13. Taheri, Hossein, Mohammad Rashid Bin Mohammad Shoaib, Lucas W. Koester, Timothy A. Bigelow, Peter C. Collins, and Leonard J. Bond. “Powder-based additive manufacturing-a review of types of defects, generation mechanisms, detection, property evaluation and metrology.” International Journal of Additive and Subtractive Materials Manufacturing1, no. 2 (2017): 172-209.

(2016)

  1. Ghamarian, I., Samimi, P., Liu, Y., Poorganji, B., Vasudevan, V. K., & Collins, P. C. (2015). “Characterizing the Nano-structure and defect structure of Nano-scaled non-ferrous structural alloys.” Materials Characterization Available at: http://dx.doi.org/10.1016/j.matchar.2015.10.002
  2. Samimi, P, Brice, D., Ghamarian, I, Liu, Y, and Collins, PC, “Systematic Assessment of the influence Mo Concentration on the Oxygen Ingress in Ti-Mo System During High Temperature Oxidation”, Oxidation of Metals, 85(3), pp 357-368. Available at: http://dx.doi.org/10.1007/s11085-015-9600-1 
  3. Samimi, P, Brice, DA, Banerjee, R, Kaufman, MJ, and Collins, PC, “On the influence of alloy composition on the oxidation performance and oxygen-induced phase transformations in Ti–(0–8) wt% Al alloys” Journal of Materials Science: 1-9. Available at: http://dx.doi.org/10.1007/s10853-015-9681-x
  4. Iman Ghamarian, Peyman Samimi, Yue Liu, Brian Hayes+, David Brice, Brian Welk, Hamish L Fraser, and Peter C. Collins, “Developing a phenomenological equation to predict yield strength for β-processed Ti-6Al-4V” – Materials Science and Engineering A, Vol 660, April 2016, pp 172-180. Available at: http://dx.doi.org/10:1016/j.msea.2016.02.052
  5. Collins, P. C., Brice, D. A., Samimi, P., Ghamarian, I., & Fraser, H. L. (2016). Microstructural Control of Additively Manufactured Metallic Materials. Annual Review of Materials Research, 46, pp 63-91. Available at: http://dx.doi.org/10.1146/annurev-matsci-070115-031816
  6. Samimi, P., & Collins, P. C. (2016). “Oxidation Behavior of Binary Ti-xW (0≤ x≤ 30, wt%) Alloys at 650° C As a Function of W Concentration” Corrosion Science, 111, pp 531-540. Available at: http://dx.doi.org/10.1016/j.corsci.2016.05.038
  7. David A Brice, Peyman Samimi, Iman Ghamarian, Yue Liu, Randa M Franzen, Richard F Reidy, James D Cotton, Michael J Kaufman, and Peter C Collins, “Oxidation behavior and microstructural evolution of Ti-6Al-4V and Ti-6Al-4V-1B sheet”, Corrosion Science. Available at: http://dx.doi.org/10.1016/j.corsci.2016.07.032
  8. Collins, PC, Clark, A, Field, R, Midson, S, Kaufman, M.  “CANFSA: Exploring the physical metallurgy of non-ferrous alloys”. Advanced Materials and Processing. October 2016. Pp 30-32.
  9. Sameehan S. Joshi, Iman Ghamarian, Peyman Samimi, Shravana Katakam, Peter C. Collins, and Narendra B. Dahotre, Crystallisation behaviour during tensile loading of laser treated Fe–Si–B metallic glass, Philosophical Magazine, 97 (7) pp 497-514. Available at: http://dx.doi.org/10.1080/14786435.2016.1265681

(2015)

  1. Seifi, P. Samimi, I. Ghamarian, P. C. Collins and J.J. Lewandowski , “Grain orientation effects on delamination during fatigue of a sensitized Al–Mg alloy”, Philosophical Magazine Letters 95,11,(2015): 1-8. Available at: http://dx.doi.org/10.1080/14786435.2015.1110630
  2. Sameehan S. Joshi, Peyman Samimi, Iman Ghamarian, Shravana Katakam, Peter C. Collins, Narendra B. Dahotre, “Tensile Behavior of Laser Treated Fe-Si-B Metallic Glass”, Journal of Applied Physics, 27 October 2015, 118(16). Available at: http://dx.doi.org/10.1063/1.4934639
  3. Liu, Y., Samimi, P., Ghamarian, I., Brice, DA, Huber, D, Wang, Z., Dixit, V, Koduri, S., Huber, D, Fraser, HL, and Collins, PC,  “Discovery via Integration of Experimentation and Modeling: Three Examples for Titanium Alloys”, JOM, 67(1), January 2015, pp 164-178, Available at: http://dx.doi.org/10.1007/s11837-014-1197-3 (Cover Art for Oct. 2014 JOM)
  4. Peyman Samimi, Yue Liu, Iman Ghamarian, David A Brice, Peter C. Collins, “A new combinatorial approach to assess the Influence of Alloy Composition on the Oxidation Behavior and Concurrent Oxygen-induced Phase Transformations for Binary Ti-xCr Alloys at 650°C”, Corrosion Science, 97, August 2015, pp 150-160, Available at: http://dx.doi.org/10.1016/j.corsci.2015.05.002
  5. V. Haden, P.C. Collins, D.G. Harlow, “Yield Strength Prediction of Titanium Alloys” JOM: Volume 67, Issue 6 (2015), Page 1357-1361. Available at: http://dx.doi.org/10.1007/s11837-015-1436-2
  6. Ghamarian, I, Samimi, P, Dixit, V, and Collins, PC, “A constitutive equation relating composition and microstructure to properties in Ti-6-4 – as derived using a novel integrated computational approach”, Met Trans A, 46(11), 2015, pp 5021-5037, Available at: http://dx.doi.org/1007/s11661-015-3072-4
  7. D. Harris, W.J. Grogg, A. Akoma, B.J. Hayes, R.F. Reidy, E.F. Imhoff, P.C.Collins, “Revisiting (some of) the Lasting Impacts of the Liberty Ships Via A Metallurgical Analysis of Rivets from the SS John W. Brown”, JOM: Volume 67, Issue 12 (2015), Page 2965-2975. Available at: http://dx.doi.org/10.1007/s11837-015-1668-1

(2014)

  1. Samimi, P, Liu, Y, Ghamarian, I, Song, J, and Collins, PC, “New observations of a nanoscaled pseudomorphic bcc Co phase in bulk Co-Al-(W,Ta) superalloys”, Acta Materialia 69 (2014): 92-104. Available at: http://dx.doi.org/10.1016/j.actamat.2014.01.056
  2. Collins, PC, Haden, CV, Ghamarian, I, Hayes, B, Ales, T, Penso, G, Dixit, V and Harlow, G, “Progress towards an integration of process-structure-property-performance models for “3D printing” of titanium alloys”, JOM: Volume 66, Issue 7 (2014), Page 1299-1309, Available at: http://dx.doi.org/10.1007/s11837-014-1007-y
  3. Iman Ghamarian, Yue Liu, Peyman Samimi, Peter C. Collins, “Development and application of a novel precession electron diffraction technique to quantify deformation structures in a highly deformed material – ultrafine grained titanium”, Acta Materialia  79 (October 2014), pp. 203-215, Available at: http://dx.doi.org/10.1016/j.actamat.2014.06.063.
  4. Samimi, P., Liu, Y., Ghamarian, I., and Collins, PC, “A novel tool to assess the influence of alloy composition on the oxidation behavior and concurrent oxygen-induced phase transformations for binary Ti–xMo alloys at 650° C” Corrosion Science 89 (2014): 295-306. Available at: http://dx.doi.org/10.1016/j.corsci.2014.09.010

(2013)

  1. Collins PC, Koduri, S, Dixit, V, and Fraser, HL, “Neural Networks Relating Alloy Composition, Microstructure and Tensile Properties of α/β Processed TIMETAL 6-4”, Metallurgical and Materials Transactions A (2013) 44: 1441-1453 , March 01, 2013. http://dx.doi.org/10.1007/s11661-012-1498-5

(2012)

  1. Nag S, Zheng Y, Williams R, Devaraj A, Boyne A, Wang Y, Collins PC, Viswanathan GB, Tiley JS, Muddle BC, Banerjee R, Fraser HL, “Non-classical Homogeneous Precipitation Mediated by Compositional Fluctuations in Titanium Alloys”, Acta Metallurgica, 2012. Available at: http://dx.doi.org/10.1016/j.actamat.2012.07.033
  2. Borkar T, Gopagoni S, Nag S, Hwang JY, Collins PC, and Banerjee R, “In situ nitridation of titanium-molybdenum alloys during laser deposition”, Jour. Materials Science, 47(20), 2012, pp 7157-7166. Available at: http://dx.doi.org/10.1007/s10853-012-6656-z
  3. H Mohesni, PC Collins, T Scharf, “Nanocrystalline Orientation and Phase Mapping of Textured Coatings Revealed by Precession Electron Diffraction”, Nanomaterials and Energy, Volume 1, Issue 6, July 2012 pages 318 –323 Available at: http://dx.doi.org/10.1680/nme.12.00023

(2010)

  1. Schnick, D.E., Hahnlen, RM, Dehoff, R, Collins, P, Babu, SS, Dapino, MJ, and Lippold, JC, “Microstructural Characterization of Bonding Interfaces in Aluminum 3003 Blocks Fabricated by Ultrasonic Additive Manufacturing”, Welding Journal, 89 (5), 105S-115S, May 2010.
  2. Foltz J, Welk B, Collins PC, Fraser HL, and Williams, J, “Formation of Grain Boundary a in b Ti Alloys: Its role in Deformation and Fracture Behavior of these Alloys”, Met. Trans, June 2010, Available at: http://dx.doi.org/10.1007/s11661-010-0322-3

(2009)

  1. Collins, P, Welk, B, Searles, T, Tiley, J, Russ, JC, and Fraser, HL, “Development of methods for the quantification of microstructural features in α+β processed α/β titanium alloys”, Materials Science and Engineering A, 508, pp 174-182, 2009. Available at: http://dx.doi.org/10.1016/j.msea.2008.12.038
  2. Peterson, B, Collins, P, and Fraser, HL. “On the use of a sub-scale thermomechanical simulator to obtain accurate tensile properties of α+β and β-processed Ti-6Al-4V” Materials Science and Engineering A, 513-514, pp 357-365, 2009. Available at: http://dx.doi.org/10.1016/j.msea.2009.02.017

(2005)

  1. R., Genc, A, Hill, D, Collins, PC, and Fraser, HL, “Nanoscale TiB precipitates in laser deposited Ti-matrix composites”, Scripta Materialia 53 (12): 1433-1437, Dec. 2005. Available at: http://dx.doi.org/10.1016/j.scriptamat.2005.08.014

(2004)

  1. Banerjee R, Genc A, Collins PC, et al., “Comparison of microstructural evolution in laser-deposited and arc-melted in-situ Ti-TiB composites”, METALLURGICAL AND MATERIALS TRANSACTIONS A, 35A (7): 2143-2152 JUL 2004. Available at http://dx.doi.org/10.1007/s11661-004-0162-0
  2. Banerjee R, Bhattacharyya D, Collins PC, et al., “Precipitation of grain boundary alpha in a laser deposited compositionally graded Ti-8Al-xV alloy – an orientation microscopy study”, ACTA MATERIALIA 52 (2): 377-385 JAN 19 2004. Available at: http://dx.doi.org/10.1016/j.actamat.2003.09.038

(2003)

  1. Collins PC, Banerjee R, Fraser HL, “The influence of the enthalpy of mixing during the laser deposition of complex titanium alloys using elemental blends”, SCRIPTA MATER 48 (10): 1445-1450 MAY 2003. Available at: http://dx.doi.org/10.1016/S1359-6462(03)00081-2
  2. Collins PC, Banerjee R, Banerjee S, et al., “Laser deposition of compositionally graded titanium-vanadium and titanium-molybdenum alloys”, MAT SCI ENG A-STRUCT 352 (1-2): 118-128 JUL 15 2003. Available at: http://dx.doi.org/10.1016/S0921-5093(02)00909-7
  3. Banerjee R, Collins PC, Bhattacharyya D, et al., “Microstructural evolution in laser deposited compositionally graded alpha/beta titanium-vanadium alloys”, ACTA MATER 51 (11): 3277-3292 JUN 27 2003. Available at: http://dx.doi.org/10.1016/S1359-6454(03)00158-7
  4. Banerjee R, Collins PC, Genc A, et al., “Direct laser deposition of in situ Ti-6Al-4V-TiB composites”, MAT SCI ENG A-STRUCT 358 (1-2): 343-349 OCT 15 2003. Available at: http://dx.doi.org/10.1016/S0921-5093(03)00299-5

(2002)

  1. Banerjee R, Collins PC, Fraser HL, “Phase evolution in laser-deposited titanium-chromium alloys”, METALL MATER TRANS A 33 (7): 2129-2138 JUL 2002.

Available at: http://dx.doi.org/10.1007/s11661-002-0044-2

  1. Banerjee R, Collins PC, Fraser HL, “Laser deposition of in situ Ti-TiB composites”, ADV ENG MATER 4 (11): 847-851 NOV 2002. Available at: http://dx.doi.org/10.1002/1527-2648(20021105)4:11<847::AID-ADEM847>3.0.CO;2-C

(2001)

  1. Schwendner KI, Banerjee R, Collins PC, et al., “Direct laser deposition of alloys from elemental powder blends”, SCRIPTA MATER 45 (10): 1123-1129 NOV 19 2001. Available at: http://dx.doi.org/10.1016/S1359-6462(01)01107-1
Book Chapters
  1. Collins, PC and Fraser, HL “Modeling of Tensile Properties”, ASM Handbook, Vol. 22A, Fundamentals of Modeling for Metals Processing, p. 377-399. 
Patents

Granted

Interstitial control during additive manufacturing, US Patent App. 16/787,973

Pending
Mask-Free photolithography using metastable undercooled metal particles, US Patent App. 17/092,735