Peter Chancellor Collins

  • Al and Julie Renken Associate Professor
  • Materials Science and Engineering
  • Courtesy Appointment, Aerospace Engineering

Main Office

2220AA Hoover
Ames, IA 50011-2300
Phone: 515-294-5127


  • M.S. and Ph.D., Materials Science and Engineering, The Ohio State University
  • B.S., Metallurgical Engineering, University of Missouri-Rolla

Brief Biography

Peter C. Collins joined the Department of Materials Science and Engineering at Iowa State University in July, 2015.  Dr. Pete Collins received his undergraduate degree in Metallurgical Engineering from the University of Missouri-Rolla, and his MS and PhD from The Ohio State University in Materials Science and Engineering. Prior to joining ISU, Dr. Collins served as a faculty member and undergraduate coordinator in the Department of Materials Science and Engineering at the University of North Texas. Dr. Collins has also spent time standing-up a not-for-profit 501-3(c) manufacturing laboratory, and regularly engages with both industry and the government.

His experiences and interests involve the practical and theoretical treatments of microstructure-property relationship, with an extension into composition-microstructure-property relationships derived for complex multi-phase, multi-component engineering alloys. He has extensive experience in participating in large industrial programs, has conducted studies into novel metal matrix composites, and has significant research experience with additive manufacturing techniques, and combinatorial materials science.

Dr. Collins is an active member of TMS, past chairman of the ICME committee, member of the Titanium committee, and a member of the Materials Processing and Manufacturing Division.

Selected Publications


Brian MartinPeyman SamimiPeter 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: 10.1007/s13632-017-0361-x

Brice, D. A., P. SamimiI. GhamarianY. LiuM. Y. MendozaM. 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:

Fortier, Aleksandra, Yue LiuIman GhamarianPeter 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:

Brian HayesBrian Martin, Brian Welk, Sam Kuhr, Thomas AlesDavid BriceIman 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: (Open Access)

Matt Rolchigo, Michael Mendoza LondonoPeyman SamimiDavid BriceBrian 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: (Open Access)

Michael. Y. MendozaPeyman SamimiDavid. A. BriceBrian 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: (Open Access)

A. 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:

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:

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:


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:

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.

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: (Open Access)

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:

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:

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:

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: (online Jan 7 2016)


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: Online Dec 2015

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:

Seifia, P. Samimib, I. Ghamarianb, P. C. Collinsb and J.J. Lewandowskia , “Grain orientation effects on delamination during fatigue of a sensitized Al–Mg alloy”, Philosophical Magazine Letters 95,11,(2015): 1-8. Available at:

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:

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:

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: 

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:

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: (Open Access)

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: (Cover Art for Oct. 2014 JOM; Open Access)


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:  

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: . (OPEN ACCESS)

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:

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:  


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.  


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:

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:  

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:


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:

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.


Peterson, B, Collins, P, and Fraser, HL. “On the use of a sub-scale thermomechanical simulator to obtain accurate tensile properties of a+b and b-processed Ti-6Al-4V” Materials Science and Engineering A, 513-514, pp 357-365, 2009. Available at: 

Collins, P, Welk, B, Searles, T, Tiley, J, Russ, JC, and Fraser, HL, “Development of methods for the quantification of microstructural features in a+b processed a/b titanium alloys”, Materials Science and Engineering A, 508, pp 174-182, 2009. Available at:  


Banerjee. 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:


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  

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:


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:

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:

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:

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:


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:<847::AID-ADEM847>3.0.CO;2-C

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:  


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: