Dr. Tucker specializes in materials science and metallurgical engineering with specific expertise in aerospace applications. He applies his expertise to failure analyses of all types as well as intellectual property disputes, including validity and infringement. His experience is with a variety of alloys (aluminum, copper, steel, superalloys, and titanium to name a few) and various investigation methods (fatigue testing, tensile testing, microscopy, and simulation).
Dr. Tucker has spent nearly a decade researching a variety of material science and metallurgy areas. Previously, he was a contract research scientist at Air Force Research Laboratory, focusing on jet engine rotating parts and aerospace structural materials as it relates to aircraft failure mechanisms. He has specific expertise in fatigue, corrosion, creep, metallurgical processing (casting, forging, rolling, heat treating), material selection for structural applications, and welding techniques for weld joint microstructure vulnerability and welding failure. His doctoral work focused on analyzing nickel-based superalloy fatigue for aircraft turbine engine rotating part failure. His research led to improved alloy development methodologies that extend component service life.
Dr. Tucker has presented and published in numerous peer-reviewed journals and conferences, including: Modelling and Simulation in Materials Science and Engineering, Acta Materialia, Metallurgical and Materials Transactions, MS&T, and TMS. Dr. Tucker is also a voting member on the ASTM Metallography committee with jurisdiction over 35 standards.
CREDENTIALS & PROFESSIONAL HONORS
- Ph.D., Materials Science & Engineering, Carnegie Mellon University, 2013
- M.S., Materials Science & Engineering, Carnegie Mellon University, 2010
- B.S., Materials Science & Engineering, University of Michigan, Ann Arbor, 2009, with honors
Pilchak AL, Shank J, Tucker JC, Srivatsa S, Fagin LF, Semiatin L. A dataset for the development, verification and validation of microstructure-sensitive process models in near-alpha titanium alloys. Integrating Materials and Manufacturing Innovation; DOI: 10.1186/s40192-016-0056-1
Tucker JC, Cerrone A, Ingraffea A, Rollett AD. Crystal plasticity finite element analysis for René88DT statistical volume element generation. Modelling and Simulation in Materials Science and Engineering 2015; 23(3):035003.
Donegan SP, Tucker JC, Rollett AD, Barmak K, Groeber M. Extreme value analysis of tail departure from log-normality in experimental and simulated grain size distributions. Acta Materialia 2013; 61(15):5595–5604.
Tucker JC, Chan LH, Rohrer GS, Groeber MA, Rollett AD. Comparison of grain size distributions in a Ni-based superalloy in three and two dimensions using the Saltykov method. Scripta Materialia 2012; 66:553–557.
Tucker JC, Chan LH, Rohrer GS, Groeber MA, Rollett AD. Tail departure of log-normal grain size distribution in 3D synthetic microstructures. Metallurigcal and Materials Transaction A 2012; 43(8):2810–2822.
Gangireddy S, Karlsdottir SN, Norton SJ, Tucker JC, Halloran JW. In situ microscopy observation of liquid flow, zirconia growth, and CO bubble formation during high temperature oxidation of zirconium diboride-silicon carbide. Journal of the European Ceramic Society 2010; 30(11):2365-2374.
Tucker JC, Groeber MA, Semiatin SL, Pilchak AL. Synthetic Building and Targeted Analysis of Life-Limiting Microtextured Region. Proceedings of the 13th World Congress on Titanium 2016; 1913¬–1918.
Cerrone A, Spear A, Tucker J, Stein C, Rollett A, Ingraffea A. Modeling crack nucleation at coherent twin boundaries in nickel-based superalloys. Materials Science & Technology, Pittsburgh, PA, 2012.
Cerrone A, Tucker J, Stein C, Rollett A, Ingraffea A. Micromechanical modeling of René88DT: From characterization to analysis. 2012 Joint Conference on the Engineering Mechanics Institute and the 11th ASCE Joint Specialty Conference on Probabilistic Mechanics and Structural Reliability, Notre Dame, IN, 2012.
Budiansky ND, Dennies DP, Forman JC, Wong DT, Tucker JC. Computed X-Ray Tomography of Powder Metallurgy Product for Rapid, Quantitative Size and Shape Distribution Analysis. Microscopy & Microanalysis 2016, Columbus, OH, 2016.
Tucker JC, Weihing TJ, Groeber MA, Pilchak AL. Modeling the Probability of Occurrence of Rarely Occurring Critical Microstructural Features. 3rd International Congress on 3D Materials Science 2016, Chicago, IL, July 2016.
Tucker JC, Pilchak AL, Groeber MA, Semiatin L. Objective Characterization, Synthetic Building and Targeted Analysis of Microtextured Regions from Electron Backscatter Diffraction Data. The 13th World Conference on Titanium 2015, San Diego, CA, August 2015.
Tucker JC, Weihing TJ, Pilchak AL, Groeber MA. Probabilistic Occurrence of Weakest Link Microstructural Features in Two-Phase Titanium. Integrated Computational Materials Science 2015, Colorado Springs, CO, June 2015.
Pilchak AL, Tucker JC. Finding the weakest link within the hierarchy of microstructure in titanium alloys. TMS 2015, Orlando, FL, March 2015.
Tucker JC, Weihing TJ, Pilchak AL, Groeber MA. Instantiating microtextured regions in alpha+beta titanium alloys. Materials Science & Technology 2014, Pittsburgh, PA, October 2014.
Pilchak AL, Li J, Sha G, Groeber M, Tucker JC, Rohklin SI. A quantitative assessment of microtexture in titanium alloys using destructive and nondestructive methods. Microscopy and Microanalysis 2014, Hartford, CT, August 2014.
Tucker JC, Pilchak AL, Groeber MA. Quantify and representing non-primary phases in metallic microstructure. 3D Materials Science 2014, Annecy, France, July 2014.
Pilchak AL, Schwalbach EJ, Tucker JC, Szczepanski CJ, Semiatin SL. Simulating the evolution of microtextured regions during hot-working of a near-alpha titanium alloy. TMS 2014, San Diego, CA, February 2014.
Tucker JC, Cerrone A, Rollett AD, Ingraffea A. Synthetic microstructure-based lifing of Ni-based superalloys. Materials Science & Technology 2012, Pittsburgh, PA, October 2012.
Tucker JC, Cerrone A, Rollett AD, Ingraffea A. Microstructure-based life modeling of Ni-based superalloys. 3D Materials Science 2012, Seven Springs, PA, July 2012.
Tucker JC, Stein C, Chan LH, Cerrone AR, Ingraffea AR. Fatigue interrogating 3D synthetic microstructures of Ni-based alloys. TMS 2012, Orlando, FL, March 2012.
Tucker JC, Stein C, Sintay S, Chan LH, Rollett AD. Stereology of synthetic microstructures representing Ni-based superalloys. Materials Science & Technology 2011, Columbus, OH, October 2011.
Tucker JC, Rollett AD, Stein C, Loghin A, Chan L. Matching statistics of synthetic microstructures to experimental grain size. Integrated Computational Materials Science 2011, Seven Springs, PA, July 2011.
Tucker JC, Rollett AD, Stein C, Loghin A, Chan L. Matching statistics of synthetic microstructures to experimental grain size. Department of Defense High Performance Computer Modernization Program Users Group Conference 2011, Portland, OR, June 2011.
Tucker JC, Brahme A, Fridy J, Lee S-B, Groeber M, Sintay S, Dillon S, Li J, Roberts C, Rohrer GS, Uyar F, Hu L, Chan L, Wilson SR, Suter RM, Lee SF, Hefferan C, Jnd L, Rollett AD, Laflen J, Loghin A. Tail departure of log-normal grain size distribution in 3D synthetic microstructures. TMS 2011, San Diego, CA, March 2011.
Tucker JC, Gangireddy S, Halloran JW. Novel optical microscopy for imaging beneath the surface of oxide scales on ZrB2-SiC. Materials Science & Technology 2008, Pittsburgh, PA, October 2008.
Onsite Contractor, Air Force Research Laboratory, 2013–2015
Visiting Scientist, General Electric Aviation, 2012
Visiting Scientist, General Electric Global Research, 2011
Association for Iron & Steel Technology—AIST, Member, Metallurgy-Steelmaking & Casting Technology Committee
American Society of Metals—ASM
American Society for Testing and Materials—ASTM, Voting Member, Committee E04 on Metallography with jurisdiction over 35 standards
Failure Analysis Society—FAS
The Minerals, Metals, and Materials Society—TMS
Executed government contracts including developing open source and proprietary software for analyzing microstructural data and investigating titanium alloy life limiting behavior in aerospace structural applications.
Participated in a patent infringement litigation related to specialty steel. Responsible for all processing steps, including: slab heating, hot rolling, hot band annealing, cold rolling, decarburization, nitriding, and finish annealing.
Consulted in a large-scale international arbitration involving continuous casting of very-thick-walled pipeline steel with hard spots. Responsible for quality control, quality assurance, non-destructive testing, fracture mechanics, hydrogen-induced cracking, and sulfide stress cracking aspects of the matter.
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