Marie Agathe Charpagne

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Education

• M.Eng., Materials and Mechanics - Ecole Nationale Superieure des Mines de Saint Etienne (2013)
• M.Sc., Energy, Materials and Processing - Ecole Nationale Superieure des Mines de Saint Etienne (2013)
• PhD, Materials Science - Mines ParisTech (2017)

Biography

Dr. Marie Agathe Charpagne was born and studied in France, where she was a first generation college student. She holds a PhD in Materials Science and Computational Mechanics from Mines ParisTech (2016), a Master of Science in Energy, Materials and Processing (2013) as well as a Master of Engineering in Materials and Mechanics (2013) from Mines Saint Etienne. Supported by a fellowship by the French Agency for Research and Technology for her graduate studies , she investigated microstructure evolution mechanisms during high temperature forming in new generation polycrystalline nickel base superalloys. Her work was awarded the Prize for the best PhD thesis by the French Society for Materials and Metals (2017) and she was named a Rising Talent of the Women’s Forum for the Economy and Society (2017). The same year, she moved to the United States to work with Professor Tresa Pollock at the University of California in Santa Barbara. During 4.5 years spent there, she developed numerical tools to analyze plasticity and strain localization processes statistically and automatically, in a variety of structural materials under mechanical loading (superalloys, titanium alloys, refractory metals, high entropy alloys). This rich experience gives her unique insights on pathways to optimize materials microstructures -hence forming processes- for improved mechanical properties and durability. She received her NSF-CAREER award in 2023.

Committed to gender equality, she has participated to several conferences dedicated to Women in STEM where she was an invited speaker, including the DEAN's Forum in Paris (2017), Women's Forum in Mexico city (2017) and W.IN Forum in New York (2018).

Aside from science, Marie is an active classical concert pianist and has given over 50 recitals across Europe and the USA. She graduated from the Conservatory of music with the highest honors in 2013 and is a winner of several international piano competitions.

Academic Positions

• Postdoctoral researcher - University of California Santa Barbara (Feb 2017-Aug 2021)

Research Interests

• Additive manufacturing
• Electron microscopy
• Multi-modal data merging
• Thermo-mechanical processing

Research Topics

• Materials for Energy and the Environment
• Mechanical Properties and Materials for Extreme Conditions

Selected Articles in Journals

• M.A. Charpagne, F. Strub, T.M. Pollock, Accurate reconstruction of EBSD datasets by a multimodal data approach using an evolutionary algorithm, Materials Characterization, 150, p.184-198 (2019) 
• M.A. Charpagne, J. Hestroffer, J.C. Stinville, A.T. Polonsky, M.P. Echlin, D. Texier, V. Valle, I.J. Beyerlein, T.M. Pollock, Slip localization in Inconel 718: a three-dimensional and statistical perspective, Acta Materialia (2021)
• M.A. Charpagne, J.C. Stinville, A.T. Polonsky, M.P. Echlin, S.P. Murray, Z. Chen, N. Bozzolo, J. Cormier, V. Valle, T.M. Pollock, Tuning Strain Localization in Polycrystalline Nickel-based Superalloys by Thermomechanical Processing, Superalloys 2021 pp. 471-481 (2020) 
• M.A. Charpagne, J.C. Stinville, P.G. Callahan, P. Villechaise, D. Texier, V. Valle, T.M. Pollock, Automated and quantitative analysis of plastic strain localization via multi-modal data recombination, Materials Characterization 163 (2020)
• M.A. Charpagne, J.M. Franchet., N. Bozzolo, Overgrown grains appearing during sub-solvus heat treatment in a polycrystalline gamma-gamma’ Nickel-based superalloy, Materials and Design 144, p.353-360 (2017) 
• M.A. Charpagne, K.V. Vamsi, Y. Eggeler, S. Murray, C. Frey, J. Saal, S. Kolli, A. Van Der Ven, T.M. Pollock, Design of Nickel-Cobalt-Ruthenium Multi-Principal Element Alloys, Acta Materialia (2020)
• M.A. Charpagne, P. Vennéguès, T. Billot, J.M. Franchet, N.Bozzolo, Evidence of multimicrometric coherent γ’ precipitates in a hot-forged γ /γ’ nickel-based superalloy, Journal of Microscopy 263-1, p.106-112 (2016) 
• M.A. Charpagne, T. Billot, J.M. Franchet, N. Bozzolo, Heteroepitaxial recrystallization: A new mechanism discovered in a polycrystalline γ-γ′ nickel based superalloy", Journal of Alloys and Compounds 688, p.685-694 (2016) 
• M.A. Charpagne, A. Polonsky., M.P. Echlin, S. Jacomet, J. de Jaeger, M. de Graef, N. Bozzolo, T.M. Pollock Growth accidents induced by primary gamma ' precipitates in a polycrystalline Nickel-based superalloy, Scripta Materialia 138, p.109-113 (2020)
• M.A. Charpagne, T. Billot, J.M. Franchet, N. Bozzolo, Heteroepitaxial recrystallization observed in RENE 65^TM and UDIMET 720^TM : A new recrystallization mechanism possibly occurring in all low lattice mismatch γ /γ’ Nickel based superalloys , Superalloys 2016 : 13th International Symposium on Superalloys, p. 417-426. (2016) 
• B.R. Goodlet, L. Mills, B. Bales, M.A. Charpagne, S.P. Murray, W.C. Lenthe, L. Petzold, T.M. Pollock Elastic Properties of Novel Co and CoNi-Based Superalloys Determined through Bayesian Inference and Resonant Ultrasound Spectroscopy, Metallurgical and Materials Transaction A 49-6, p.2324-2339 (2018) 
• C Bean, F Wang, MA Charpagne, P Villechaise, V Valle, SR Agnew, DS Gianola, TM Pollock, JC Stinville, Heterogeneous slip localization in an additively manufactured 316L stainless steel, International Journal of Plasticity, vol.159, p.103436 (2022)
• D. Texier, J.C. Stinville, M.A. Charpagne, Z. Chen, V. Valle, P. Villechaise, T. M. Pollock, J. Cormier, Role of Non-metallic Inclusions and Twins on the Variability in Fatigue Life in Alloy 718 Nickel Base Superalloy, Superalloys 2021 pp. 629-639 (2021)
• Dominic DR Peachey, Christopher P Carter, Andres Garcia-Jimenez, Anugrahaprada Mukundan, Donovan N Leonard, Marie-Agathe Charpagne, Zachary C Cordero, Directional recrystallization of an additively manufactured Ni-base superalloy, Additive Manufacturing, vol. 60, p.103198 (2022)
• F. Wang, J.C. Stinville, M.A. Charpagne, M.P. Echlin, S.R. Agnew, T.M. Pollock, M.DeGraef, D.S. Gianola, Dislocation cells in additively manufactured metallic alloys characterized by electron backscatter diffraction pattern sharpness, Materials Characterization 112673, (2023)
• J. Cappola, J.C. Stinville, M.A Charpagne, P.G. Callahan, M.P. Echlin, T.M. Pollock, A. Pilchak, M. Kasemer, On the Localization of Plastic Strain in Microtextured Regions of Ti-6Al-4V, Acta Materialia (2020)
• J.C. Stinville, M.A. Charpagne, F. Bourdin, P.G. Callahan, T.M. Pollock, Measurement of Elastic and Rotation Fields during Irreversible Deformation using Heaviside-Digital Image Correlation, Materials Characterization 169,  110600 (2020) 
• J.C. Stinville, P.G. Callahan, M.A. Charpagne, M.P. Echlin, V. Valle, T.M. Pollock, Direct Measurements of Slip Irreversibility in a Nickel Base Superalloy Using High Resolution Digital Image Correlation, Acta Materialia  186 p.172-189 (2020)
• J.C. Stinville, T. Francis, A.T. Polonsky, C.J. Torbet, M.A. Charpagne, Z. Chen, G.H. Balbus, F.Bourdin; V. Valle, P.G. Callahan, M.P. Echlin, T.M. Pollock, Time-Resolved Digital Image Correlation in the SEM for Analysis of Time Dependent Mechanisms, Experimental Mechanics, pp.1-18 (2020)  
• J.M. Hestroffer, M.I. Latypov, J.C. Stinville, M.A. Charpagne, V. Valle, M.P. Miller, T.M. Pollock, I.J. Beyerlein, Development of grain-scale slip activity and lattice rotation fields in Inconel 718, Acta Materialia, 117627 (2022)
• JC Stinville, JM Hestroffer, MA Charpagne, AT Polonsky, MP Echlin, CJ Torbet, V Valle, KE Nygren, MP Miller, O Klaas, A Loghin, IJ Beyerlein, TM Pollock, Multi-modal dataset of a polycrystalline metallic material: 3d microstructure and deformation fields, Scientific Data, vol 9, issue 1, p.1-16 (2022)
• JC Stinville, MA Charpagne, A Cervellon, S Hemery, F Wang, PG Callahan, V Valle, TM Pollock, On the origins of fatigue strength in crystalline metallic materials, Science vol. 377, issue 6610, p.1065-1071 (2022)
• Jonathan M Hestroffer, Marie-Agathe Charpagne, Marat I Latypov, Irene J Beyerlein, Graph neural networks for efficient learning of mechanical properties of polycrystals, Computational Materials Science, vol.217, p.111894 (2023)
• K.V. Vamsi, M.A. Charpagne, T.M. Pollock, High-throughput approach for estimation of intrinsic barriers in FCC structures for alloy design, Scripta Materialia 204, 114126 (2021)
• M.A.Charpagne, J.C.Stinville, F.Wang, N.Philips, T.M.Pollock, Orientation dependent plastic localization in the refractory high entropy alloy HfNbTaTiZr at room temperature, MSEA, (2022).
• M.I. Latypov, M.A. Charpagne, M. Souther, B.R. Goodlet, M.P. Echlin, I.J. Beyerlein., T.M. Pollock, Computational homogenization for multiscale forward modeling of resonant ultrasound spectroscopy of heterogeneous materials, Materials Characterization, 158 p. 109945 (2019) 
• MA Charpagne, JC Stinville, AT Polonsky, MP Echlin, TM Pollock, A Multi-modal Data Merging Framework for Correlative Investigation of Strain Localization in Three Dimensions, JOM 73, 11, pp. 3263-3271. Editor's choice
• P.R. Dawson, M.P. Miller, T.M. Pollock, J. Wendorf, L.H. Mills, J.C. Stinville, M.A. Charpagne, M.P. Echlin, Mechanical Metrics of Virtual Polycrystals (MechMet), Integrating Materials and Manufacturing Innovation pp.1-21 (2021) 
• S. Katnagallu, S. Vernier, M.A. Charpagne, B. Gault, N.Bozzolo, P. Kontis, Nucleation mechanism of hetero-epitaxial recrystallization in wrought nickel-based superalloys, Scripta Materialia 191 pp.7-11 (2021) 
• S.Hemery, J.C. Stinville, F.Wang, M.A.Charpagne, M.Emigh, V.Valle, T.M.Pollock, Strain Localization and Fatigue Crack Formation at Twist Boundaries in Titanium Alloys, Acta Materialia (2021)
• T. Francis, P. Rottmann, A.T. Polonsky, M.A. Charpagne, M.P.Echlin, V. Livescu, D. Jones, G. Gray III, M. De Graef, T.M. Pollock, Multimodal 3D Characterization of Voids in Shock-Loaded Tantalum: Implications for Ductile Spallation Mechanisms, Acta Materialia, in press (2021)
• Wyatt A Witzen, McLean P Echlin, Marie-Agathe Charpagne, Tresa M Pollock, Irene J Beyerlein, Subgrain geometrically necessary dislocation density mapping in spalled Ta in three dimensions, Acta Materialia, vol.244, p.118366 (2023)

Articles in Conference Proceedings

• A.T. Polonsky, M.A. Charpagne, M.P. Echlin, B.S. Manjunath, T.M. Pollock, Acquisition, Reconstruction and Curation of Multimodal 3D TriBeam Data, Microscopy and Microanalysis (2019)
• C. Langlois, M.A. Charpagne, S. Dubail, T. Douillard, N. Bozzolo, Ni-based superalloy: crystalline orientation mapping and gamma-gamma phases discrimination with the iCHORD method, European Microscopy Congress: Proceedings, p. 903-931 (2016)
• M.A. Charpagne, T. Billot, J.M. Franchet, N. Bozzolo, Heteroepitaxial recrystallization a new recrystallization mechanism in sub-solvus forged gamma-gamma’ nickel-based superalloys with low lattice mismatch., Recrystallization and Grain Growth conference proceedings, p. 259-264. (2016)

Other Publications

• F. Strub, M.A. Charpagne, T.M. Pollock, Correction of Electron Back-scattered Diffraction datasets using an evolutionary algorithm, (2019)

Honors

• NSF CAREER award (2023 )

Teaching Honors

• Teachers Ranked as Excellent (Fall 2022)

Research Honors

• 2021 JOM editor's choice for A Multi-modal Data Merging Framework for Correlative Investigation of Strain Localization in Three Dimensions (December 2021 )
• Best PhD thesis award - Society for Metals and Materials (SF2M) (2017)

Public Service Honors

• "Rising Talent" of the Women's Forum for the economy and society (2017)
• Key Reader Award, Metallurgical and Materials Transactions A (2022)

Recent Courses Taught

• MSE 404 AD1 (MSE 404 AD2, MSE 404 MP1, MSE 404 MP2) - Metals Processing
• MSE 406 - Thermal-Mech Behavior of Matls
• MSE 595 - Materials Colloquium