@article {1906, title = {In situ crack opening displacement growth rates of SiC/SiC ceramic matrix minicomposites}, journal = {Journal of the European Ceramic Society}, volume = {43}, year = {2023}, month = {02}, doi = {10.1016/j.jeurceramsoc.2023.01.061}, author = {Muir, C. and Swaminathan, B. and Musaffar, Abed and McCarthy, N.R. and Almansour, Amjad and Pollock, T.m. and Kiser, J.D. and Smith, C. and Daly, S. and Sevener, Kathleen} } @article {1846, title = {Inducing skyrmion flop transitions in Co 8 Zn 8 Mn 4 at room temperature}, journal = {Physical Review Materials}, volume = {7}, year = {2023}, month = {04}, doi = {10.1103/PhysRevMaterials.7.044401}, author = {Meynell, Simon and Eggeler, Yolita and Bocarsly, Joshua and Kitchaev, Daniil and Rhodes, Bailey and Pollock, Tresa and Wilson, Stephen and Ven, Anton and Seshadri, Ram and Graef, Marc and Jayich, Ania and Gianola, Daniel} } @article {1841, title = {Insights into Plastic Localization by Crystallographic Slip from Emerging Experimental and Numerical Approaches}, journal = {Annual Review of Materials Research}, volume = {53}, year = {2023}, month = {07}, pages = {275-317}, doi = {10.1146/annurev-matsci-080921-102621}, author = {Stinville, Jean-Charles and Charpagne, Marie-agathe and Maa{\ss}, Robert and Proudhon, Henry and Ludwig, W. and Callahan, P.G. and Wang, Fulin and Beyerlein, I.J. and Echlin, M.P. and Pollock, T.m.} } @article {1981, title = {In Situ X-ray Radiography and Computational Modeling to Predict Grain Morphology in β-Titanium during Simulated Additive Manufacturing}, journal = {Metals}, volume = {12}, year = {2022}, month = {07}, pages = {1217}, doi = {10.3390/met12071217}, author = {Jasien, Chris and Saville, Alec and Becker, Chandler and Klemm-Toole, Jonah and Fezzaa, Kamel and Sun, Tao and Pollock, Tresa and Clarke, Amy} } @article {1661, title = {Influence of plastic deformation on the magnetic properties of Heusler MnAu2Al}, journal = {Phys. Rev. Materials}, volume = {5}, year = {2021}, month = {01/2021}, chapter = {014408}, abstract = {

The Heulser intermetallic\ MnAu2Al\ is shown to undergo a dramatic change in net magnetization in response to plastic deformation. A mechanism is proposed involving antiferromagnetic interactions in the otherwise ferromagnetic compound (when ordered) that arise due to chemical changes at the antiphase boundaries created by the deformation. The coupling between chemical and magnetic order across antiphase boundaries is likely to occur in other ordered magnetic systems and may provide an explanation for otherwise anomalous magnetic behavior across several systems, including other Heusler intermetallics.

}, doi = {https://doi.org/10.1103/PhysRevMaterials.5.014408}, url = {https://journals.aps.org/prmaterials/abstract/10.1103/PhysRevMaterials.5.014408}, author = {Levin, Emily E. and Kitchaev, Daniil A. and Eggeler, Yolita M and Mayer, Justin A. and Behera, Piush and Gianola, Daniel S. and Van der Ven, Anton and Pollock, Tresa M. and Seshadri, Ram} } @article {1676, title = {Insight into microstructure-sensitive elastic strain concentrations from integrated computational modeling and digital image correlation}, journal = {Scripta Materialia}, volume = {192}, year = {2021}, pages = {78{\textendash}82}, abstract = {

The microstructural origins of highly localized elastic strain concentrations in polycrystalline microstructures under monotonic loading are studied using grain-scale, in situ digital image correlation and crystal plasticity finite element method. It is shown that the locations of exceptionally high elastic strain concentrations in the microstructure depend on particular crystallographic and morphological orientations of grains and less so on crystalline details of their local neighborhood. Based on these results, we discuss how topological and crystallographic features of annealing twin boundaries can increase the likelihood of slip band initiation throughout the microstructure of polycrystalline Ni-base superalloys.

}, keywords = {Elasticity, Micromechanics, Microstructure, Superalloys}, issn = {13596462}, doi = {10.1016/j.scriptamat.2020.10.001}, url = {https://doi.org/10.1016/j.scriptamat.2020.10.001}, author = {Latypov, Marat I. and Stinville, Jean Charles and Mayeur, Jason R. and Hestroffer, Jonathan M. and Pollock, Tresa M. and Beyerlein, Irene J.} } @article {2126, title = {Interpreting acoustic energy emission in SiC/SiC minicomposites through modeling of fracture surface areas}, journal = {Journal of the European Ceramic Society}, year = {2021}, month = {06}, doi = {10.1016/j.jeurceramsoc.2021.06.030}, author = {Swaminathan, B. and McCarthy, N. and Almansour, Amjad and Sevener, Kathleen and Musaffar, Abed and Pollock, T. and Kiser, J. and Daly, S.} } @article {1501, title = {In-plane and out-of-plane deformation at the sub-grain scale in polycrystalline materials assessed by confocal microscopy}, journal = {Acta Materialia}, volume = {169}, year = {2019}, pages = {260{\textendash}274}, abstract = {

High-resolution digital image correlation (HR-DIC) techniques have become essential in material mechanics to assess strain measurements at the scale of the elementary mechanisms responsible of the deformation in polycrystalline materials. The purpose of this study is to demonstrate the use of laser scanning confocal microscopy (LSCM) coupled with DIC techniques to deepen knowledge on the deformation process of a polycrystalline nickel-based superalloy at room temperature. The LSCM technique is capable of detecting both in-plane and out-of-plane strain localization within slip bands at the sub-grain level. The LSCM observations are consistent with previous in-situ scanning electron microscopy (SEM) studies: The onset of crystal plasticity occurs primarily near \Σ3 twin boundaries with macroscopic loading in the elastic domain (macroscopic stress as low as 80\% of the 0.2\% offset yield strength (Y.S. 0.2\% )). This intense irreversible strain localization occurs with either a high Schmid factor (\μ \> 0.43) or a significant elastic modulus difference between the pair of twins (\Δ\Ε \> 100 GPa). In the plastic deformation domain, transgranular slip activity following slip systems with the highest Schmid factor is mostly responsible for the deformation at the grain level, thus leading to strain percolation. The simultaneous in-plane and out-of-plane deformation assessment via the HR-LSCM-DIC technique was found to be essential for the identification of active slip systems. Finally, the HR-LSCM-DIC technique enabled the quantification of the glide amplitude involved in the three-dimensional shearing process at the grain level that solely in-plane measurements cannot provide.

}, keywords = {High Resolution-Digital Image Correlation (HR-DIC), In-situ tensile testing, Laser scanning confocal microscopy (LSCM), Nickel-based polycrystalline superalloy, Strain localization}, issn = {13596454}, doi = {10.1016/j.actamat.2019.03.001}, url = {https://doi.org/10.1016/j.actamat.2019.03.001}, author = {Liu, J. H. and Vanderesse, N. and Stinville, J. C. and Pollock, T. M. and Bocher, P. and Texier, D.} } @article {1261, title = {Interfacial diffusion in high-temperature deformation of composites: A discrete dislocation plasticity investigation}, journal = {Journal of the Mechanics and Physics of Solids}, volume = {98}, year = {2017}, pages = {330{\textendash}349}, doi = {10.1016/j.jmps.2016.09.002}, author = {Shishvan, Siamak S. and Pollock, Tresa M. and Mcmeeking, Robert M. and Deshpande, Vikram S.} } @article {echlin2016incipient, title = {Incipient slip and long range plastic strain localization in microtextured Ti-6Al-4V titanium}, journal = {Acta Materialia}, volume = {114}, year = {2016}, pages = {164{\textendash}175}, publisher = {Pergamon}, author = {Echlin, McLean P and Stinville, Jean Charles and Miller, Victoria M and Lenthe, William C and Pollock, Tresa M} } @article {shishvan2016interfacial, title = {Interfacial diffusion in high-temperature deformation of composites: a discrete dislocation plasticity investigation}, journal = {Journal of the Mechanics and Physics of Solids}, year = {2016}, publisher = {Pergamon}, author = {Shishvan, Siamak S and Pollock, Tresa M and McMeeking, Robert M and Deshpande, Vikram S} } @article {echlin2015situ, title = {In situ Femtosecond Laser and Argon Ion Beams for 3D Microanalysis using the TriBeam}, journal = {Microscopy and Microanalysis}, volume = {21}, number = {S3}, year = {2015}, pages = {1847{\textendash}1848}, publisher = {Cambridge University Press}, author = {Echlin, MP and Lenthe, WC and Douglas, J and Titus, M and Guerts, R and Straw, M and Pollock, TM} } @article {birkel2013improving, title = {Improving the thermoelectric properties of half-Heusler TiNiSn through inclusion of a second full-Heusler phase: microwave preparation and spark plasma sintering of TiNi 1+ x Sn}, journal = {Physical Chemistry Chemical Physics}, volume = {15}, number = {18}, year = {2013}, pages = {6990{\textendash}6997}, publisher = {Royal Society of Chemistry}, author = {Birkel, Christina S and Douglas, Jason E and Lettiere, Bethany R and Seward, Gareth and Verma, Nisha and Zhang, Yichi and Pollock, Tresa M and Seshadri, Ram and Stucky, Galen D} } @article {birkel2013influence, title = {Influence of Ni nanoparticle addition and spark plasma sintering on the TiNiSn{\textendash}Ni system: structure, microstructure, and thermoelectric properties}, journal = {Solid State Sciences}, volume = {26}, year = {2013}, pages = {16{\textendash}22}, publisher = {Elsevier Masson}, author = {Birkel, Christina S and Douglas, Jason E and Lettiere, Bethany R and Seward, Gareth and Zhang, Yichi and Pollock, Tresa M and Seshadri, Ram and Stucky, Galen D} } @article {allison2013integrated, title = {Integrated Computational Materials Engineering (ICME): Implementing ICME in the Aerospace, Automotive, and Maritime Industries}, journal = {A Study Organized by The Minerals, Metals \& Materials Society. The Minerals, Metals \& Materials Society, Warrendale, PA}, volume = {15086}, year = {2013}, author = {Allison, John and Cowles, Brad and DeLoach, John and Pollock, Tresa and Spanos, George} } @article {beyerlein2013interface, title = {Interface-driven microstructure development and ultra high strength of bulk nanostructured Cu-Nb multilayers fabricated by severe plastic deformation}, journal = {Journal of materials research}, volume = {28}, number = {13}, year = {2013}, pages = {1799{\textendash}1812}, publisher = {Cambridge University Press}, author = {Beyerlein, Irene J and Mara, Nathan A and Carpenter, John S and Nizolek, Thomas and Mook, William M and Wynn, Thomas A and McCabe, Rodney J and Mayeur, Jason R and Kang, Keonwook and Zheng, Shijian and others} } @article {kumar2011situ, title = {In situ damage assessment in a cast magnesium alloy during very high cycle fatigue}, journal = {Scripta Materialia}, volume = {64}, number = {1}, year = {2011}, pages = {65{\textendash}68}, publisher = {Elsevier}, author = {Kumar, Anish and Adharapurapu, Raghavendra R and Jones, J Wayne and Pollock, Tresa M} } @article {liu2011situ, title = {In situ synchrotron X-ray imaging of high-cycle fatigue crack propagation in single-crystal nickel-base alloys}, journal = {Acta Materialia}, volume = {59}, number = {13}, year = {2011}, pages = {5103{\textendash}5115}, publisher = {Elsevier}, author = {Liu, L and Husseini, NS and Torbet, CJ and Lee, W-K and Clarke, R and Jones, JW and Pollock, TM} } @article {kumar2010situ, title = {In situ characterization of fatigue damage evolution in a cast Al alloy via nonlinear ultrasonic measurements}, journal = {Acta Materialia}, volume = {58}, number = {6}, year = {2010}, pages = {2143{\textendash}2154}, publisher = {Pergamon}, author = {Kumar, Anish and Torbet, Christopher J and Pollock, Tresa M and Jones, J Wayne} } @article {liu2008situ, title = {In situ imaging of high cycle fatigue crack growth in single crystal nickel-base superalloys by synchrotron X-radiation}, journal = {Journal of Engineering Materials and Technology}, volume = {130}, number = {2}, year = {2008}, pages = {021008}, publisher = {American Society of Mechanical Engineers}, author = {Liu, Liu and Husseini, Naji S and Torbet, Christopher J and Kumah, Divine P and Clarke, Roy and Pollock, Tresa M and Jones, J Wayne} } @article {kumah2008situ, title = {In Situ Imaging of High Cycle Fatigue Crack Growth in Single Crystal Nickel-Base Superalloys by Synchrotron X-Radiation}, journal = {Ann Arbor}, volume = {1001}, year = {2008}, pages = {48109}, author = {Kumah, Divine P and Clarke, Roy and Pollock, Tresa M and Jones, J Wayne} } @article {carroll2008interfacial, title = {Interfacial Dislocation Networks and creep in directional coarsened Ru-containing nickel-base single-crystal superalloys}, journal = {Metallurgical and Materials Transactions A}, volume = {39}, number = {6}, year = {2008}, pages = {1290{\textendash}1307}, publisher = {Springer US}, author = {Carroll, LJ and Feng, Q and Pollock, TM} } @conference {pollock2008intermetallic, title = {Intermetallic Bond Coats: Systems Compatibility and Platinum-Group Metal Additions}, booktitle = {MRS Proceedings}, volume = {1128}, year = {2008}, pages = {1128{\textendash}U06}, publisher = {Cambridge University Press}, organization = {Cambridge University Press}, author = {Pollock, Tresa and Widrevitz, Dan and Pong, Russell and Cao, Fang and Tryon, Bryan} } @conference {wang2007influence, title = {Influence of Ru and Cr on the heat-treated microstructure of Ni-based superalloys}, booktitle = {Materials science forum}, volume = {546}, year = {2007}, pages = {1207{\textendash}1210}, publisher = {Trans Tech Publications}, organization = {Trans Tech Publications}, author = {Wang, WB and Feng, Qiang and Carroll, LJ and Wang, YL and Chen, Guo Liang and Pollock, TM} } @article {tryon2004intermetallic, title = {Intermetallic phases formed by ruthenium{\textendash}nickel alloy interdiffusion}, journal = {Intermetallics}, volume = {12}, number = {7}, year = {2004}, pages = {957{\textendash}962}, publisher = {Elsevier}, author = {Tryon, B and Feng, Q and Pollock, T} } @article {biery2001influence, title = {Influence of microstructure and strain distribution on failure properties in intermetallic TiAl-based alloys}, journal = {Materials Science and Engineering: A}, volume = {319}, year = {2001}, pages = {613{\textendash}617}, publisher = {Elsevier}, author = {Biery, NE and De Graef, M and Pollock, TM} } @booklet {harding1997impact, title = {Impact damage and fatigue behavior of gamma TiAl}, year = {1997}, publisher = {The Minerals, Metals and Materials Society, Warrendale, PA (United States)}, author = {Harding, TS and Jones, JW and Pollock, TM and Steif, PS and Rubal, MP} } @article {fahrmann1996influence, title = {The influence of microstructure on the measurement of $\gamma$-$\gamma$' lattice mismatch in single-crystal Ni-base superalloys}, journal = {Materials Science and Engineering: A}, volume = {210}, number = {1}, year = {1996}, pages = {8{\textendash}15}, publisher = {Elsevier}, author = {F{\"a}hrmann, M and Wolf, JG and Pollock, TM} } @article {fahrmann1996influence, title = {The influence of microstructure on the measurement of yy{\textquoteright}lattice mismatch in single-crystal Ni-base superalloys}, journal = {Materials Science \& Engineering A}, volume = {1}, number = {210}, year = {1996}, pages = {8{\textendash}15}, author = {F{\"a}hrmann, M and Wolf, JG and Pollock, TM} } @article {pollock1996situ, title = {In-situ observations of crack initiation and growth at notches in cast Ti-48Al-2Cr-2Nb}, journal = {Scripta materialia}, volume = {35}, number = {11}, year = {1996}, pages = {1311{\textendash}1316}, publisher = {Pergamon}, author = {Pollock, TM and Mumm, DR and Muraleedharan, K and Martin, PL} } @inbook {pollock1988intermediate, title = {Intermediate temperature creep deformation in CMSX-3 single crystals}, booktitle = {Superalloys 1988}, year = {1988}, pages = {285}, publisher = {TMS Warrendale}, organization = {TMS Warrendale}, author = {Pollock, Tresa M and Argon, AS} }