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Diffraction and Thermophysical Properties Group

Group

Diffraction User Center
Residual Stress User Center
Thermophysical Properties User Center
Diff. and Therm. Prop. Group
High Temperature Materials Laboratory
Metals and Ceramics Division
Oak Ridge National Laboratory



Roger Jaramillo

Publications:

ÊJournals:

Jaramillo, R. A., Lusk, M. T. and Mataya, M. C., ÒDimensional Anisotropy During Phase Transformations in a Chemically Banded 5140 Steel; Part I: Experimental InvestigationÓ, Acta Materialia, v52, no.4, pp 851-858 (2004).

Jaramillo, R. A. and Lusk, M. T., ÒDimensional Anisotropy During Phase Transformations in a Chemically Banded 5140 Steel; Part II: ModelingÓ, Acta Materialia, v52, no.4, pp 859-867 (2004).

Jaramillo, R. A. and Lusk, M. T., ÒAnisotropic Plastic Deformation During Martensitic Transformation in Chemically Banded Medium Carbon SteelsÓ, in Surface Engineering: Coatings and Heat Treatments (Eds. O. Popoola, N. B. Dehotre, S. Midea, H. Kopech), ASM, Ohio, pp 667-675 (2003).

Lusk, M. T., R. Jaramillo, A. Roche, C. Mgbokwere, S, Deshpande, ÒMicrostructural Evolution in Sprayformed Steel: Phase Transitions, Inelasticity, Residual Stress and DistortionÓ, in Microstructure Modeling and Prediction During Thermomechanical Processing (Eds. R. Srinivasan, S. L. Semiatin, A. Beaudoin, S. Fox, Z. Jin), TMS, Pennsylvania, pp 75Ñ84 (2001).

Jaramillo, R. A., Suarez, F. S., Plyburn, J. A., Camus, D. E., and Evans, R. W., ÒEvaluation of an Inconelâ Alloy 718 Microstructural Evolution ModelÓ, in Superalloys 718, 625, 706 and Various Derivatives (Eds. Loria, E. A.), TMS, Pennsylvania, pp 257Ñ266 (1997).

Camus, D. E., Jaramillo, R. A., Plyburn, J. A., and Suarez, F. S., ÒEvolution of Microstructure During Hot Rolling of Inconelâ Alloys 625 and 718Ó, in Superalloys 718, 625, 706 and Various Derivatives (Eds. Loria, E. A.), TMS, Pennsylvania, pp 291Ñ302 (1997).

In Review or Press:

Nicholson, D. M. C., Kisner, R. A., Ludtka, G. M., Sparks, C. J., Petit, L., Jaramillo, R. A., Mackiewicz-Ludtka, G., Wilgen, J. B., Sheikh-Ali, A. and Kalu, P. N., ÒThe Effect of High Magnetic Field on Phase Stablility in Fe-NiÓ, submitted to J of Applied Physics (2004).

Ludtka, G. M., Jaramillo, R. A., Kisner, R. A., Nicholson, D. M., Wilgen, J. B., Mackiewicz-Ludtka, G. and Kalu, P. N., ÒIn Situ Evidence of Enhanced Phase Transformation Kinetics in a Medium Carbon Steel Due to High Magnetic FieldsÓ, submitted to Scripta Materialia (2004).

Theses

Thesis: ÒAnisotropic Plastic Deformation during Martensitic Transformation in Chemically Banded Medium Carbon Steels

Thesis: ÒAn Internal State Variable Approach for Modeling Recrystallization

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Contact:
Roger A. Jaramillo
Metals and Ceramics Division
Oak Ridge National Laboratory
P.O. Box 2008
MS6064, Bldg. 4515
Oak Ridge, TN 37831-6064

Phone: (865) 576-3768
Fax: (865) 574-3940
E-mail: jaramillora@ornl.gov



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Acknowledgments

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