• Professor, Materials Science & Engineering
  • Professor Emeritus
Karl 'Ted' Hartwig

Educational Background

  • Ph.D., Metallurgical Engineering, University of Wisconsin-Madison - 1977
  • M.S., Nuclear Engineering, University of Wisconsin-Madison - 1970
  • B.S., Nuclear Engineering, University of Wisconsin-Madison - 1969

Research Interests

  • Development of better materials (nanostructured, for low temperature use, superconductors, aluminum, normal electrical conductors, and advanced structural materials and consolidation of advanced particulates). Structure-property-processing relationships. Sever plastic deformation of materials via equal channel angular extrusion (ECAE). Applied superconductivity (composite superconductor design).

Awards & Honors

  • TEES Engineering Program Safety Excellence Award, 1997

Selected Publications

  • C. Sun, J. Ma, Y. Yang, K.T. Hartwig, S.A. Maloy, H. Wang, and X. Zhang,“Temperature and Grain Size Dependent Plasticity Instability and Strain Rate Sensitivity or Ultrafine Grained Austenitic Fe-14Cr-16Ni Alloy,” Materials Science and Engineering A, 2014.
  • C. Sun, D.W. Brown, B. Clausen, D.C. Foley, K.Y. Yu, Y. Chen, S.A. Maloy, K.T. Hartwig, H. Wang, and X. Zhang, “In Situ Neutron Diffraction Study on Temperature Dependent Deformation Mechanisms of Ultrafine Grained Austenitic Fe–14Cr–16Ni Alloy,” International Journal of Plasticity, 53: 125-134, 2014.
  • M. Song, R. Zhu, D.C. Foley, C. Sun, K.T. Hartwig, and X. Zhang, “Enhancement of Strength and Ductility in Ultrafine-grained T91 Steel Through Thermomechanical Treatments,” Journal of Materials Science, 48: 7360-7373, 2013.
  • M. Song, C. Sun, J. Jang, C.H. Han, T.K. Kim, K.T. Hartwig and X. Zhang, “Microstructure Refinement and Strengthening Mechanisms of a 12Cr ODS Steel Processed by ECAE,” Journal of Alloys and Compounds, 577: 247-256, 2013.
  • S. Balachandran, R.C. Elwell, D. Kang, R.E. Barber, T.R. Bieler, and K.T. Hartwig, “Nb Tubes for Seamless SRF Cavities,” IEEE Transactions on Applied Superconductivity, 23(3), 2013.