Hugo Lopez Ph.D.

, hlopez@uwm.edu
(414) 229-6005
Eng & Math Sciences 1185
Professor
Materials Science & Engineering

Education:

  • Ph.D., Metallurgical Engineering, The Ohio State University, 1983
  • M.S., Metallurgical Engineering, The Ohio State University, 1982
  • B.S., Engineering (Metallurgy) Saltillo I. Technology, 1975

Research Focus:

  • Diffusional processes.
  • Hydrogen effects in solids.
  • High temperature phase stability.

Publications:

  • W. Deqing, J. Neumann, and H. F. López,  “Reactive Synthesis of In-Situ ZrAl3-Al2O3-Al Composites.” Metallurgical and Materials Transactions A, Vol. 34A (6), 2003, pp. 1357-1360.
  • M. M. Cisneros, H. López, N. Salas, J. V. Valdés, M.A. Cisneros, and U. Figueroa, “Hydrogen Permeability in a Plasma Nitrided API X52 Steel, Materials Sci. Forum, Vol. 442, 2003, pp. 85-90.
  • H. F. Lopez, S. Wierzbiński, and E. Fraś, “Plastic Flow Properties of “In Situ” TiCp Reinforced Aluminum Composites.” Materials Sci. Forum, Vol. 442, 2003, pp. 7-16.
  • E. Fraś, K. Wiencek, M. Górny, H. F. López, “A Theoretical Model For the Heterogeneous Nucleation of Grains During Solidification, Materials Science and Technology, Vol. 19, 2003, pp. 1653-1660.
  • E. Fras, M. Gorny, H. F. Lopez, “A Dependency Between Undercooling and Eutectic Grain Density in Nodular Cast Iron-Modeling Research and Their Experimental Verification,” Archives of Metallurgy and Materials, No. 1, Vol. 49, 2004, pp. 93-111.
  • E. Fraś, M. Górny, H. F. López and H. Tartera, “Nucleation and grain density in gray cast iron-A theoretical model and experimental verification, I. J. of Cast Metals Research, 2003, Vol 16, pp. 99-104.
  • J. Saldivar-Garcia and H. F. Lopez, “Temperature Effects on the Lattice Constants and Crystal structure of a Co-27Cr-5Mo Low Carbon Alloy,” Metallurgical and Materials Transactions A, Vol. 35A, No. 8, 2003, pp. 2517-2524.
  • M. M. Cisneros, H. F. López, H. Mancha, E. Rincón, D. Vázquez, M. J. Perez and S.D. De La Torre, “Processing of Nanostructured High Nitrogen Stainless Steel by Mechanical Alloying,” Metall and Matter Trans A, Vol. 36A, 2005, pp. 1309-1316.
  • J. Saldivar-Garcia and H. F. Lopez, “Microstructural Effects on the Wear Resistance of Wrought and As-Cast Co-Cr-Mo-C Implant Alloys,” Biomedical Mats Research A, Vol. 74A, 2005, pp. 269-274.
  • E. Fras, M. Gorny and H. F. Lopez, “The Transition from Gray to White Cast Iron During Solidification:  Part I-Theoretical Background,” Metall & Matter Trans A, Vol. 36A, No. 11, 2005, pp. 3075-3082.
  • E. Fras, M. Gorny and H. F. Lopez, “The Transition from Gray to White Cast Iron During Solidification:  Part II-Experimental verification,” Metall & Matter Trans A, Vol. 36A, No. 11, 2005, pp. 3083-3092.
  • E. Fras, M. Gorny and H. F. Lopez, “The Transition from Gray to White Cast Iron During Solidification:  Part III-Thermal Analysis,” Metall & Matter Trans A, Vol. 36A, No. 11, 2005, pp. 3093-3101.
  • E. Fras, K. Wiencek, M. Gorny and H. F. Lopez, Nodule Count in Ductile Iron:  Theoretical Model based on Weibull Statistics, I. J. Cast Metals Research, Vol. 18, no. 3, 2005, pp. 156-162.
  • Fras Glownia, Guzik, and H. F. Lopez, “Synthesis of nanoparticles of vanadium carbide in the ferrite of nodular cast iron,” Solid State Phenomena, Vols. 101-102, 2005, pp. 325-328.  TransTech Publications, Switzerland.
  • E. Fras, M. Gorny, K. Wiencek and H. F. Lopez, “Density of Eutectic Cells in Castings of Gray Cast Iron: A Theoretical Model and Experimental Verification,” Archives of Metallurgy and Materials, No. 4, Vol. 50, 2005, pp. 805-826.
  • E. Fras, M. Gorny, K. Wiencek and H. F. Lopez, “The transition of Gray to White Cast Iron During Solidification,” Archives of Metallurgy and Materials, No. 1, Vol. 51, 2006, pp. 127-136.
  • E. Fras, M. Gorny and H. F. Lopez, “Thin Wall Ductile Castings as a Gradient Material,” Archives of Metallurgy and Materials, No. 3, Vol. 51, 2006, pp. 423-431.
  • E. Fras, M. Gorny and H. F. Lopez, “Gradient Structure of Ductile Iron,” Archives of Foundry, Vol. 6, No. 18, 2006, pp. 39-44 (in Polish).
  • M. J. Perez, M. M. Cisneros and H. F. Lopez, “Wear resistance of Cu-Ni-Mo Austempered Ductile Iron.” Wear, Vol. 260, Nos. 7-8, 2006, pp. 879-885.
  • H. F. Lopez, M. M. Cisneros, H. Mancha, O. Garcia and M. J. Perez, “Grain size Effects on the SCC Susceptibility of a Nitrogen Steel in Hot NaCl Solutions.”  Corrosion Science, Vol. 48, No. 4, 2006, pp. 913-924.
  • Aguilar, J. L. Albarran, H. F. Lopez and L. Martinez, “Microstructural Response on the Cracking Resistance of Alloy 600,” Materials Letters, Vol. 61, No. 1, 2007, pp. 274-277.
  • J. B. Ferguson and H. F. Lopez, “Oxidation Products of INCONEL Alloys 600 and 690 in Pressurized Water Reactor Environments and Their Role in Intergranular Stress Corrosion Cracking,” Metall and Matter Trans A, Vol. 37A, No. 8, 2006, pp. 2471-2479
  • B. Song, H. B. Park, H. G. Seong and H.F. López, “ Development of athermal ε-martensite in atomized Co–Cr–Mo–C implant alloy powders,” Acta Biomaterialia, 2006, Vol. 2, No 6, pp. 685—691.
  • Song, H. Park, H. Seong, and H. F. López , “Development of Athermal and Isothermal ε-Martensite in Atomized Co-Cr-Mo-C Implant Alloy Powders,” Metall and Matter Trans A, Vol. 37A No. 11, 2006, pp. 3197-3204.
  • Fras, M. Gorny, and H. F. Lopez, “Solidification Conditions of Gray and White Cast Iron: Part I-Theoretical Background,” Metallurgy and Foundry Engineering, Vol. 31, No. 1, 2005, pp 13-35.
  • Fras, M. Gorny, and H. F. Lopez, “Solidification Conditions of Gray and White Cast Iron: Part II-Experimental Verification,” Metallurgy and Foundry Engineering, Vol. 31, No. 1, 2005, pp 37-52.
  • Fras, M. Gorny and H. F. Lopez, “Chilling Tendency and Nodule Count in Ductile Cast Iron: Part I Theoretical background,” AFS Transactions, Vol. 114, No. 100, 2006.
  • E. Fras, M. Gorny and H. F. Lopez, “Chilling Tendency and Nodule Count in Ductile Cast Iron: Part I Theoretical background,” AFS Transactions, Vol. 114, No. 101, 2006.