Boian Alexandrov

Boian Alexandrov

Research Associate Professor

Honors

  • 2019 Adams Memorial Membership Award.
  • 2019 Fellow of the American Society for Metals International.
  • 2018 First Place Poster Award, Professional Category, AWS.
  • 2018 Second Place Award, Scanning Electron Microscopy.
  • 2017 Lumley Research Award.
  • 2015 Fellow of the American Welding Society.
  • 2013 Warren F. Savage Memorial Award.
  • 2012 William Spraragen Memorial Award.
  • 2012 Lumley Research Award.
  • 2011 Elmer L. Hann Award.
  • 2010 First Place Award in Scanning Electron Microscopy.
  • 2010 Third Place DuBose-Crouse Award for Unique, Unusual, and New Techniques in Microscopy.
  • 2003-2004 NSF - NATO Fellowship, Welding Engineering Program, The Ohio State University.
  • 2003-2003 Scholarship , Institute of Joining and Beam Technology, Otto von Guericke University, Germany.
  • 2001-2001 Clare College Scholarship, Cambridge Colleges Hospitality Scheme, Cambridge, UK.
  • 1994-1998 Institute of Welding and Quality, Lisbon, Portugal / EU Program Tempus, five short term Fellowships.
  • 1992-1993 Scholarship, University College Dublin, Ireland / EU Program TEMPUS.
  • 1989-1989 Scholarship, Dept. Physical Metallurgy, Welding Research Institute Bratislava.
  • 1988-1988 Scholarship, Dept. Physical Metallurgy, Welding Research Institute Bratislava, Slovakia.

Journal Articles

2019

  • Kuper, M.W.; Alexandrov, B.T., 2019, "Retention of Delta Ferrite in the Heat-Affected Zone of Grade 91 Steel Dissimilar Metal Welds." METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE 50A, no. 6, 2732-2747 - 2732-2747.
  • Wang, H.; Alexandrov, B.T.; Przybylowicz, E., 2019, "Experimental and numerical modeling study of solidification cracking in Alloy 52M filler metal in the cast pin tear test." Welding in the World 63, no. 3, 913-924 - 913-924.
  • Frei, J.; Alexandrov, B.T.; Rethmeier, M., 2019, "Low heat input gas metal arc welding for dissimilar metal weld overlays part III: hydrogen-assisted cracking susceptibility." Welding in the World 63, no. 3, 591-598 - 591-598.

2018

  • Stone, D.J.; Alexandrov, B.T.; Penso, J.A., 2018, "Alloy composition and critical temperatures in type 410 steel welds." Welding Journal 97, no. 10, 286s-300s - 286s-300s.
  • Shapiro, A.E.; Landis, A.; Orr, A.; Wieneke, M. et al., 2018, "Testing Options for Silver-Free Brazing Alloys." WELDING JOURNAL 97, no. 5, 56-60 - 56-60.
  • Frei, J.; Alexandrov, B.T.; Rethmeier, M., 2018, "Low heat input gas metal arc welding for dissimilar metal weld overlays part II: the transition zone." Welding in the World 62, no. 2, 317-324 - 317-324.

2017

  • Fink, C.; Alexandrov, B.T., 2017, "Effect of post-weld heat treatment on fusion boundary microstructure in dissimilar metal welds for subsea service." Materialpruefung/Materials Testing 59, no. 6, 547-554 - 547-554.
  • Riggs, B.; Benatar, A.; Alexandrov, B.T.; Xu, R., 2017, "Experimental Validation of Damage Zone Models for Lap-Shear Brazed Joints Using DIC." WELDING JOURNAL 96, no. 11, 421S-428S - 421S-428S.
  • Riggs, B.; Alexandrov, B.; Benatar, A.; Xu, R., 2017, "Metallurgical characterisations of CMSX-4 vacuum-brazed with BNi-2 and BNi-9." Science and Technology of Welding and Joining 22, no. 3, 227-235 - 227-235.

2016

  • Riggs, B.B.; Alexandrov, B.B.; Benatar, A.A.; Xu, R.R., 2016, "Thermodynamic and kinetic simulations of high temperature brazing: microstructure evolution in CMSX-4 joints." Science and Technology of Welding and Joining 1-10 - 1-10.
  • Frei, J.; Alexandrov, B.T.; Rethmeier, M., 2016, "Low heat input gas metal arc welding for dissimilar metal weld overlays part I: the heat-affected zone." Welding in the World 60, no. 3, 459-473 - 459-473.

2015

  • Mendoza, I.; Villalobos, D.; Alexandrov, B.T., 2015, "Crack propagation of Ti alloy via adiabatic shear bands." Materials Science and Engineering A 645, 306-310 - 306-310.
  • Marchal, J.T.; Duffey, M.J.; Loney, M.R.; Alexandrov, B.T. et al., 2015, "Silver-free filler metals meet strength requirements in brazed joints." Welding Journal 94, no. 11, 62-66 - 62-66.
  • Duffey, M.J.; Marchal, J.T.; Loney, M.R.; Alexandrov, B.T. et al., 2015, "Evaluation of New Silver-Free Brazing Filler Metals." WELDING JOURNAL 94, no. 3, 40-46 - 40-46.

2013

  • Alexandrov, B.T.; Lippold, J.C., 2013, "Use of the cast pin tear test to study solidification cracking." Welding in the World 57, no. 5, 635-648 - 635-648.
  • Alexandrov, B.T.; Lippold, J.C.; Sowards, J.W.; Hope, A.T. et al., 2013, "Fusion boundary microstructure evolution associated with embrittlement of Ni-base alloy overlays applied to carbon steel." Welding in the World 57, no. 1, 39-53 - 39-53.

2012

  • 2012, "Phase Transformations In Creep Strength Enhanced Ferritic Steel Welds." Machines, Technologies, Materials 6, no. 4,
  • Lolla, T.; Cola, G.; Narayanan, B.; Alexandrov, B. et al., 2012, "Comment on 'Development of rapid heating and cooling ( flash processing) process to produce advanced high strength steel microstructures' by Lolla et al., with a response from the authors Response." MATERIALS SCIENCE AND TECHNOLOGY 28, no. 1, 126-127 - 126-127.
  • Sowards, J.W.; Liang, D.; Alexandrov, B.T.; Frankel, G.S. et al., 2012, "Solidification behavior and weldability of dissimilar welds between a Cr-free, Ni-Cu welding consumable and Type 304L austenitic stainless steel." Metallurgical and Materials Transactions A: Physical Metallurgy and Materials Science 43, no. 4, 1209-1222 - 1209-1222.
  • Yue, X.; Lippold, J.C.; Alexandrov, B.T.; Babu, S.S., 2012, "Continuous Cooling Transformation Behavior in the CGHAZ of Naval Steels." WELDING JOURNAL 91, no. 3, 67S-75S - 67S-75S.

2011

  • Sowards, J.W.; Liang, D.; Alexandrov, B.T.; Frankel, G.S. et al., 2011, "A new chromium-free welding consumable for joining austenitic stainless steels." Welding Journal 90, no. 4,
  • Alexandrov, B.T.; Hope, A.T.; Sowards, J.W.; Lippold, J.C. et al., 2011, "Weldability studies of high-Cr, Ni-Base filler metals for power generation applications." Welding in the World 55, no. 3-4, 65-76 - 65-76.
  • 2011, "Alternatives for Joining Stainless Steel to Reduce Cr(VI) Emissions and Occupational Exposures." JOURNAL OF SHIP PRODUCTION AND DESIGN 27, no. 2,
  • Lolla, T.; Cola, G.; Narayanan, B.; Alexandrov, B. et al., 2011, "Development of rapid heating and cooling (flash processing) process to produce advanced high strength steel microstructures." Materials Science and Technology 27, no. 5, 863-875 - 863-875.

2010

  • Liang, D.; Sowards, J.W.; Frankel, G.S.; Alexandrov, B.T. et al., 2010, "A corrosion study of nickel-copper and nickel-copper-palladium welding filler metals." Materials and Corrosion 61, no. 11, 909-919 - 909-919.
  • Liang, D.; Sowards, J.W.; Frankel, G.S.; Alexandrov, B.T. et al., 2010, "Corrosion resistance of welds in type 304L stainless steel made with a nickel-copper-ruthenium welding consumable." Corrosion Science 52, no. 7, 2439-2451 - 2439-2451.

2008

  • Siefert, J.; Alexandrov, B.; Lippold, J.; Sanders, J. et al., 2008, "Examination of phase transformations during PWHT of steel P91." Welding in the World 52, no. SPEC. ISS., 75-80 - 75-80.

2007

  • Alexandrov B. T. and J. C. Lippold, 2007, "Single Sensor Differential Thermal Analysis of Phase Transformations and Structural Changes during Welding and Postweld Heat Treatment." Welding in the World 51, no. 11/12, 48-59 - 48-59.

2006

  • Alexandrov, B.T.; Lippold, J.C., 2006, "In-situ weld metal continuous cooling transformation diagrams." Welding in the World 50, no. 9-10, 65-74 - 65-74.
  • Alexandrov, B.; Theis, K.; Streitenberger, M.; Herold, H. et al., 2006, "Cold cracking in weldments of steel S 690 QT." Welding Research Abroad 52, no. 8, 6-15 - 6-15.

2005

  • Alexandrov, B.; Thels, K.; Streitenberger, M.; Herold, H. et al., 2005, "Cold cracking in weldments of steel S 690 QT." Welding in the World 49, no. 5-6, 64-73 - 64-73.

2004

  • Alexandrov, B.T., 2004, "Hydrogen diffusion coefficient and modelling of hydrogen behaviour in welded joints of structural steels." Welding Research Abroad 50, no. 12, 47-55 - 47-55.

2003

  • 2003, "Applicability of Index for the Microstructural Inhomogeneity of Structural Steels." Journal of Materials Science and Technology 11, no. 1,

2002

  • 2002, "Welding and Testing of Liquefied Gas Containers." Scientific News 9,
  • 2002, "Evaluation of Susceptibility to Cold Cracking during Laser Beam Welding of High Strength Steels." Machine-building Technologies 51, no. 1,
  • 2002, "In-situ CCT Diagrams in HAZ of Low Alloy Structural Steels." Scientific News 9,
  • 2002, "In-situ Investigation of the Phase Transformations in Ferritic Weld Metal." Scientific News 9,

2000

  • 2000, "Hydrogen Behaviour and Testing Duration by the Methods SIV 19 HT and Implant Test." Machine-building 50, no. 2/3,

1993

  • Velkov, K.; Aleksandrov, B., 1993, "Equipment for examining kinetics of desorption of diffusible hydrogen from a welded joint." Welding International 7, no. 7, 557-559 - 557-559.

1992

  • 1992, "Device for Investigating the Kinetics of Diffusible Hydrogen Effusion from Welded Joints." Welding Production 64, no. 2,

1989

  • 1989, "Behaviour of Hydrogen in Heat Affected Zone during Welding of Steel 23G2SAF." Wiss. Z. Uniwersitat Rostock 38, no. 7,
  • 1989, "Procedure and Equipment for Controlled Electrolytic Charging with Hydrogen." Technical Ideas 42, no. 1,

Unknown

  • 31. Alexandrov, B.T.; Alexandrov, B.T., "Hydrogen Diffusion Coefficient and Modelling of Hydrogen Behavior in Welded Joints of Structural Steels." Welding in the World 47, no. 9/10,