Bio


Siegfried S. Hecker is a professor (research) in the Department of Management Science and Engineering and a senior fellow at CISAC and FSI. He is also an emeritus director of Los Alamos National Laboratory. He was co-director of CISAC from 2007-2012.

Hecker's research interests include plutonium science, nuclear weapons policy and international security, nuclear security (including nonproliferation and counter terrorism), and cooperative nuclear threat reduction. Over the past 21 years, he has fostered cooperation with the Russian nuclear laboratories to secure and safeguard the vast stockpile of ex-Soviet fissile materials.

His current research activities focus on the challenges of nuclear India, Pakistan, North Korea, and the nuclear aspirations of Iran. Hecker works closely with the Russian Academy of Sciences and is actively involved with the U.S. National Academies.

Hecker joined Los Alamos National Laboratory as graduate research assistant and postdoctoral fellow before returning as technical staff member following a tenure at General Motors Research. He led the laboratory's Materials Science and Technology Division and Center for Materials Science before serving as laboratory director from 1986 through 1997, and senior fellow until July 2005.

Among his professional distinctions, Hecker is a member of the National Academy of Engineering; foreign member of the Russian Academy of Sciences; fellow of the TMS, or Minerals, Metallurgy and Materials Society; fellow of the American Society for Metals; fellow of the American Physical Society, honorary member of the American Ceramics Society; and fellow of the American Academy of Arts and Sciences.

His achievements have been recognized with the Presidential Enrico Fermi Award, the American Nuclear Society's Seaborg Medal, the Department of Energy's E.O. Lawrence Award, the Los Alamos National Laboratory Medal, among other awards including the Alumni Association Gold Medal and the Undergraduate Distinguished Alumni Award from Case Western Reserve University, where he earned his bachelor's, master's, and doctoral degrees in metallurgy.

Academic Appointments


Administrative Appointments


  • Co-Director, Center for International Security and Cooperation (2007 - 2012)

Boards, Advisory Committees, Professional Organizations


  • Member, National Academy of Engineering (2013 - Present)
  • Member, American Academy of Arts and Sciences (2013 - Present)

Professional Education


  • PhD, Case Western Reserve (1968)

Current Research and Scholarly Interests


plutonium science; nuclear weapons stockpile stewardship; cooperative threat reduction

2013-14 Courses


Postdoctoral Advisees


Journal Articles


  • Iran’s Path to Nuclear Peace Op-Ed in The New York Times, Web and Print (Appeared in Print in International New York Times on January 10, 2014). Hecker, Siegfried, S., Perry, William, J. 2014
  • A nuclear energy program that benefits the Iranian people The Bulletin of Atomic Scientists Hecker, Siegfried, S., Milani, A. 2014
  • Seoul’s Nuclear Weapon is the U.S. The New York Times: Room for Debate Hecker, Siegfried, S., Sagan, Scott, D. 2013
  • Final Report on Nuclear Energy and Nuclear Security in the Republic of Korea CISAC Published Report Hecker, Siegfried, S., Braun, C., Davis, P., Forrest et al, R. 2013
  • North Korea reactor restart sets back denuclearization The Bulletin of Atomic Scientists Hecker, Siegfried, S. 2013
  • What to expect from a North Korea nuclear test Foreign Policy Hecker, Siegfried, S. 2013
  • Hecker replies PHYSICS TODAY Hecker, S. S. 2012; 65 (2): 9-10
  • Dealing with North Korea’s Nuclear Program American Academy of the Arts and Sciences Bulletin Hecker, Siegfried, S., Bosworth, S., Miller, S. 2012; LXV (4)
  • North Korea in 2011: Countdown to Kim il-Sung's centenary BULLETIN OF THE ATOMIC SCIENTISTS Hecker, S. S., Carlin, R. 2012; 68 (1): 50-60
  • Testimony in Hearing of the Subcommittee on Strategic Forces Arms Services Committee of the House of Representatives on “Governance, oversight and management of the Nuclear Security Enterprise to ensure High Quality Science, Engineering and Mission Effectiveness in an Age of Austerity Hecker, Siegfried, S. 2012
  • North Korea in 2011: Countdown to Kim il-Sung’s centenary The Bulletin of Atomic Scientists Hecker, Siegfried, S., Carlin, R. 2012
  • North Korea from 30,000 Feet The Bulletin of Atomic Scientists Milonopoulos, N., Hecker, Siegfried, S., Carlin, R. 2012
  • Contemplating a third nuclear test in North Korea The Bulletin of Atomic Scientists Pabian, F., Hecker, Siegfried, S. 2012
  • Adventures in scientific nuclear diplomacy PHYSICS TODAY Hecker, S. S. 2011; 64 (7): 31-37
  • What I found in Yongbyon and Why It Matters American Physical Society Hecker , S. S. 2011; 40 (2)
  • North Korea’s Light Water Reactor Ambitions Journal of Nuclear Materials Management, Spring Edition, (this article is a slightly changed version of the Russian-language article in Nuclear Club Journal). Hecker, Siegfried, S., Braun, C., Carlin, Robert, L. 2011; XXXIV (3): 18-25
  • Extraordinary Visits: Lessons Learned from Engaging with North Korea Nonproliferation Review Hecker, Siegfried, S. 2011; 18 (2): 445-455
  • Visiting North Korea: Q&A with Siegfried Hecker Physics Today.org Singularities Hecker, S. 2011
  • Nuclear promise or nuclear peril? MRS BULLETIN Hecker, S. S. 2010; 35 (10): 726-732
  • EDWARD TELLER RETURNS TO LOS ALAMOS EDWARD TELLER CENTENNIAL SYMPOSIUM Hecker, S. S. 2010: 4-12
  • Where is North Korea's Nuclear Program Heading? Physics & Society Hecker , S. S. 2010; 40 (2)
  • North Korea's Choice: Bombs Over Electricity The Bridge Hecker, S. S., Lee, S., Braun , C. 2010; 40 (2)
  • Lessons learned from the North Korean nuclear crises DAEDALUS Hecker, S. S. 2010; 139 (1): 44-56
  • What I found in North Korea: Pyongyang’s Plutonium Is No Longer the Only Problem. Foreign Affairs Hecker, Siegfried, S. 2010
  • Redefining denuclearization in North Korea The Bulletin of the American Scientists Hecker, Siegfried, S. 2010
  • Smart Power Nuclear Diplomacy,’ Office of Science & Technology, Embassy of Austria, Bridges Online Magazine Hecker, Siegfried, S. 2010; 25
  • North Korea’s Choice: Bombs over Electricity National Academy of Engineering, The Bridge Hecker, Siegfried, S., Lee, S., Braun, C. 2010: 5-12
  • North Korea's Yongbyon Nuclear Complex: A Report by Siegfried S. Hecker Center for International Security and Cooperation Hecker, Siegfried, S. 2010
  • North Korea’s Reactors: Past, Present and Future (in Russian language) Nuclear Club Journal Hecker, Siegfried, S., Braun, C., Carlin, Robert, L. 2010: 25-33
  • The risks of North Korea’s nuclear restart Bulletin of the Atomic Scientists Hecker, Siegfried, S. 2009
  • From Pyongyang to Tehran, with Nukes Foreign Policy Hecker, Siegfried, S. 2009
  • Denuclearizing North Korea BULLETIN OF THE ATOMIC SCIENTISTS Hecker, S. S. 2008; 64 (2): 44-?
  • Preventing nuclear weapon proliferation as nuclear power expands MRS BULLETIN Hecker, S. S. 2008; 33 (4): 340-342
  • Plutonium: An element never at equilibrium Metallurgical and Materials Transactions A Hecker, Siegfried, S. 2008; 39 (7): 1585-1592
  • The Right Path with North Korea Op-ed, Washington Post Siegfried, William, S., Hecker 2008
  • Preventing Nuclear Weapon Proliferation as Nuclear PowerExpands MRS Bulletin Hecker, Siegfried, S. 2008: 33
  • Dangerous Dealings: North Korea’s Nuclear Capabilities and the Threat of Export to Iran Arms Control Today Hecker, Siegfried, S., Liou, W. 2007; 37: 6-11
  • Dangerous Dealings: North Korea's Nuclear Capabilities and the Threat of Export to Iran Arms Control Today Hecker, S. S., Liou , W. 2007; 37 (2)
  • Plutonium and Plutonium Compounds Kirk-Othmer Concise Encyclopedia of Chemical Technology, 5th Edition. Clark, David, L., Hecker, Siegfried, S., Jarvinen, Gordon, D., Neu, Mary, P. 2007
  • Diplomacy Can Reduce North Korea's Nuclear Threat Aviation Week & Space Technology Hecker, Siegfried, S. 2007: 66
  • Toward a comprehensive safeguards system: Keeping fissile out materials of terrorists' hands ANNALS OF THE AMERICAN ACADEMY OF POLITICAL AND SOCIAL SCIENCE Hecker, S. S. 2006; 607: 121-132
  • Dr. Smith Goes to Los Alamos: Cyril Stanley Smith, Plutonium Metallurgy, and the Manhattan Project Resonance Srinivasan, S., G., Hecker, S., S., Follansbee, P., S., Baskes, M., I. 2006: 6-23
  • Mechanical behavior of delta-phase plutonium alloys. Part I: Constitutive Model J. Nucl. Mater Stout, M., G., Kaschner, G., C., Hecker, S., S. 2006; 350: 113-121
  • Mechanical behavior of delta-phase plutonium alloys. Part II: Model verification and application J. Nucl. Mater Kaschner, G., C., Stout, M., G., Hecker, S., S. 2006; 350: 122-128
  • Toward a Comprehensive Safeguards System: Keeping Fissile Materials Out of Terrorists’ Hands The Annals of the American Academy of Political and Social Science Hecker, Siegfried, S. 2006; 607: 121-132
  • Securing Nuclear Material Issues in Science and Technology, Forum Section. Hecker, S., S. 2005; 21 (3)
  • A Tribute to Terence E. Mitchell Metallurgical and Materials Transactions Hecker, S., S. 2004; 35A: 2203-2205
  • Atoms for Peace Issues in Science and Technology, Forum Section. Hecker, S., S. 2004
  • Comment on “Improving U.S. - Russia Nuclear Cooperation Issues in Science and Technology, the Forum Section Hecker, S., S. 2004
  • The Magic of Plutonium: 5f Electrons and Phase Stability Metallurgical and Materials Transactions Hecker, S., S. 2004; 35A: 2207-2221
  • The Nuclear Crisis in North Korea The Bridge, National Academy of Engineering Hecker, S., S. 2004: 17-23
  • The Nuclear Crisis in North Korea MRS Bulletin Hecker, S., S. 2004; 29 (11): 782-785
  • Phase Stability and Phase Transformation in Pu-Ga Alloys Progress in Materials Science, A Festschrift Volume in honor of T.B. Massalski Hecker, S., S. 2004; 49: 429-485
  • Plutonium: Coping with Instability Journal of Metals Hecker, S., S. 2003; 55 (9): 13-18
  • A Tribute to Zachary Fisk Physica B Hecker, S., S. 2002; 318: 57-60
  • High-Impact Terrorism: Proceedings of a Russian-American Workshop National Research Council of the National Academies S., G., S., Hecker 2002
  • The Complex World of Plutonium Science MRS Bulletin Hecker, S., S. 2001; 26 (9): 672-678
  • Thoughts about an Integrated Strategy for Nuclear Cooperation with Russia The Nonproliferation Review Hecker, S., S. 2001: 1-24
  • Plutonium and Its Alloys: From Atoms to Microstructure Los Alamos Science Hecker, S., S. 2000: 290-335
  • Aging of Plutonium and Its Alloys Los Alamos Science Hecker, S., S., Martz, J., C. 2000: 238-243
  • Plutonium Science Challenges Future Researchers The Actinide Research Quarterly, Los Alamos National Laboratory Hecker, S., S. 2000
  • Mechanical Behavior of Plutonium and its Alloys Los Alamos Science Hecker, S., S., Stevens, M., F. 2000: 336-355
  • Los Alamos Science Staff, “Plutonium: A Historical Overview,” LosAlamos Science Hecker, S., S. 2000: 3-47
  • A Tale of Two Diagrams Los Alamos Science Hecker, S., S., Timofeeva, L., F. 2000: 244-251
  • An Investigation of Plastic Flow and Differential Work Hardening on Orthotropic Brass Tubes Under Fluid Pressure and Axial Load Int. J. Solids Struct. Hill, R., Hecker, S., S., Stout, M., G. 1994; 31: 2999-3021
  • Actinides: From Heavy Fermions to Plutonium Metallurgy Physica Smith, J., L., Fisk, Z., Hecker, S., S. 1985; 130B: 151-158
  • Plutonium - A Wartime Nightmare Buta Metallurgist’s Dream Los Alamos Science Baker, R., D., Hecker, S., S., Harbur, D., R. 1983; 4: 142-151
  • An Evaluation of Anisotropic EffectiveStress—Strain Criteria for the Biaxial Yield and Flow Behavior of 2024 AluminumTubes Transactions of the ASME. Journal of Engineering Materials and Technology Stout, M., G., Hecker, S., S., Bourcier, R. 1983; 105 (4): 242-9
  • Large-Strain Plastic Deformation of Commercially-Pure Nickel Metal Science Zimmer, W., H., Hecker, S., S., Rohr, D., L., Murr, L., E. 1983; 17: 198-206
  • An X-ray Diffraction Study of the δ→α Transformation in a Pu -2.0 at% Al Alloy J. Nucl. Materials Zukas, E., G., Hecker, S., S., Pereyra, R., A. 1983; 115: 63-68
  • Fracture Strains in Biaxially Loaded 2024 Aluminum Tubes Mechanics of Material Stout, M., G., Hecker, S., S. 1983; 2: 19—22
  • Theory of Saturation Stress Difference in Torsion Versus Other Types of Deformation at Low Temperature J. Mechanics of Materials, Mechanics of Materials. Weertman, J., Hecker, S., S. 1983; 2 (2): 89-101
  • Nucleation and Evolution of Strain-Induced Martensitic (B.C.C.) Embryos and Substructure in Stainless Steel: A Transmission Electron Microscope Study Acta Met. Staudhammer, K., P., Murr, L., E., Hecker, S., S. 1983; 21: 267-274
  • The Effect of Hydrogen Onthe Multiaxial Stress-Strain Behavior of Titanium Tubing Met. Trans. Lentz, C., W., Koss, D., A., Stout, M., G., Hecker, S., S. 1983; 14A: 2527—2533
  • Role of Geometry in Plastic Instability of Tubes and Sheet Mechanics of Materials Stout, M., G., Hecker, S., S. 1983; 2: 23—31
  • Response to Discrepancy Between SimpleModel for Strain-Induced Softening in Eutectics and High-Pressure Experiment Phys. Rev. Letters Suhl, H., Hecker, S., S., Smith, J., L. 1982; 48: 962
  • Effects of Strain State and Strain Rate on Deformation—Induced Transformation in 304 Stainless Steel:Part II. Microstructural Study Met. Trans. Murr, L., E., Staudhammer, K., P., Hecker, S., S. 1982; 13A: 627
  • Effects of Strain State and Strain Rate on Deformation—Induced Transformation in 304 Stainless Steel: Part I. Magnetic Measurements and Mechanical Behavior Met. Trans. Hecker, S., S., Stout, M., G., Staudhammer, K., P., Smith, J., L. 1982; 13A: 619
  • Multiaxial Loading of Large-Diameter, Thin-WalledTube Rock Specimens Geophysical Research Letters Hecker, S., S., Petrovic, J., J. 1981; 8: 703
  • Strain-Induced Softening of Certain Eutectics Phys. Rev. Letters Suhl, H., Matthias, B., T., Hecker, S., S., Smith, J., L. 1980; 45: 1707
  • Quantitative Evidence for Dislocation Emission from Grain Boundaries Scripta Met. Murr, L., E., Hecker, S., S. 1979; 13: 167
  • Brittle Fracture in Polycrystalline Ir-O.3% W Met. Trans. Rohr, D., L., Murr, L., E., Hecker, S., S. 1979; 10A: 399
  • Brittle Fracture in Iridium Met.Trans. Hecker, S., S., Rohr, D., L., Stein, D., F. 1978; 9A: 481
  • The Forming of Sheet Metal Scientific American Hecker, S., S., Ghosh, A., K. 1976; 235: 100
  • Experimental Studies of Yield Phenomena in Biaxially Loaded Metals in CONSTITUTIVE EQUATIONS IN VISCOPLASTICITY: COMPUTATION AND ENGINEERING ASPECTS, Am. Soc. Mech. Engrs. Hecker, S., S. 1976: 1-33
  • A Simple Technique for Determining Forming Limit Curves Sheet Metal Industries Hecker, S., S. 1975: 671-676
  • Failure of Thin Sheets Stretched Over Rigid Punches Met. Trans. Ghosh, A., K., Hecker, S., S. 1975; 6A: 1065-1074
  • Formability of Aluminum Alloy Sheets J. Eng. Mat. and Tech. Hecker, S., S. 1975; 97: 66-73
  • A Reproducible Cup Test for Assessing Sheet Metal Stretchability Met. Engng. Quart. 14 Hecker, S., S. 1974
  • Fracture Surfaces of High-Strength Low-Alloy Steel Sheets Met. Trans. Hecker, S., S. 1974; 5: 2107
  • Stretching Limits in Sheet Metals: In-Plane Versus Out-of-Plane Deformation Met. Trans. Ghosh, A., K., Hecker, S., S. 1974; 5: 2161
  • Formability of High—Strength Low Alloy Steel Sheets Metals Engng. Quarterly Hecker, S., S. 1973; 13: 42
  • The Influence of Deformation History on the Stress-Strain and Yield Surface Behavior of Aluminum and Copper Met. Trans. Hecker, S., S. 1973; 4: 985
  • Experimental Investigation of Corners in the Yield Surface Acta Met. Hecker, S., S. 1972; 13: 69
  • A Fabrication Method for Thin-Walled Tubular Test Specimens Microtecnic Hecker, S., S. 1971; 25: 49
  • Mechanical Behavior of Uniaxial Loading Multi-layered Cylindrical Composites J. Basic Engng. Ser. D Hamilton, C., H., Hecker, S., S., Ebert, L., J. 1971; 93: 661
  • Yield Surfaces in Prestrained Aluminum and Copper Met. Trans. Hecker, S., S. 1971; 2: 2077
  • Comparison of Residual Stress Effects on the Yielding and Fracture of Metal and Glass Composites J. Mat. Science Hecker, S., S., Cooper, A., R. 1970; 5: 1011
  • Elastoplastic Analysis of Residual Stresses and Axial Loading in Composites J. Materials Hecker, S., S., Hamilton, C., H., Ebert, L., J. 1970; 5: 868
  • Improved Fiber Composite Tensile Performance by Mechanical Residual Stress Relief Trans. ASM Hecker, S., S., Hamilton, C., H., Ebert, L., J. 1969; 62: 740
  • Elastic-Plastic Analysis: A Simplified Approach Scripta Met Hecker, S., S., Hamilton, C., H., Ebert, L., J. 1969; 3: 793
  • The Stress-Strain Behavior of Concentric Composite Cylinders J. Comp. Materials Ebert, J., Hecker, S., S., Hamilton, C., H. 1968; 2: 458
  • Dislocation Pile-ups in AnisotropicCrystals Phys. Stat. Sol Mitchell, T., E., Hecker, S., S., Smialek, R., L. 1965; 11: 585

Books and Book Chapters


  • Can the North Korean Nuclear Crisis Be Resolved? in Northeast Asia’s Nuclear Challenges Hecker, Siegfried, S. edited by Lee, S. H. Published by the Institute for Far Eastern Studies and Kyungnam University, Seoul, South Korea. Chapter 5. 2013: 129-161
  • A Winning Gambit: Nuclear armed states stand to gain more than they lose from CTBT ratification in Spectrum Hecker, Siegfried, S. published by the Preparatory Commission for the Comprehensive Nuclear Test Ban Treaty Organization (CTBTO). 2012: 19-23
  • Chapter 14: “Nuclear Nonproliferation” Fundamentals of Materials for Energy and Environmental Sustainability. Hecker, Siegfried, S., Englert, M., Miller, Michael, C. edited by Ginley, David, S., Cahen, D. Cambridge UP. 2012: 1
  • Nuclear non-proliferation Fundamentals of Materials for Energy and Environmental Sustainability Hecker, S. S., Englert, M., Miller , M. C. Cambridge University Press . 2011: 162-177
  • What I found in North Korea and why it matters APS News: The Back Page Hecker, Siegfried, S. Publication of the American Physical Society. 2011: 8
  • National Research Council of the National Academies, NRC Committee on Counterterrorism Challenges for Russia and the United States Countering Terrorism: Biological Agents, Transportation Networks, and Energy Systems- Summary of the workshop. Hecker et al., Siegfried, S. National Academy Press, Washington, DC. 2009: 1
  • Chapter 21 in Nuclear Safeguards, Security and Nonproliferation: Achieving Security with Technology and Policy Why We Need a Comprehensive Safeguards System to Keep Fissile Materials Out of the Hands of Terrorists Hecker, Siegfried, S. edited by Doyle, J. Elsevier, Amsterdam. 2008: 403-414
  • Plutonium and Plutonium Compounds Kirk-Othmer Encylopedia of Chemical Technology Clark, David, L., Hecker, Siegfried, S., Jarvinen, Gordon, D., Neu, Mary, P. Wiley Interscience. 2006; 5th: 677-712
  • National Research Council of the National Academies, NRC Committee on Counterterrorism Challenges for Russia and the United States Countering Urban Terrorism in Russia and the United States- Proceedings of a workshop. Hecker et al., Siegfried, S. National Academy Press, Washington, DC. 2006: 1
  • Chapter 7, Plutonium in The Chemistry of the Actinides and Transactinides Clark, David, L., Hecker, Siegfried, S., Jarvinen, Gordon, D., Neu, Mary, P. edited by Morss, Lester, R., Edelstein, Norman, M., Fuger, J. Springer, New York. 2006; 3rd: 813-1264
  • National Research Council of the National Academies, NRC Committee on Confronting Terrorism in Russia High-Impact Terrorism: Proceedings of a Russian-American Workshop. Hecker et al., Siegfried, S. National Academy Press, Washington, DC. 2002: 1
  • A Path to a Nuclear Future in NUCLEAR PHYSICAL METHODS IN RADIOECOLOGICAL INVESTIGATIONS OF NUCLEAR TEST SITES Hecker, S., S. edited by Hecker, S., S., Mason, C., F. V., Kadyrzhanov, K., K. NATO Science Series. 2000: 3-9
  • NUCLEAR PHYSICAL METHODS IN RADIOECOLOGICAL INVESTIGATIONS OF NUCLEAR TEST SITES Series 1: Disarmament Technologies. Hecker, S., S., Mason, C., F. V., Kadyrzhanov, K., K., Kislitsin, S., B. NATO Science Series. 2000; 31
  • ESSAYS ON THE FUTURE: IN HONOR OF NICK METROPOLIS Hecker, S., S., Rota, G, C. edited by Birkhaeuser, B. 2000
  • The Plastic Flow Characteristics of Uranium-Niobium Alloys as a Function of Strain Rate and Temperature in Constitutive and Damage Modeling of Inelastic Deformation and Phase Transformation Cady, C., M., Gray III, G., T., Hecker, S., S., Thoma, D., J., Korzekwa, D., R., Patterson, R., A. edited by Khan, A., S. Neat Press, Fulton, Maryland. 1998: 15-18
  • Sheet Metal Forming and Testing In Workability Testing Techniques Ghosh, A., K., Hecker, S., S., Keeler, S., P. American Society for Metals. 1984: 135—197
  • Factors Affecting Plastic Instability and Sheet Formability in Mechanical Behavior of Materials-IV Hecker, S., S. edited by Carlsson, J., Ohlson, N., G. Pergamon Press. 1984: 129-138
  • Plasticity of Metals at Finite Strain: Theory, Computation and Experiment Experiments on Plastic Defor­mation AtFinite Strains Hecker, S., S., Stout, M., G., Eash, D., T. edited by Lee, E., H., Mallett, R., L. Stanford University, Stanford, Ca.. 1982: 162—200
  • Effects of Strain Rate on Deformation-Induced Martensite in 304 Stainless Steel in Shock Waves and High-Strain Rate Phenomena In Metals Staudhammer, K., P., Frantz, C., E., Hecker, S., S., Murr, L., E. edited by Myers, M., A., Murr, L., E. Plenum Press. 1981: 1
  • FORMABILITY; ANALYSIS, MODELING AND EXPERIMENTATION Hecker, S., S., Ghosh, A., K., Gegel, H., L. TMS/AIM. 1978
  • Sheet Stretching Experiments in APPLICATIONS OF NUMERICAL METHODS TO FORMING PROCESSES Hecker, S., S. edited by Armen, H. ASME, AMD. 1978: 85—94
  • Experimental Studies of Sheet Stretchability in FORMABILITY; ANALYSIS, MODELING AND EXPERIMENTATION Hecker, S., S. edited by Hecker, S., S., Ghosh, A., K., Gegel, H., L. TSM/AIME. 1978: 150-182
  • Effects of Strain Rate on the Tensile Properties of α - and δ - stabilized Plutonium in PLUTONIUM 1975 AND OTHER ACTINIDES Hecker, S., S., Morgan, J., R. edited by Blank, H., Linder, R. North-Holland Publishing Co., Amsterdam. 1976: 697—709
  • Fracture Behavior of a Pt-30% Rh-8% W Alloy Between Room Temperature and 1300 C in MICROSTRUCTURAL SCIENCE Rohr, D., L., Hecker, S., S. edited by Filer, E., W., Hoegfeldt, J., M., McCall, J., L. Elsevier, NY. 1976: 245-262

Conference Proceedings


  • Nuclear Developments in North Korea Hecker, Siegfried, S. edited by Kang, J. 2012
  • Senator Domenici’s Nuclear Non-Proliferation Legacy Hecker, Siegfried, S. 2009
  • Nuclear Non-Proliferation Hecker, Siegfried, S. 2009
  • Properties of plutonium and its alloys for use as fast reactor fuels Hecker, S. S., Stan, M. ELSEVIER SCIENCE BV. 2008: 112-118
  • Plutonium - an element never at equilibrium Hecker, S. S. SPRINGER. 2008: 1585-1592
  • Countering Urban Terrorism in Russia and the United States- Proceedings of a workshop. Hecker et al., Siegfried, S. 2006
  • The delta to alpha-prime transformation in plutonium-gallium alloys Mitchell, J., N., Hecker, S., S., Pereyra, R., A., Pete, D., V. 2004
  • Terrorism: Reducing Vulnerabilities and Improving Responses: A U.S.-Russian Workshop Proceedings Hecker, S., S., Schweitzer, G., E. 2004
  • Terrorism: Reducing Vulnerabilities and Improving Responses- U.S.-Russian workshop proceedings. Hecker et al., Siegfried, S. 2004
  • Strengthening the US-Russian Partnership for Nuclear Nonproliferation Hecker, S., S., Laverov, N. 2003
  • Nuclear Terrorism Hecker, S., S. 2002
  • High-Impact Terrorism: Proceedings of a Russian-American Workshop Hecker, S., S., Schweitzer, G., E. 2002
  • Plutonium Ageing: From Mystery to Enigma Hecker, S., S., Martz, J., C. edited by Mallinson, L., G. 2000
  • Strain Hardening of Heavily Cold-Worked Metals Hecker, S., S., Stout, M., G. edited by Krauss, G. 1984
  • Materials Response to Large Plastic Deformation Stout, M., G., Hecker, S., S. 1983
  • Electron Microscope Study of the Genesis of Strain-Induced Martensite Embryos Staudhammer, K., P., Murr, L., E., Hecker, S., S. edited by Aaronson, H., I., Laughlin, D., E., Sekerka, R., F. 1982
  • Some Properties of Transformation Products in a Plutonium-Aluminum Alloy Zukas, E., G., Hecker, S., S., Morgan, J., R., Pereyra, R., A. edited by Aaronson, H., I., Laughlin, D., E., Sekerka, R., F. 1982
  • Pressure and Temperature Induced Transformations in a Plutonium-Aluminum Alloy Hecker, S., S., Zukas, E., G., Morgan, J., R., Pereyra, R., A. 1982
  • Comparison of Substructures Between Uniaxial AndBiaxial Deformation in 1100-0 Aluminum Rohr, D., L., Hecker, S., S. edited by Bailey, G., W. 1981
  • A TEM Study of the Evolution of Strain-Induced Martensite Staudhammer, K., P., Murr, L., E., Hecker, S., S. edited by Bailey, G., W. 1981
  • Three Surface TEM Observations of Cold Rolled 1100Aluminum Rohr, D., L., Hecker, S., S. edited by Bailey, G., W. 1981
  • Development of Substructure in 1100 Aluminum During Cold Rolling Rohr, D., L., Hecker, S., S. 1978
  • Brittle Grain Boundary Fracture in Iridium Rohr, D., L., Murr, L., E., Hecker, S., S. 1977
  • A Criterion for Plastic Instability in Punch Stretching of Thin Sheets Ghosh, A., K., Hecker, S., S. 1974
  • A Simple Forming Limit Curve Technique and Results on Aluminum Alloys Hecker, S., S. 1972
  • Automotive Applications of High-Strength Low-Alloy Steels Hecker, S., S. 1972
  • Residual Stress Effects in Oriented Fiber Composite Materials Ebert, L., J., Hecker, S., S., Hamilton, C., H. 1968