Staehle Consulting, Principal, Roger W. Staehle, Ph.D., NAE
Approaching and resolving your questions Background and contributions to corrosion science Professional emphasis Facilities Downloads Contact
Advancements in corrosion science Selected Publications Expert witness Nuclear Power International Community Office Staff Analytical technologies
Nuclear power
  • Worked in nuclear power since 1957 when he was an engineer for Naval Reactors program responsible for fuel cladding and fuels.
  • Attended reactor school at Bettis: “learn everything about everything in nuclear power.”
  • Founder and chairman of Corrosion Advisory Committee (CAC) for Electric Power Research Institute (EPRI). 
  • Technology of BWR, PWR, PHWR plants.
  • Failure of welds in BWR pressure vessels and piping. 
  • Fires in nuclear plants.
  • Research supported by AEC, Edison Electric Institute, EPRI, NRC.
  • Co-chairman with H. Okada of Nippon Steel of U.S.-Japan meeting at Fujiyama on subject of predicting corrosion performance in nuclear plants. View of Mount Fuji and cherry blossams.
  • Member of projects on “Pro-active” assessment committees concerned with preventing premature failures in nuclear plants:  USNRC sponsored the first PMDA (Proactive Materials Degradation Assessment) 2004-2006; PMDM (Proactive Materials Degradation Management)  Fracture and Reliability Research Institute, Tohoku University 2007-present; EPMDA, 2010-present—sponsors United State Department of Energy and United State Nuclear Regulatory Commission.

Members of USNRC PMDA committee.

  • Consultant on projects concerned with storage of radioactive waste for Japan and for the United States at Yucca Mountain.  Demonstrated that the C-22 alloy chosen by DOE as a container material was not adequate and readily sustains SCC.
  • Principal organizer of focus meetings: initiation of SCC; cold work effects on SCC; combined effects of lead and sulfur impurities; prediction of SCC; properties of heat transfer crevices.
  • Principal chairman and organizer of the QMN “Quantitative Micro-Nano” yearly forum for developing atomistic approaches to predicting SCC in nuclear plants.
  • Author of PPT show “Rickover and Reliability” invited lecture at 2009 meeting of Canadian Nuclear Society.
  • Consultant on cracked feeder tubes for HWPRs.
  • First to identify SCC in stainles steel piping in a BWR plant.
  • Consultant on SCC and creep failure occuring at feeder tube fabricated from carbon steel in a Point Lepreau, Canada, plant.

SCC and creep failure occuring at feeder tube fabricated from carbon steel

  • Consultant on SCC of steel piping in tertiary systems.

SCC steep piping in tertiary systems