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Explore the many uses for nuclear science and its impact on energy, the environment, healthcare, food, and more.
Division Spotlight
Operations & Power
Members focus on the dissemination of knowledge and information in the area of power reactors with particular application to the production of electric power and process heat. The division sponsors meetings on the coverage of applied nuclear science and engineering as related to power plants, non-power reactors, and other nuclear facilities. It encourages and assists with the dissemination of knowledge pertinent to the safe and efficient operation of nuclear facilities through professional staff development, information exchange, and supporting the generation of viable solutions to current issues.
Meeting Spotlight
Conference on Nuclear Training and Education: A Biennial International Forum (CONTE 2025)
February 3–6, 2025
Amelia Island, FL|Omni Amelia Island Resort
Standards Program
The Standards Committee is responsible for the development and maintenance of voluntary consensus standards that address the design, analysis, and operation of components, systems, and facilities related to the application of nuclear science and technology. Find out What’s New, check out the Standards Store, or Get Involved today!
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Nuclear Science and Engineering
February 2025
Nuclear Technology
January 2025
Fusion Science and Technology
Latest News
Reboot: Nuclear needs a success . . . anywhere
The media have gleefully resurrected the language of a past nuclear renaissance. Beyond the hype and PR, many people in the nuclear community are taking a more measured view of conditions that could lead to new construction: data center demand, the proliferation of new reactor designs and start-ups, and the sudden ascendance of nuclear energy as the power source everyone wants—or wants to talk about.
Once built, large nuclear reactors can provide clean power for at least 80 years—outlasting 10 to 20 presidential administrations. Smaller reactors can provide heat and power outputs tailored to an end user’s needs. With all the new attention, are we any closer to getting past persistent supply chain and workforce issues and building these new plants? And what will the election of Donald Trump to a second term as president mean for nuclear?
As usual, there are more questions than answers, and most come down to money. Several developers are engaging with the Nuclear Regulatory Commission or have already applied for a license, certification, or permit. But designs without paying customers won’t get built. So where are the customers, and what will it take for them to commit?
R. L. Klueh
Nuclear Technology | Volume 57 | Number 1 | April 1982 | Pages 114-124
Technical Paper | Material | doi.org/10.13182/NT82-A16191
Articles are hosted by Taylor and Francis Online.
Commercially, Cr—1 Mo steel is used in various heat-treated conditions. Present designs for breeder reactor steam generators call for the steel to be used in an annealed or iso thermally annealed condition. Future reactor steam generators may offer an incentive to use a normalized-and-tempered steel. The elevated-temperature mechanical property differences between the normalized-and-tempered and annealed or iso thermally annealed conditions were assessed to determine the advisability of using the normalized-and-tempered material for breeder reactor steam generators. The mechanical properties of Cr—1 Mo steel are determined by the micro structure, which can be different for annealed and normalized-and-tempered steel The extreme in microstructural difference is when the normalized-and-tempered steel is entirely bainite and the annealed steel is 75 to 80% proeutectoid ferrite, the balance bainite. Mechanical property data for annealed and normalized-and-tempered Cr—1 Mo steel with these microstructures were compared. The results were analyzed in terms of the kinetics of the different metallurgical changes that the various microstructures undergo during an elevated-temperature test or elevated-temperature exposure during service. It was concluded that Cr—1 Mo steel could be used in all heat treatments that are presently used in commercial practice.
