Events

On February 10, 2023, the Cabinet approved the "Basic Policy Toward the Realization of GX (Green Transformation): A Roadmap for the Next 10 Years," based on the results of discussions at the GX Executive Council established in the Cabinet Office. The roadmap clearly states the policy to work on the development and construction of next-generation innovative reactors that incorporate new safety mechanisms as part of the decarbonization efforts toward GX, which is based on the major premise of ensuring a stable energy supply. Furthermore, plans for five types of nuclear power generation systems were set as goals and strategies: advanced light water reactor, small modular reactor, fast reactor, high temperature gas cooled reactor, and nuclear fusion. The development of material strength standard for non-nuclear components such as thermal power plants require the evaluation of creep strength for long periods of time as long as 100,000 hours (about 11 years and 5 months). However, unlike light water reactors, which have relatively low operating temperatures, the design of fast reactors and high-temperature gas cooled reactors, operated at the elevated temperatures where creep deformation should be considered, require creep strength property evaluation over an extremely long time period of 500,000 hours which is more than half a century corresponding to the reactor's design life of 60 years. In this presentation, I will describe the 500,000-hour material strength standard for 9Cr-1Mo-V steel, which was established in the ASME Boiler and Pressure Vessel Code.

Abstract is not available.

■After the event, we received responses to our survey from about half of the participants.

We received the following ratings for reasons of satisfaction.
・It was very interesting to hear.
・Easy to understand and interesting.
・Very informative.
・I recognized the importance of standardization and standardization.
・I was impressed by the current status of pioneering activities at NIMS and the presentation of next-generation research guidelines for the future.
・I was able to learn about examples of effective use of JIS standards in the private sector, which I had not seen before.
・I thought Kano's talk was very illuminating about future implementations.
・Mr. Kimura's lecture directly links the significance of materials research and standardization activities, and as a genuine experience, it is extremely meaningful and rare in Japan for someone to be so well versed in the field.

■In addition, the following responses were received regarding lectures they would like to see featured in future seminars.
・I would like to know more examples of good practice in standardization and open-close strategies.
・Prospects for research on next-generation heat-resistant alloys, etc.
・How is NIMS creep data used in actual equipment?