Materials Strength Standard and Technology Group

2022.04.28 Update

Abstract

We contribute to modification of codes and standards based on research findings for materials strength. The modification of codes and standards can contribute to making secure and safe society. In order to improve code and standard of power plants, long-term creep strength and microstructure of crept specimens are evaluated based on NIMS Creep Data Sheets. In future, we will contribute to modification of codes and standards based on research findings of fatigue, fracture, corrosion and stress corrosion cracking in cooperation with other research groups.




Specialized Research Field

Specialized Research Field
  1. Evaluation of creep strength of high Cr steel welds
    In order to improve reliability, operation and maintenance of welds, long-term creep strength is evaluated for high Cr steel welds, using large specimens.
  2. Heat-to-heat variation of long-term creep strength of heat resistant steels
    In order to control the quality of the Grade 91 steel, the reason for the heat-to-heat variation of long-term creep strength should be clarified. Heat-to-heat variation of microstructural change during creep is investigated in Grade 91 steels in cooperation with industries.
  3. Residual life assessment of heat resistant steels Methodology of prediction of metal temperature is investigated based on microstructural features in austenitic heat resistant steels.
Related academic society
  • JSME Committee on Power Generation Facility Codes
  • High Pressure Institute of Japan, Committee on Pressure Vessel Codes and Standards
  • ASME Boiler and Pressure Vessel Committee


Inquiry about this page

Materials Strength Standard and Technology Group
1-2-1 Sengen, Tsukuba-city
Ibaraki 305-0047 JAPAN
E-Mail: SAWADA.Kota=nims.go.jp(Please change "=" to "@")