Materials Reliability Unit
Environment and Energy Materials Division

Time-dependent degradation of materials due to creep, fatigue, hydrogen embrittlement, stress corrosion cracking and so on, causes trouble of machine structures. Number of long-term serviced plants and machines is increasing, and longer life with higher performance design of modern equipment requires more severe service condition of materials. It is important for safety, therefore, to improve reliability of structural materials. This unit is assigned to conduct studies on measurement, analysis, assessment and prediction of time-dependent degradation behavior of structural materials.