학술논문
J0310302 Q^*コンセプトに基づいた溶接材を含むP91鋼およびP92鋼のクリープき裂発生寿命則 / J0310302 The creep crack initiation life for P91 and P92 steels including welded material based Q^* concept
Document Type
Journal Article
Author
Source
The Proceedings of Mechanical Engineering Congress, Japan. 2015, :0310302
Subject
Language
Japanese
ISSN
2424-2667
Abstract
Heat-resistant steels used in thermal power plant require periodic inspections for safely operation. In order to determine the period of inspection interval, it is necessary to predict not only creep crack growth life, but also creep crack initiation life, which is the time when crack length takes some specified value. Furthermore, it is also necessary to evaluate not only the life of base metals but also that of weld joints which are contained in actual structures. In this research, the life of creep crack initiation for both of base metals and weld joints are evaluated.