高温设备和构件的蠕变损伤和断裂研究进展

对高温设备和构件的失效模式和影响因素进行了介绍 ,概述了高温蠕变损伤和断裂理论的研究状况 ,对高温裂纹扩展的控制参量及其应用进行了描述。为了准确地预测构件的寿命 ,保证高温装置的安全运行 ,提出应将损伤力学理论和断裂力学研究相结合、宏观断裂力学研究和微观断裂机理研究相结合 ,对高温设备损伤断裂全过程进行深入研究

Research Progress of the Creep Damages and Fractures of High Temperature Equipment and Components

The failure modes and influential factors of high temperature equipment and components were presented, an outline was given of the research state of high temperature creep damages and fracture theory, the control parameters of high temperature crack growth and their applications were described. In order to predict accurately the service life of components and ensure the safety operation of the high temperature plants, a deep research should be performed of the whole process of damages and fractures of high temperature equipment with the combination of damage mechanics theory and fracture mechanics research, and the combination of macro fracture mechanics research and macro fracture mechanism research.