CVDA-84《压力容器缺陷评定规范》主要是针对压力容器常见失效方式,如脆断、疲劳、泄漏和塑性失稳等给出较具体的评定方法,同时也对压力容器的应力腐蚀、腐蚀疲劳、蠕变和蠕变疲劳给出一般性的指导原则。不管是哪种失效形式,其安全评定的基础数据都是:缺陷的性质、尺寸(尤其是缺陷在容器壁厚方向上的自身高度和深度)、形状和方位等。由于缺陷不同,处理方法也不同;对不同位置的表面缺陷、埋藏缺陷和穿透缺陷的计算公式和 CVDA-84 “Pressure Vessel Defects Evaluation Criteria” is mainly aimed at the common failure modes of pressure vessels, such as brittle fracture, fatigue, leakage and plastic instability, giving more specific assessment methods, but also the pressure vessel stress corrosion, corrosion fatigue Creep and creep fatigue gives general guidelines. Regardless of the type of failure, the basic data of the safety assessment are: the nature and size of the defect (in particular, the height and depth of the defect in the direction of the wall thickness of the container), shape and orientation. Due to different defects, the treatment is also different; different positions of the surface defects, burial defects and penetration defects of the formula and