Analysis of creep damage in main steam piping components of power stations. (4th August 2014)

• Record Type: Journal Article
• Authors: Bendick, W.; Weber, H.
• Is Part Of: International journal of material & product technology. Volume 4:Number 1(1989)
• Page Start: 71
• Page End: 80
• Publication Date: 2014-08-04
• Subjects: creep damage -- component lifetime -- fracture -- inspection -- metal piping -- non–destructive testing -- NDT -- power stations -- risk estimation -- steam piping -- safety risk -- leakage; Manufacturing processes -- Periodicals; Materials -- Testing -- Periodicals; 620.11
• Languages: English
• ISSNs: 0268-1900

Abstract

The fracture behaviour of components is influenced by damage mechanisms and service conditions. A classification of components with respect to safety risk and availability is possible. According to this classification nondestructive test methods can be chosen in a reasonable manner. Material damage causes a degradation of material properties. For this reason, and because of a lack of calculation methods, a continuation of service in the tertiary creep range cannot be recommended. This is especially important for components for which leakage before fracture cannot be presumed.