ABOUT CERTAIN BEHAVIORIAL PATTERNS OF THERMAL FATIGUE,
Abstract
The startup, shutdown and load-adjustment of various types of power generating equipment often involve thermal stresses and deformations induced by the attendant restriction of temperature-induced expansion. The repeated action of thermal stresses causes cracking and fracture of the material of an equipment element. This type of fatigue fracture is termed thermal fatigue. Of major interest is a comparison of the behavior of materials according to the results of their tests by various methods on taking into account various approaches to estimating resistance to thermal fatigue. Hence the steels EI-852, EI-853, EI-888 and EP-38 were experimentally tested by comparing the number of cycles to fracture under the same thermal conditions (within the same temperature range) in the presence of different mechanical conditions (by linking to the system elements of varying rigidity). (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- May 20, 1969
- Accession Number
- AD0693854
Entities
People
- V. I. Egorov
Organizations
- National Air and Space Intelligence Center