The characteristic distance of spheroidized steels
β Scribed by B. Strnadel; K. Mazanec
- Book ID
- 103069315
- Publisher
- Elsevier Science
- Year
- 1991
- Tongue
- English
- Weight
- 411 KB
- Volume
- 40
- Category
- Article
- ISSN
- 0013-7944
No coin nor oath required. For personal study only.
β¦ Synopsis
Ah&act-This paper pnsente a statistical method for calculation of the characteristic distance of spheroidii steels. The hitherto accepted cleavage str~ criterion has been reformulated so as to take into account possible misalignment between the stress direction and the perpendicular to a cleavage plane. The new cleavage stress criterion implies a certain limit for the angular misalignment; when the angle exceeds this limit, the initiated microcrack can no longer spread across the carbide-ferrite interface. The elementary probability of cleavage initiation, de&rmined using the stress criterion from probability densities of carbide particle sixes and misalignment angles, has been processed to establish the conditions governing calculations of the characteristic distance. This characteristic distance has been proved to grow with the temperature.
π SIMILAR VOLUMES
This contribution presents a model of cleavage crack propagation in spheroid&d steels. Microcrack initiation is considered in precipitated carbide particles when the local stress exceed cleavage strength ur of the carbide given by the Griffith criterion. A major crack is formed by microcrack linking