Autor: L. I. Mikhodui, V.D. Poznyakov, V. E. Danil'chenko, S. B. Kasatkin, A. A. Sergienko, V. I. Bondar, P. A. Strizhak, V. G. Gordonnyi
Rok vydání: 2003
Předmět:
Zdroj: Strength of Materials. 35:200-205
ISSN: 0039-2316
DOI: 10.1023/a:1023774831087
Popis: Local plastic strains, which develop at the initial stages of delayed fracture of the heat-affected zone of high-strength low-alloy 14KhGN2MDAFB steel with σ0.2 ≥ 700 MPa, have been investigated using x-ray diffraction analysis. It has been found that the local plastic strain values increase with time of holding under long-term loading. In this case, the maximum local plastic strain occurs in the vicinity of the fatigue crack tip. The kinetics of the local plastic strain development during thermal cycling is affected by the specimen cooling rate W6/5.
Databáze: OpenAIRE