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Deformation and energy parameters of fracture of steel of the main gas pipelineP. O. Maruščak,
Sergey Panin,
Ulyana Polyvana,
Tomaž Vuherer,
Anna Guzanová,
Janette Brezinová, 2015, izvirni znanstveni članek
Opis: By example of steel 17G1S, the regularities in the impact fracture of Charpy specimens at normal and low temperatures are described. The relationship between the energy parameters of fracture (impact toughness) and the deformation response of the material (the height of shear lips) of the specimens from the pipe steel is established. The micromechanisms of impact fracture of the material are described. At 20 °C and –30 °C, focal splitting of the material was observed on the fracture surface of specimens; at –60 °C, the material failed in a brittle manner by the mechanism of cleavage.
Ključne besede: impact toughness, main gas pipeline, failure analysis
Objavljeno v DKUM: 08.08.2017; Ogledov: 1135; Prenosov: 384
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