| Autor: |
Maruschak, Pavlo, Bishchak, Roman, Panin, Sergey, Pylypenko, Andriy, Menou, Abdellah, Danyliuk, Iryna |
| Předmět: |
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| Zdroj: |
AIP Conference Proceedings; 2014, Vol. 1623, p399-402, 4p, 1 Chart, 1 Graph |
| Abstrakt: |
General regularities in the failure kinetics of steel of main gas pipelines (17GS) are established using the method of complete stress-strain curves, meanwhile in-service degradation of metals is taken into account. The influence of material degradation on material properties under static tensioning is considered using two independent approaches: the phenomenological model of damage accumulation in metals, and the fractographic analysis method. The accumulation of in-service damage is found to increase a degree of material opening and lead to partial "embrittlement" of the steel matrix due to the microdefects accumulation in the vicinity of metal cracking caused by hydrogenation. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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