Influence of the cross-sectional shape of tensile barson their creep rupture strength in a corrosive mediumстатья
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Статья опубликована в журнале из перечня ВАК
Статья опубликована в журнале из списка Web of Science и/или Scopus
Дата последнего поиска статьи во внешних источниках: 6 февраля 2017 г.
Аннотация:Abstract: The creep rupture strength of tensile bars in a corrosive medium is studied. The time
to failure of the bars is analyzed as a function of their cross-sectional shape. It is shown that the
influence of the corrosive medium on the creep rupture strength of the bars is determined by the
diffusion of its elements into the bar material, resulting in a decrease in its creep rupture strength.
The diffusion of the corrosive medium into a bar is studied using an approximate method for solving
the diffusion equation taking into account the motion of the diffusion front. Bars with different
cross-sectional shapes are considered using Rabotnov kinetic theory. It is shown that at the same
tensile stress, the bar with a circular cross-section has minimum time to failure.
Keywords: bars, creep rupture strength, time to failure, damage, corrosive medium, diffusion
front.