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Annotation
В данной работе представлены результаты исследований влияния микроструктуры на сопротивление хрупкому разрушению в зоне сварного соединения труб большого диаметра из высокопрочных сталей категории прочности К60; получены и проанализированы результаты испытаний на ударный изгиб, проведен качественный анализ микроструктуры, выявлены причины появления нестабильных значений ударной вязкости.
This paper contains the results of a studies of the effect of the microstructure on the toughness in the welded joint of the large diameter pipes made of high-strength pipe steels K60; obtained and analyzed the results of tests on impact bending; performed qualitative analysis of the microstructure; identify the causes of the appearance of unstable toughness properties.
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