Physical modeling of extrusion and screw press processing technology for steel
Физическое моделирование комбинированного процесса экструзии и винтового прессования стали
Physical modeling of extrusion and screw press processing technology for steel
Статья в журнале
Русский
Библиогр.: с. 81 (15 назв.)
539.4.016.2
физическое моделирование; интенсивная пластическая деформация; экструзия; винтовое прессование; низколегированная сталь; прочность; пластичность; фрактограмма; излом образца; механизм разрушения; physical modeling; severe plastic deformation; extrusion; screw press; lean steel; strength; plasticity; fractography; probe break; fracture mechanism
Физика / Материаловедение
The basics of physical modeling of complex processing technology for manufacturing of ul-trafine-grained structure for high-strength materials has been delivered in the paper. The screw press process influence on extrusion process of prismatic and spiral shaped lean steel probes has been presented. This steel 09G2S is widely used for vital structures in permafrost regions of Central Yakutia. On the base offrac tograms ofprobe breaks the reasons of high strength and low plasticity ofprocessed steel have been qualitatively interpreted. The ductile fracture mechanism of processed steel probes after the extrusion and screw pressing is characterized by more pronounced of surface microrelief against the initial material. The regularities ascertained in such a modeling allows to approach for further improvement as in the severe plastic deformation experimental research, as in the combine hardening technology on the whole.
Коваленко, Н. Д. Физическое моделирование комбинированного процесса экструзии и винтового прессования стали / Н. Д. Коваленко, В. В. Лепов, А. М. Иванов // Наука и образование. — 2017. — N 4 (88), октябрь-декабрь. — С. 77-81.
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