Modification of the structure and properties of heat-resistant alloys with the help of nanopowders of refractory compounds

Cao, Lei; Guangxun, Liu; Gu, Hui; Yan, Liang; Черепанов, А. Н.; Овчаренко, В. Е.; Drozdov, V. O.

doi:10.1109/3m-nano.2012.6472998

Cited by 5 publications

(1 citation statement)

References 1 publication

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“…Êëþ÷åâûå ñëîâà: âåëè÷èíà çåðíà, âðåìåííîå ñîïðîòèâëåíèå ðàçðûâó, äèñïåðñíîå ìîäèôèöèðîâàíèå, êàðáèäû âîëüôðàìà, òèòàíà è áîðà, ìåäü, ìîäèôèêàòîð, îòíîñèòåëüíîå óäëèíåíèå, ÑÂÑ, ñòàëü 110Ã13Ë, ôåððîòèòàí Ñîâðåìåííàÿ ëèòåðàòóðà, ïîñâÿùåííàÿ âëèÿíèþ íàíîðàçìåðíûõ ÷àñòèö òóãîïëàâêèõ ôàç íà ñòðóêòóðó è ìåõàíè÷åñêèå ñâîéñòâà ÷óãóíîâ [511] è ñòàëåé [13,10,12,13], âåñüìà îáøèðíà. Êîìïëåêñíûå èññëåäîâàíèÿ âëèÿíèÿ ðàçëè÷íûõ äèñïåðñíûõ ìîäèôèêàòîðîâ è óñëîâèé ìîäèôèöèðîâàíèÿ íà ìîäåëüíûõ ñèñòåìàõ (ìîäèôèöèðîâàíèå ÷óãóíà â ôîðìå) ïðîâåäåíû â ðàáîòàõ [1416].…”

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Nanodispersing Modification of 110G13L Steel

2016

KhUR

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Â íàñòîÿùåå âðåìÿ äèñïåðñíîå ìîäèôèöèðîâàíèå ìåòàëëîâ, ñïëàâîâ, ïëàñòè÷åñêèõ ìàññ èìååò ïîä ñîáîé âíóøèòåëüíóþ òåîðå-òè÷åñêóþ è ýêñïåðèìåíòàëüíóþ áàçó. Îäíàêî íà ïóòè øèðîêîãî ïðàêòè÷åñêîãî èñïîëüçîâàíèÿ ëåaeàò ìíîãî÷èñëåííûå òðóäíîñòè òåõíî-ëîãè÷åñêîãî õàðàêòåðà. Êàê ïðàâèëî, ñïîñîá èõ ïðåîäîëåíèÿ íàïðÿìóþ çàâèñèò îò íàïðàâëåíèÿ ìîäèôèöèðîâàíèÿ, ïîýòîìó êàaeäûé ðàç íåîáõîäèìû òðóäîåìêèå ýêñïåðèìåíòû ïî îïòèìèçàöèè ïðîöåññîâ ââåäåíèÿ íàíîïîðîøêîâ â ìàòðèöó, â ñîîòâåòñòâèè ñ èõ õèìè÷åñêîé ïðèðîäîé [14]. Ìåõàíîõèìèÿ ìîaeåò ñóùåñòâåííî îáëåã÷èòü ïóòü ê äîñòèaeåíèþ ïîëîaeèòåëüíîãî ðåçóëüòàòà.

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Section: àííîòàöèÿunclassified

Nanodispersing Modification of 110G13L Steel

2016

KhUR

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Introduction of dispersed particles into a metal melt during casting as a method for the new functional properties of steels formation

Chumanov

Sedukhin

et al. 2021

AIP Conference Proceedings

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Computer modeling of distribution of dispersed particles by the cross-section of cylindrical dispersion-strengthened metal materials

Аникеев

Chumanov

Алексеев

et al. 2020

Izv. vysš. učebn. zaved., Čern. metall.

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The article presents the process of creating a computer model for predicting the distribution of particles during centrifugal casting using the ANSYS FLUENT 16.0 software module. To predict the distribution of particles by volume in the world at the moment there are several mathematical models. Most of them are based on the steady state assumption: models describing the criteria for dropping particles by a growing crystallization front and models calculating critical particle absorption rates by growing dendritic crystals. Some models attempt to describe the dynamic state of the system or to determine the criterion for capturing non-metallic inclusions by the solidification front during centrifugal casting of metal. The process of creating the new model, its scheme and geometry are described. Its preprocessor takes into account such phenomena as two-phase flow, energy equation, lamellar flow, introduction of discrete phases (strengthening particles), melting/crystallization. The model considers account of interaction of two liquid phases: air and steel melt; interfacial interaction is described by the equation of surface tension. As the materials used, the authors used steel grade 12Kh18N10T as the base metal, carbides of tungsten, boron and yttrium oxide as input particles. During simulation, the physicochemical parameters of these substances were taken into account. The process of modeling the distribution of particles during centrifugal casting using the Skif-Ural computing cluster, included in the TOP-500 of the world’s most powerful computers, is presented. As a result of the simulation, in addition to graphical display, data arrays were obtained that describe the coordinates of each particle at each moment in time in increments of 0.00001 seconds, which allows us to predict the exact location of each particle at each moment of casting. The results of the work indicate that centrifugal casting technology with the introduction of dispersed particles during the casting process allows obtaining dispersion-strengthened metal materials with predicting the distribution of refractory particles.

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Modification of the structure and properties of heat-resistant alloys with the help of nanopowders of refractory compounds

Cited by 5 publications

References 1 publication

Nanodispersing Modification of 110G13L Steel

Nanodispersing Modification of 110G13L Steel

Introduction of dispersed particles into a metal melt during casting as a method for the new functional properties of steels formation

Computer modeling of distribution of dispersed particles by the cross-section of cylindrical dispersion-strengthened metal materials

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