Влияние содержания Zr и Er на структуру и свойства сплава Al–5Si–1.3Cu–0.5Mg

Барков, Р. Ю.; Просвиряков, А. С.; Хомутов, М. Г.; Поздняков, А. В.

doi:10.31857/s0015323021060024

Cited by 3 publications

(1 citation statement)

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“…В доэвтектических силуминах для улучшения прочностных характеристик часто используют тугоплавкие элементы -титан, бор, ванадий, цирконий, -которые имеют значительное влияние на микроструктурные параметры первичных кристаллов и эвтектики: размеры дендритов первичного α-Al, расстояние между ветвями дендритов второго порядка (SDAS), форма кристаллов кремния в эвтектике [44,45]. Согласно данным работ [17,[45][46][47][48], при введении в расплав данных элементов образуются зародыши сложных химических соединений, являющиеся центрами кристаллизации α-Al.…”

Section: модификаторы в промышленныхunclassified

Влияние модифицирующих элементов на структуру и механические свойства литейных Al-Si-сплавов

Осипов¹

2022

Журнал Технической Физики

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The state of scientific research on the modification of aluminum-silicon (Al-Si) alloy with strontium, sodium, phosphorus, which are widely employed in industrial alloys, and the modification of Al-Si alloy with intensively studied rare-earth elements (cerium, europium, samarium and others) was analyzed. Scientific articles related to the study of the effect of modifiers on the mechanical properties, mainly on the strength and ductility of hypoeutectic, eutectic and hypereutectic alloys was considered. On the basis of a literary data analysis, ways of improving the mechanical properties have been proposed by jointly modifying several elements, the possibility of forming the solely eutectic structure in the hypereutectic composition alloy 0.01 wt% strontium (Sr) modified and directionally crystallized at a rate that provides paired growth of the eutectic components is noted. This composition of Al-Si alloy has superfine-grained eutectic structure, its strength and ductility exceed the mechanical properties of Al-Si alloys obtained by other techniques.

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Section: модификаторы в промышленныхunclassified

Влияние модифицирующих элементов на структуру и механические свойства литейных Al-Si-сплавов

Осипов¹

2022

Журнал Технической Физики

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Study of deformability during the rolling of aluminum alloy 1580 doped with small additions of erbium and ytterbium

Konstantinov,

Baykovskiy,

Yuryev

et al. 2024

Metallurgist

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Mechanical Properties of High Entropy Alloys Based on Rare Earth Elements with Yttrium and Scandium

Sipatov,

Korolev,

Ignatieva

et al. 2023

Fizika metallov i metallovedenie

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Abstract—The high-entropy alloys GdTbDyHoSc and GdTbDyHoY having equiatomic composition are considered as promising materials for magnetic cold generators. The results of the alloys structure and chemical composition investigation are presented in this paper. The solidus and liquidus temperatures of the alloys under investigation were determined by the method of differential scanning calorimetry. Based on these data, an experimental mode of thermocyclic treatment was selected. There were no signs of alloys destruction after five cycles testing for heat resistance in the following regime: 15 min exposition at 1073 K (~0.6 of the melting temperature) and subsequent quenching in room temperature water. It was found that the applied heat treatment led to an increase in the hardness of the alloys by 2–3 times and a decrease in wear resistance by 4–40 times, depending on the composition of the alloys and the number of heat treatment cycles. A significant change in the properties of alloys is associated with the formation of oxides of the REM2O3 type not only on the surface of the alloys, but also in their volume, which is due to the high chemical activity of rare earth metals (REM). The presented data will be useful for the development of modes of thermal and thermomechanical processing of various alloys.

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Влияние содержания Zr и Er на структуру и свойства сплава Al–5Si–1.3Cu–0.5Mg

Cited by 3 publications

References 0 publications

Влияние модифицирующих элементов на структуру и механические свойства литейных Al-Si-сплавов

Влияние модифицирующих элементов на структуру и механические свойства литейных Al-Si-сплавов

Study of deformability during the rolling of aluminum alloy 1580 doped with small additions of erbium and ytterbium

Mechanical Properties of High Entropy Alloys Based on Rare Earth Elements with Yttrium and Scandium

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