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Структура и свойства спеченных сплавов на основе алюминия, полученных экструзией

Структура и свойства спеченных сплавов на основе алюминия, полученных экструзией

Abstract

В данной статье исследуются структура и свойства экструдированных спеченных сплавов на основе алюминия. Были изучены два метода получения сплавов: активированное жидкофазное спекание и интенсивная горячая обработка. Проведено сравнение механических свойств экструдированных сплавов с неэкструдированными аналогами. Результаты указывают на заметное увеличение прочности на разрыв в сплавах Al-Ni и Al-Fe, но снижение прочности в случае сплава Al-Ti. Однако выявлены наилучшие комплексные механические свойства у сплава Al-Ti. Металлографический анализ указал, что частицы переходных металлов не полностью соединились с алюминием. Фрактографические исследования выявили различные механизмы разрушения для каждого сплава: вязкий механизм для сплава Al-Ti, вязко-хрупкий для сплава Al-Fe и хрупкий для сплава Al-Ni. В целом, низкая прочность связана с использованием чистого алюминия в качестве матрицы сплавов.

Keywords

порошковая металлургия, холодное прессование, спекание, алюминиевые порошковые, сплавы, фазовые превращения, горячая механическая обработка, экструзия, механические свойства, прочность, фрактография., T1-995, Technology (General)

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
0
Average
Average
Average
gold