Structure peculiarities of material formed by dynamic compacting of amorphous powders

Voloshin, M. N.; Марков, А. В.; Sklyarenko, N. V.; Sidorova, G. V.

doi:10.1080/08957959108260708

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2021

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“…Therefore, the main form of obtaining amorphous metals is thin tapes, powders or microwires. A number of papers present the results of obtaining compacts from amorphous alloy powders [8][9][10][11][12]. However, amorphous metals in the form of tapes, microwires and compacts have received limited practical use due to the low crystallization temperature and technological difficulties in manufacturing products of complex shapes.…”

Section: Introductionmentioning

confidence: 99%

Thermal processes under explosive loading of amorphous alloy powders

2021

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The article deals with the state of production of bulk amorphous and nanocrystalline materials. Conditions for the preservation of the “X-ray” amorphous state in compact materials obtained by explosive pressing of amorphous alloy powders are formulated. The two-front Stefan problem is solved and it is shown that the cooling rate of liquid layers on the contact surfaces of powder particles under explosive loading corresponds to the critical quenching rate of the formation of amorphous structures in metal alloys.

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Section: Introductionmentioning

confidence: 99%