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- W2016649429 abstract "The effect of physical aging at 0.92 Tc, on phase separation, crystallization, distributed shear relaxations, hardness, and strain to fracture was investigated in Cu59Zr41 and Fe80B20 glasses. In Cu59Zr41 glass, aging resulted in phase separation prior to crystallization, rather than the expected polymorphous crystallization. In Fe80B20 in the as-quenched alloys a prominent second-order Curie transition was found at 613 K, which was removed by aging. Apart from a nearly four-fold acceleration of the aging process in Fe80B20 over the Cu59Zr41 alloy, their mechanical responses to the aging were very similar in alterations of the internal friction spectrum, evolution of hardness, and strain to fracture. Nous avons étudié l'influence d'un vieillissement à 0,92 Tc sur la séparation des phases, la cristallisation, la relaxation des cisaillements répartis, la dureté et la déformation à la rupture dans les verres Cu59Zr41 et Fe80B20. Dans le verre Cu59Zr41, le vieillissement conduisait à une séparation de phases avant cristallisation, plutôt que la cristallisation polymorphe attendue. Dans les alliages Fe80B20 bruts de trempe, nous avons trouvé une transition de Curie du second ordre très marquée qui disparaissait lors du vieillissement. Mise à part l'accélération pratiquement quadruple du vieillissement dans Fe80B20 par rapport à Cu59Zr41, la réponse mécanique au vieillissement de ces deux alliages était très semblable en ce qui concerne les modifications du spectre de frottement intérieur, l'évolution de la dureté et la déformation à la rupture. Die Wirkung einer physikalischen Auslagerung bei 0,92 Tc auf Phasentrennung, Kristallisation, verteilte Scherrelaxationen, Härte und Bruchdehnung wurde an den Metallgläsern Cu59Zr41 und Fe80B20 untersucht. Im Glas Cu59Zr41 führte die Auslagerung zur Phasentrenung vor der Kristallisation, statt zu der erwarteten polymorphen Kristallisation. Im Glas Fe80B20 fand sich in der abgeschreckten Ausgangslegierung ein deutlicher Curie-übergang zweiter Ordnung bei 613 K, der durch Auslagern verschwand. Abgesehen von einer nahezu vierfachen Beschleunigung des Auslagerungsprozesses bei Fe80B20 gegenüber Cu59Zr41, war das Verhalten beider Gläser bei der Auslagerung Ziemlich ähnlich, was Änderungen im Spektrum der inneren Reibung, Entwicklung der Härte und die Bruchdehung anbetrifft." @default.
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- W2016649429 date "1986-10-01" @default.
- W2016649429 modified "2023-10-09" @default.
- W2016649429 title "Structural relaxation and embrittlement of Cu59Zr41 and Fe80B20 glasses" @default.
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- W2016649429 doi "https://doi.org/10.1016/0001-6160(86)90260-9" @default.
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