Document
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Instituto de Investigación de Materiales; Instituto de Metalurgia; Universidad Autónoma de San Luis Potosí, UASLP
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funding vehicle for: Phenomenological Model for the Dynamic Superplastic Deformation Mechanism in a Zn-Al Eutectoid Alloy Modified with 2 wt%25 Cu

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Phenomenological Model for the Dynamic Superplastic Deformation Mechanism in a Zn-Al Eutectoid Alloy Modified with 2 wt%25 Cu
crisid: 12442
type: Document
date time value: article date 12442
most specific type: Document
has funding vehicle: Instituto de Investigación de Materiales; Instituto de Metalurgia; Universidad Autónoma de San Luis Potosí, UASLP
type: Generically Dependent Continuant
type: Entity
type: Information Content Entity
abstract: In this work, superplastic behavior in tension for the Zn-21Al-2Cu alloy was reviewed as a function of: grain size, temperature and strain rate. The deformation mechanism was studied under conditions where the greatest elongation was reached, characterizing microstructural changes and analyzing the associated mechanical response such as the study of plastic stability. This analysis allowed us to propose a phenomenological model consisting of five steps for the mechanism of superplastic deformation under which dynamic conditions are involved for this alloy. In the first stage, an accommodation of the microstructure was observed, in the second stage sliding by individual grain boundaries (GBS) was activated, which provided the conditions for stationary plastic flow. In the third stage, GBS was hampered by the tendency of grain boundaries remaining from high temperature phase (FβBs) to align at 45°. This fact caused the onset of plastic instability. The fourth stage consisted of a transition in which there was competition between individual and cooperative GBS mechanisms, which increased plastic instability. In the last stage, the FβBs were aligned parallel to tensile direction, which favored the GBS, and an additional diffusion flow mechanism allowed partial recovery of stable plastic flow. Graphical Abstract: (Figure presented.)
estado: published
related by: authorship_75452
related by: authorship_76622
related by: authorship_75450
issue: 11
volume: 30
has publication venue: Metals and Materials International
related by: authorship_75451
page start: 3014
doi: 10.1007/s12540-024-01696-8
page end: 3029
e iscopus: 2-s2.0-85194771100
type: Article
type: Thing
most specific type: Article
related by: authorship_75453
freetext keyword: Deformation mechanism; Superplasticity; Zn-Al-Cu alloys Binary alloys; Copper alloys; Dynamic recrystallization; Grain boundary sliding; Plastic flow; Strain rate; Superplasticity; Ternary alloys; Zinc alloys; Condition; Deformation mechanism; Grain strains; Grain-boundaries; Grainsize; Phenomenological models; Plastic instabilities; Superplastic behavior; Superplastic deformation mechanisms; Zn-Al eutectoid alloy; Aluminum alloys
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Entity
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Generically Dependent Continuant
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RDF description of Phenomenological Model for the Dynamic Superplastic Deformation Mechanism in a Zn-Al Eutectoid Alloy Modified with 2 wt%25 Cu - http://orbis.uaslp.mx/vivo/individual/scopus12441
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date: 2026-08-27T12:50:20
publisher: vivo
type: Document

Article
type: Class

Information Content Entity
type: Class

Metals and Materials International
type: Entity
type: Journal
type: Generically Dependent Continuant
publication venue for: Phenomenological Model for the Dynamic Superplastic Deformation Mechanism in a Zn-Al Eutectoid Alloy Modified with 2 wt%25 Cu
type: Continuant
type: Document
type: Information Content Entity
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type: Periodical
type: Collection