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Journal of Materials Engineering and Performance

Erschienen in:

01.09.2013

Hot Compression Deformation Behavior and Processing Maps of Mg-Gd-Y-Zr Alloy

verfasst von: Bin Chen, Wei-Min Zhou, Song Li, Xiao-Ling Li, Chen Lu

Erschienen in: Journal of Materials Engineering and Performance | Ausgabe 9/2013

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Abstract

Hot compression deformation behavior and processing maps of the Mg-Gd-Y-Zr alloy were investigated in this paper. Compression tests were conducted at the temperature range from 300 to 450 °C and the strain rate range from 0.001 to 1.0 s⁻¹. It is found that the flow stress behavior is described by the hyperbolic sine constitutive equation in which the average activation energy of 251.96 kJ/mol is calculated. Through the flow stress behavior, the processing maps are calculated and analyzed according to the dynamic materials model. In the processing maps, the variation of the efficiency of the power dissipation is plotted as a function of temperature and strain rate. The instability domains of flow behavior are identified by the maps. The maps exhibit a domain of dynamic recrystallization occurring at the temperature range of 375-450 °C and strain rate range of 0.001-0.03 s⁻¹ which are the optimum parameters for hot working of the alloy.

Vorheriger Artikel Microstructure Simulation of Al-Cu Alloy Based on Inverse Identified Interfacial Heat Transfer Coefficient

Nächster Artikel Inverse Thermal Analysis of Refractory Metal Laser Welds

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Titel: Hot Compression Deformation Behavior and Processing Maps of Mg-Gd-Y-Zr Alloy
verfasst von: Bin Chen
Wei-Min Zhou
Song Li
Xiao-Ling Li
Chen Lu
Publikationsdatum: 01.09.2013
Verlag: Springer US
Erschienen in: Journal of Materials Engineering and Performance / Ausgabe 9/2013
Print ISSN: 1059-9495
Elektronische ISSN: 1544-1024
DOI: https://doi.org/10.1007/s11665-013-0568-1

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