Analysis of hot deformation behavior and processing map of extruded AZ40 alloy

The Gleeble-3500 thermal simulation tester was used to perform hot deformation behavior on the extruded AZ40 Mg alloy to analyze the trend of the true stress-strain curve after compression and to obtain the influence of the flow stress on the deformation temperature and strain rate. Subsequently, th...

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Autores principales:	ZHI Sheng-xing, LI Xing-gang, YUAN Jia-wei, LI Yong-jun, MA Ming-long, SHI Guo-liang, ZHANG Kui
Formato:	article
Lenguaje:	ZH
Publicado:	Journal of Materials Engineering 2021
Materias:	az40 alloy hot deformation constitutive equation processing map texture Materials of engineering and construction. Mechanics of materials TA401-492
Acceso en línea:	https://doaj.org/article/024b888d363d4e35902d8dfcfe7faef9
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spelling	oai:doaj.org-article:024b888d363d4e35902d8dfcfe7faef92021-11-12T03:01:54ZAnalysis of hot deformation behavior and processing map of extruded AZ40 alloy1001-438110.11868/j.issn.1001-4381.2021.000136https://doaj.org/article/024b888d363d4e35902d8dfcfe7faef92021-11-01T00:00:00Zhttp://jme.biam.ac.cn/CN/10.11868/j.issn.1001-4381.2021.000136https://doaj.org/toc/1001-4381The Gleeble-3500 thermal simulation tester was used to perform hot deformation behavior on the extruded AZ40 Mg alloy to analyze the trend of the true stress-strain curve after compression and to obtain the influence of the flow stress on the deformation temperature and strain rate. Subsequently, the constitutive equation was constructed for extruded AZ40 alloy based on the hyperbolic-sine relationship, and the thermal processing map of extruded AZ40 alloy was established based on the dynamic material model (DMM), thereby estimating the processing range of extruded AZ40 alloy. The results show that the rheological curve of extruded AZ40 alloy is characterized by obvious dynamic recrystallization. Furthermore, during the compression process, the peak stress of extruded AZ40 alloy decreases with the increase of deformation temperature, while increases with the increase of strain rate. Moreover, the proportion of dynamic recrystallized grains (DRGs) decreases with the increase of the strain rate under the same deformation temperature condition; while the DRGs size increases with the increase of the deformation temperature under the same strain rate condition. The coarse uncrystallized grains show obvious crystallographic orientations of 〈10<span style="border-top: 1px solid; padding-top: 0px;">1</span>0〉‖ND and 〈2<span style="border-top: 1px solid; padding-top: 0px;">1</span><span style="border-top: 1px solid; padding-top: 0px;">1</span>0〉‖ND, while crystallographic orientation of DRGs is random distributed. Finally, through thermal processing map and tissue analysis, the optimal processing window was identified as <i>T</i>=573 K, $\dot \varepsilon $=0.1 s<sup>-1</sup>.ZHI Sheng-xingLI Xing-gangYUAN Jia-weiLI Yong-junMA Ming-longSHI Guo-liangZHANG KuiJournal of Materials Engineeringarticleaz40 alloyhot deformationconstitutive equationprocessing maptextureMaterials of engineering and construction. Mechanics of materialsTA401-492ZHJournal of Materials Engineering, Vol 49, Iss 11, Pp 136-146 (2021)
institution	DOAJ
collection	DOAJ
language	ZH
topic	az40 alloy hot deformation constitutive equation processing map texture Materials of engineering and construction. Mechanics of materials TA401-492
spellingShingle	az40 alloy hot deformation constitutive equation processing map texture Materials of engineering and construction. Mechanics of materials TA401-492 ZHI Sheng-xing LI Xing-gang YUAN Jia-wei LI Yong-jun MA Ming-long SHI Guo-liang ZHANG Kui Analysis of hot deformation behavior and processing map of extruded AZ40 alloy
description	The Gleeble-3500 thermal simulation tester was used to perform hot deformation behavior on the extruded AZ40 Mg alloy to analyze the trend of the true stress-strain curve after compression and to obtain the influence of the flow stress on the deformation temperature and strain rate. Subsequently, the constitutive equation was constructed for extruded AZ40 alloy based on the hyperbolic-sine relationship, and the thermal processing map of extruded AZ40 alloy was established based on the dynamic material model (DMM), thereby estimating the processing range of extruded AZ40 alloy. The results show that the rheological curve of extruded AZ40 alloy is characterized by obvious dynamic recrystallization. Furthermore, during the compression process, the peak stress of extruded AZ40 alloy decreases with the increase of deformation temperature, while increases with the increase of strain rate. Moreover, the proportion of dynamic recrystallized grains (DRGs) decreases with the increase of the strain rate under the same deformation temperature condition; while the DRGs size increases with the increase of the deformation temperature under the same strain rate condition. The coarse uncrystallized grains show obvious crystallographic orientations of 〈10<span style="border-top: 1px solid; padding-top: 0px;">1</span>0〉‖ND and 〈2<span style="border-top: 1px solid; padding-top: 0px;">1</span><span style="border-top: 1px solid; padding-top: 0px;">1</span>0〉‖ND, while crystallographic orientation of DRGs is random distributed. Finally, through thermal processing map and tissue analysis, the optimal processing window was identified as <i>T</i>=573 K, $\dot \varepsilon $=0.1 s<sup>-1</sup>.
format	article
author	ZHI Sheng-xing LI Xing-gang YUAN Jia-wei LI Yong-jun MA Ming-long SHI Guo-liang ZHANG Kui
author_facet	ZHI Sheng-xing LI Xing-gang YUAN Jia-wei LI Yong-jun MA Ming-long SHI Guo-liang ZHANG Kui
author_sort	ZHI Sheng-xing
title	Analysis of hot deformation behavior and processing map of extruded AZ40 alloy
title_short	Analysis of hot deformation behavior and processing map of extruded AZ40 alloy
title_full	Analysis of hot deformation behavior and processing map of extruded AZ40 alloy
title_fullStr	Analysis of hot deformation behavior and processing map of extruded AZ40 alloy
title_full_unstemmed	Analysis of hot deformation behavior and processing map of extruded AZ40 alloy
title_sort	analysis of hot deformation behavior and processing map of extruded az40 alloy
publisher	Journal of Materials Engineering
publishDate	2021
url	https://doaj.org/article/024b888d363d4e35902d8dfcfe7faef9
work_keys_str_mv	AT zhishengxing analysisofhotdeformationbehaviorandprocessingmapofextrudedaz40alloy AT lixinggang analysisofhotdeformationbehaviorandprocessingmapofextrudedaz40alloy AT yuanjiawei analysisofhotdeformationbehaviorandprocessingmapofextrudedaz40alloy AT liyongjun analysisofhotdeformationbehaviorandprocessingmapofextrudedaz40alloy AT maminglong analysisofhotdeformationbehaviorandprocessingmapofextrudedaz40alloy AT shiguoliang analysisofhotdeformationbehaviorandprocessingmapofextrudedaz40alloy AT zhangkui analysisofhotdeformationbehaviorandprocessingmapofextrudedaz40alloy
_version_	1718431268630167552

Analysis of hot deformation behavior and processing map of extruded AZ40 alloy

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