Development of Processing Maps for AZ81E Magnesium Alloy

The hot deformation characteristics of a AZ81E magnesium alloy are studied in the RANGE temperatures from 340 to 430 °C and strain rates ranging between 0.003 and 3.0 s−1 utilizing hot compression tests. Combining Arrhenius equation and Zener-Hollomon parameter, the high temperature flow stress mode...

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Main Authors: Cao Han-xue, Wu Xue-yan, Liao Hui-min, Hao Meng-yao
Format: Article
Language:English
Published: De Gruyter 2018-01-01
Series:High Temperature Materials and Processes
Subjects:
Online Access:https://doi.org/10.1515/htmp-2016-0082
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author Cao Han-xue
Wu Xue-yan
Liao Hui-min
Hao Meng-yao
author_facet Cao Han-xue
Wu Xue-yan
Liao Hui-min
Hao Meng-yao
author_sort Cao Han-xue
collection DOAJ
description The hot deformation characteristics of a AZ81E magnesium alloy are studied in the RANGE temperatures from 340 to 430 °C and strain rates ranging between 0.003 and 3.0 s−1 utilizing hot compression tests. Combining Arrhenius equation and Zener-Hollomon parameter, the high temperature flow stress model is proposed and the average activation energy is 166.15 kJ/mol. Processing maps for hot working are developed on the basis of the efficiency of power dissipation with changing temperatures and strain rates. The power dissipation map reveals that the optimum hot working domain is the temperature range of 390–400 °C and strain rate range of 0.03–0.3 s−1.
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spelling doaj.art-fdbc4ad9ec6d47c59a0a5bb5cd738b3a2022-12-21T22:07:58ZengDe GruyterHigh Temperature Materials and Processes0334-64552191-03242018-01-0137215716210.1515/htmp-2016-0082Development of Processing Maps for AZ81E Magnesium AlloyCao Han-xue0Wu Xue-yan1Liao Hui-min2Hao Meng-yao3College of Materials Science and Engineering, Chongqing University, Chongqing400030, ChinaCollege of Materials Science and Engineering, Chongqing University, Chongqing400030, ChinaSchool of Materials Science and Engineering, Xihua University, Chengdu610039, ChinaCollege of Materials Science and Engineering, Chongqing University, Chongqing400030, ChinaThe hot deformation characteristics of a AZ81E magnesium alloy are studied in the RANGE temperatures from 340 to 430 °C and strain rates ranging between 0.003 and 3.0 s−1 utilizing hot compression tests. Combining Arrhenius equation and Zener-Hollomon parameter, the high temperature flow stress model is proposed and the average activation energy is 166.15 kJ/mol. Processing maps for hot working are developed on the basis of the efficiency of power dissipation with changing temperatures and strain rates. The power dissipation map reveals that the optimum hot working domain is the temperature range of 390–400 °C and strain rate range of 0.03–0.3 s−1.https://doi.org/10.1515/htmp-2016-0082az81eflow stresshot compression testsprocessing mapshot working parameters
spellingShingle Cao Han-xue
Wu Xue-yan
Liao Hui-min
Hao Meng-yao
Development of Processing Maps for AZ81E Magnesium Alloy
High Temperature Materials and Processes
az81e
flow stress
hot compression tests
processing maps
hot working parameters
title Development of Processing Maps for AZ81E Magnesium Alloy
title_full Development of Processing Maps for AZ81E Magnesium Alloy
title_fullStr Development of Processing Maps for AZ81E Magnesium Alloy
title_full_unstemmed Development of Processing Maps for AZ81E Magnesium Alloy
title_short Development of Processing Maps for AZ81E Magnesium Alloy
title_sort development of processing maps for az81e magnesium alloy
topic az81e
flow stress
hot compression tests
processing maps
hot working parameters
url https://doi.org/10.1515/htmp-2016-0082
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AT wuxueyan developmentofprocessingmapsforaz81emagnesiumalloy
AT liaohuimin developmentofprocessingmapsforaz81emagnesiumalloy
AT haomengyao developmentofprocessingmapsforaz81emagnesiumalloy