Transactions of Materials and Heat Treatment

Title：Constituting technology of hot deformation resistance model for Mg-alloys

Authors： WU Li-hong WANG Li-guo GUAN Shao-kang LIU Jun CHEN Yong(School of Materials Science and Engineering Zhengzhou University Zhengzhou 450002 China)

Unit：

KeyWords： magnesium alloys hot forging formation deformation resistances modeling

ClassificationCode：TG316

year,vol(issue):pagenumber：2007,32(4):7-11

Abstract：

Material deformation resistance is the basis of hot working whose reasonable model is the key for finite element method numerical simulation.In the paper,the commonly-used method for testing deformation resistances was introduced and the general modeling technology and status were investigated based on the key factors affecting the resistances of magnesium alloys at high temperatures.Other modeling methods,such as softening factor and artificial neural networks(ANNs) were also discussed.Then the characteristics of the methods were compared.Reasonable model of deformation resistances of new magnesium alloys provided the guidance for predicting the deformation resistances at elevated temperatures,numerical simulation and forging process.

Funds：

教育部重点基金资助项目(No.204085)

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