Transactions of Materials and Heat Treatment

Title：Numerical simulation of microstructure evolution during GH4169 alloy blade making

Authors： QI Guang-xia1 WAN Jing-jing1 CHEN Xiao-feng2 JI Ting-zhong3(1.College of Materials Science and Engineering Shenyang Ligong University Shenyang 110168 China 2.Shenyang Liming Aero-Engine Group Corporation Shenyang 110043 China 3.School of Materials Science

Unit：

KeyWords： extrusion high-temperature alloy microstructure evolution numerical simulation

ClassificationCode：TG316.3

year,vol(issue):pagenumber：2009,34(1):161-165

Abstract：

In order to predict the evolution of microstructure in GH4169 alloy extrusion workpiece,mathematical models for the microstructure evolution of GH4169 workpiece were implemented into DEFORM-3D simulator,then the coupling between thermo-mechanical and microstructure evolution was realized.Meanwhile,the method was used to predict the influence of various height reduction and deformation velocity.The results show that the height reduction and deformation velocity have a strong influence on the microstructure evolution,and the pole of the workpiece has less grain size.

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Reference：

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