Simulation and Analysis of Microstructure Evolution of IN718 in Rotary Forgings by FEM

被引：0

作者：

于忠奇

马秋

林忠钦

机构：

[1] SchoolofMechanicalEngineering,ShanghaiJiaotongUniversity,Shanghai,China

来源：

Journal of Shanghai Jiaotong University(Science) | 2008年 / 13卷 / 06期

关键词：

rotary forging; finite element method(FEM); microstructure evolution; deformation mechanism; IN718; alloy;

D O I：

暂无

中图分类号：

TG316 [锻造工艺];

学科分类号：

080201 ; 080503 ;

摘要：

A numerical analysis was performed to study the in?uence of process parameters on the microstruc-ture evolution of IN718 alloy in rotary forging using the finite element method(FEM).For this purpose, a constitutive equation considering the effects of strain hardening and dynamic softening of IN718 alloy was built.The constitutive equation and microstructure models were implemented into the finite element code to investigate the microstructure evolution during rotary forging subject to large deformations.The simulations were carried out in the ratio of initial height to diameter range 0.2-0.8, the angle of the rocker 3°-7° and the relative feed per revolution range 0.01-0.1 r-1.The research results revealed the deformation mechanism and the correlation of process parameters with the grain size evolution of IN718 alloy during rotary forging.These provide evidence for the selection of rotary forging parameters.

引用

页码：721 / 726

页数：6

共 13 条

[1]

Microstructure prediction of Nimonic 80A for large exhaust valve during hot closed die forging[J] . H.S. Jeong,J.R. Cho,H.C. Park.Journal of Materials Processing Tech. . 2005

[2]

Applications of numerical simulation to the analysis of bulk-forming processes—case studies[J] . G Liu,L.B Zhang,X.L Hu,Z.R Wang,R.W Wang,S.D Huang,Q.B Tang.Journal of Materials Processing Tech. . 2004 (1)

[3]

3-D Simulation of hot forming and microstructure evolution[J] . H Grass,C Krempaszky,T Reip,E Werner.Computational Materials Science . 2003 (3)

[4]

Microstructure evolution during metal forming processes[J] . N Bontcheva,G Petzov.Computational Materials Science . 2003 (3)

[5] Simulation of microstructures for Alloy 718 blade forging using 3D FEM simulator [J].

Na, YS ;

Yeom, JT ;

Park, NK ;

Lee, JY .

JOURNAL OF MATERIALS PROCESSING TECHNOLOGY, 2003, 141 (03) :337-342

[6] Simulation and analysis of rotary forging a ring workpiece using finite element method [J].

Wang, GC ;

Zhao, GQ .

FINITE ELEMENTS IN ANALYSIS AND DESIGN, 2002, 38 (12) :1151-1164

[7]

Flow stress modeling and warm rolling simulation behavior of two Ti–Nb interstitial-free steels in the ferrite region[J] . C Huang,E.B Hawbolt,X Chen,T.R Meadowcroft,D.K Matlock.Acta Materialia . 2001 (8)

[8]

Prediction of the flow stress and grain size of steel during thick-plate rolling[J] . Jong-Jin Park.Journal of Materials Processing Tech. . 2001 (1)

[9]

Hot forging of a nickel-base superalloy[J] . N.K. Park,I.S. Kim,Y.S. Na,J.T. Yeom.Journal of Materials Processing Tech. . 2001 (1)

[10]

Application of the finite element method to predict microstructure evolution in the hot forging of steel[J] . Yong-Soon Jang,Dae-Cheol Ko,Byung-Min Kim.Journal of Materials Processing Tech. . 2000 (1)

← 1 2 →