Temperature field analysis and its application in hot continuous rolling of Inconel 718 superalloy

被引:7
|
作者
Sui, Fengli [1 ]
Chen, Liqing [1 ]
Liu, Xianghua [1 ]
Wang, Lintao [2 ]
Li, Wei [2 ]
机构
[1] Northeastern Univ, State Key Lab Rolling & Automat, Shenyang 110004, Peoples R China
[2] Baoshan Iron & Steel Co Ltd, Special Steel Branch, R&D Ctr, Shanghai 200940, Peoples R China
基金
中国国家自然科学基金;
关键词
Hot continuous rolling; Elastic-plastic finite element method (FEM); Coupled analysis; Temperature field; Inconel; 718;
D O I
10.1016/S1006-7191(08)60074-5
中图分类号
TF [冶金工业];
学科分类号
0806 ;
摘要
A coupled thermo-mechanical model containing metal flow and temperature field for calculating temperature variation has been developed on fourteen-pass hot continuous rolling of round rod for Inconel 718 alloy using 3D elastic-plastic finite element method (FEM). The temperature of characteristic analysis points in the intermediate cross-section of the workpiece has been simulated at initial temperature ranging from 960 to 1000 degrees C and initial velocity in range of 0.15-0.55 m.s(-1). Based on finite element analysis and microstructural observation in cylindrical hot compression experiments, the appropriate hot continuous rolling technologies have been designed for rod products with different diameters. For a real rolling practice, the simulated surface temperature was examined and is in good agreement with the measured one.
引用
收藏
页码:81 / 90
页数:10
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