The simulation of the preparation of the ingot with liquid core

During the preparation of the ingot with liquid core in the early stage, the finite element models of the solidification and the ultra-high temperature demoulding were established in DEFORM-3D. The thermophysical properties of ASSAB 718 with the variations of C, Mn, and Cr were calculated in JMatPro...

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Bibliographic Details
Published in:International journal of advanced manufacturing technology Vol. 116; no. 3-4; pp. 931 - 940
Main Authors: Wu, Yongqiang, Sun, Zhiren, Wang, Kaikun
Format: Journal Article
Language:English
Published: London Springer London 01.09.2021
Springer Nature B.V
Subjects:
Algorithms
CAE) and Design
Chromium
Computer simulation
Computer-Aided Engineering (CAD
Deformation
Engineering
Finite element method
High temperature
Industrial and Production Engineering
Ingots
Liquid phases
Manganese
Mathematical analysis
Mechanical Engineering
Media Management
Original Article
Programming languages
Simulation
Solid phases
Solidification
Solids
Temperature distribution
Thermophysical properties
Ultrahigh temperature
DEFORM-3D
The ultra-high temperature demoulding
DEFORM-2D
The method of solidification time
The equivalent coefficient
The boundary conditions
Solidification
ISSN:0268-3768, 1433-3015
Online Access:Get full text
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Summary:During the preparation of the ingot with liquid core in the early stage, the finite element models of the solidification and the ultra-high temperature demoulding were established in DEFORM-3D. The thermophysical properties of ASSAB 718 with the variations of C, Mn, and Cr were calculated in JMatPro®. The material database was imported into DEFORM-3D. Through the analysis of finite element simulation results, we obtained the influence of three main elements C, Mn, and Cr contents on the size of the solid-phase region, the liquid-phase region, and the solid-liquid two-phase region in the ingot. We optimized the composition of the material to get a wide solid-liquid phase range. The medium/high carbon, the medium manganese, and the high chromium contents were beneficial to form the liquid core. Based on the method of the solidification time, the algorithm was programmed by the python language. We analyzed the influence of the three elements C, Mn, and Cr on the concentration distribution based on the temperature field data, which were obtained by DEFORM-2D after the solidification and the ultra-high temperature demoulding. According to the simulation results, we found the region prone to negative segregation.
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content type line 14
ISSN:0268-3768
1433-3015
DOI:10.1007/s00170-021-07538-w