scholarly journals Towards a Physically Consistent Phase-Field Model for Alloy Solidification

2021 ◽  
Author(s):  
Peter Bollada ◽  
Peter K Jimack ◽  
Andrew M Mullis
Keyword(s):  
Phase Field ◽  
Field Model ◽  
Phase Field Model ◽  
General Introduction ◽  
Entropy Flow ◽  
Alloy Solidification ◽  
Field Modelling ◽  
Phase Models ◽  
Multi Phase ◽  
The University

We summarise contributions made to the computational phase-field modelling of alloy solidification from the University of Leeds spoke of the LiME project. We begin with a general introduction to phase-field, and then reference the numerical issues that arise from solution of the model, before detailing each contribution to the modelling itself. These latter contributions range from controlling and developing interface-width independent modelling; controlling morphology in both single and multiphase settings; generalising from single to multi-phase models; and creating a thermodynamic consistent framework for modelling entropy flow and thereby postulate a temperature field consistent with the concepts of, and applicable in, multiphase and density-dependent settings.

scholarly journals An investigation of the lamellar-rod transition in binary eutectic using multi-phase field model

2009 ◽  
Vol 58 (1) ◽  
pp. 650
Author(s):  
Yang Yu-Juan ◽  
Wang Jin-Cheng ◽  
Zhang Yu-Xiang ◽  
Zhu Yao-Chan ◽  
Yang Gen-Cang
Keyword(s):  
Phase Field ◽  
Field Model ◽  
Phase Field Model ◽  
Binary Eutectic ◽  
Multi Phase

A Phase Field Approach for Modeling Melting and Re-Solidification of Ti-6Al-4V during Selective Laser Melting

2016 ◽  
Vol 704 ◽  
pp. 241-250 ◽  
Author(s):  
Peter Holfelder ◽  
Jin Ming Lu ◽  
Christian Krempaszky ◽  
Ewald A. Werner
Keyword(s):  
Selective Laser Melting ◽  
Phase Field ◽  
Field Model ◽  
Phase Field Model ◽  
Nucleation And Growth ◽  
Laser Melting ◽  
Laser Material ◽  
Field Approach ◽  
Multi Phase ◽  
Material Interaction

A Multi Phase Field model is proposed to describe the microstructure evolution induced by laser-material interaction in Selective Laser Melting (SLM). On the basis of the free enthalpy, the nucleation and growth processes occurring during the relevant phase transformations are explicitly taken into account. Within this contribution, the focus is laid on the SLM processing of the titanium alloy Ti-6Al-4V with special emphasis on the transition between β-titanium and melt. The results are discussed and compared to those of more conventional modelling approaches.

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