The Application of Phase-field Models to Microstructure Evolution in Multi-phase and Multi-component Alloys

主講人 : Prof. Nele Moelans

Phase-field models hold great promise as a powerful tool for computer-aided design and optimization of multi-component alloys. They can simulate the evolution of complex, multi-phase microstructures during processes such as phase transformations, deformation and annealing. They account for various phenomena, including bulk and grain boundary diffusion, transformation strains, and anisotropy in bulk and interface properties. However, a detailed de ion of the model parameters as a function of composition is required to obtain quantitative results, but often difficult to obtain and computationally expensive to handle in the simulations.

This presentation will discuss the latest advancements in phase-field modeling for multi-component and multi-phase alloys allong with the remaining challenges. It will illustrate the advantages of integrating phase-field models with machine learning and other data driven approaches, and demonstrate the importance of accounting for composition dependence in the simulations.

主講人簡介：

Nele Moelans是比利時魯汶大學（KU Leuven）材料工程系教授，結構復合材料與合金，完整性與無損檢測研究部門負責人。她于2006年獲得魯汶大學博士學位，2006至2010年間作為Research Foundation Flanders (FWO)研究基金會博士后研究員開展研究工作，期間于2008至2009年赴美國Lawrence Livermore National實驗室擔任訪問學者。2010年，她正式受聘為魯汶大學教授。

Nele Moelans教授的研究聚焦于相場模型的開發及其在材料微觀結構演化模擬中的應用。她曾榮獲European Commission的ERC資助。其研究方向是將相場模型與CALPHAD吉布斯自由能理論相結合、開發擴散模型、研究各向異性及微機械模型。當前研究重點涵蓋多個前沿領域：鋰離子電池枝晶生長、金屬增材制造中的微觀結構形成、鋼材氫脆現象、釹鐵硼永磁材料液相燒結、鉑族金屬納米顆粒回收技術，以及鈦合金馬氏體相變等。Nele Moelans教授已在國際權威期刊發表140余篇論文，并受邀在重要學術會議上作主題報告50余場。