Modelling and simulation of microstructural evolution in Zr based Bulk Metallic Glass Matrix Composites (BMGMC) in Additive Manufacturing

Interdisciplinary Areas: Future Manufacturing

Project Description

Despite being well established phenomena, solidification principles are experiencing tough challenges in their applications to explain microscale transport phenomena in additive manufacturing melt pool. The problem becomes even more complicated when applied to multicomponent bulk metallic glasses and their composites whose behavior is dubious and still not fully understood. The aim of this project is to overcome these challenges. A comprehensive nucleation and growth model based on original KGT theory and Rappaz modification is aimed to be developed encompassing actual transient thermophysical BMGMC data to predict evolving microstructure during additive manufacturing. The model is aimed at pictorial representation of in-situ ductile phase dendrite or spheroid evolution from melt pool during solidification using two-dimensional cellular automaton (CA) methods. It will be coded in MATLAB® using commercial simulation code ABAQUS® at back end for macroscopic heat transfer model. The results will be compared with experimental values for validation.  

Start Date


Postdoc Qualifications

1. Doctoral degree in materials science and engineering, mechanical engineering or aerospace engineering.. 
2. Industrial or research experience in model development, its simulation and output generation. 
3. Familiarity with modeling optimization techniques. 
4. Familiarity and hand on experience with programming languages such as FORTRAN, C++, MATLAB and Python.
5. Familiarity with interfacing of low level machine languages with medium to high level machine languages.
6. Familiarity office management softwares (Microsoft Word, Excel, Powerpoint, Access, Outlook)
7. Excellent interpersonal, presentation and team working skills
8. Ability to work under pressure and meet tough deadlines and tight schedules
9. Command over report writing and conference presentation with ability to disseminate knowledge. 

Prof. Dr. Hector Gomez
Associate Professor of Mechanical Engineering
School of Mechanical Engineering
Purdue University
585 Purdue Mall
West Lafayette, IN 47907-2088
Office: ME 2191

Dr. Mirian Velay-Lizancos
Visiting Assistant Professor - Purdue university - Civil engineering
West Lafayette, IN 47907-2088 

1. Rafique, M., Qiu, D., & Easton, M. (2017). Modeling and simulation of microstructural evolution in Zr based Bulk Metallic Glass Matrix Composites during solidification. MRS Advances, 2(58-59), 3591-3606. doi:10.1557/adv.2017.481

2. Rafique, M. (2018) Modelling and Simulation of Solidification Phenomena during Additive Manufacturing of Bulk Metallic Glass Matrix Composites (BMGMC)—A Brief Review and Introduction of Technique. Journal of Encapsulation and Adsorption Sciences, 8, 67-116. doi: 10.4236/jeas.2018.82005.

3. Rafique, M. (2018) Probabilistic Modelling of Microstructural Evolution in Zr Based Bulk Metallic Glass Matrix Composites during Solidification in Additive Manufacturing. Engineering, 10, 130-141. doi: 10.4236/eng.2018.104010.

4. Rafique, M. (2018) Simulation of Solidification Parameters during Zr Based Bulk Metallic Glass Matrix Composite’s (BMGMCs) Additive Manufacturing. Engineering, 10, 85-108. doi: 10.4236/eng.2018.103007.

5. Rafique M.M.A. (2018) Probabilistic Modeling and Simulation of Microstructural Evolution in Zr Based Bulk Metallic Glass Matrix Composites During Solidification. In: & Materials Society T. (eds) TMS 2018 147th Annual Meeting & Exhibition Supplemental Proceedings. TMS 2018. The Minerals, Metals & Materials Series. Springer, Cham