ACRC Researchers and staff, Fall 2021

Benjamin currently serves as a Postdoctoral Scholar of the Department of Materials Science and Engineering at UCI. Within the ACRC, Benjamin leads a research project focused on the development of Al alloys that achieve target mechanical properties in the as-cast state or “F-state” of high pressure die casting. To accomplish this, Benjamin is leveraging integrated computationally materials engineering ICME techniques to effectively design the alloy from non-Si hypoeutectic compositions. Benjamin completed his Ph.D. in August 2020 under Professor Enrique J. Lavernia investigating phase formation and stability in complex concentrated alloys after various metallurgical processing routes to better elucidate effective design approaches for compositions with desirable structural properties and processability. In his free time, Benjamin enjoys cycling, live music, backpacking, and antiquities museums.

Cheolmin currently serves as a Doctoral student in the Department of Materials Science and Engineering at UCI. As a member of the ACRC team, Cheolmin is working on a research project focused on thermal management for metal. He received his M.S. in February 2021 from the National Korea Maritime and Ocean University, Republic of Korea, and researched the creep characteristic of hypoeutectic Al-Si alloy manufactured by a high-pressure die-casting process. In idle moments, Cheolmin enjoys playing soccer, doing workouts, listening to music, and swimming.

Shiguang has been a Postdoctoral Scholar at ACRC in the Department of Materials Science and Engineering since 2019. Within the ACRC, Shiguang leads a research project focusing on utilizing finite element method and computed tomography technology to understand the influence of manufacturing-induced pores on components’ mechanical performances. To accomplish this research goal, Shiguang integrates multiscale finite element models with porosity-oriented microstructural reconstruction technique and machine learning tools. Shiguang completed his Ph.D. in 2016 under Professor Krishnan Suresh from University of Wisconsin Madison. His thesis emphasizes on 3D large-scale thermo-elastic topology optimization. Before joining ACRC, Shiguang was a research and development engineer at MSC.Nastran from 2016 to 2019. In his free time, Shiguang enjoys soccer and jogging.

Dr. Soderhjelm received his PhD from Worcester Polytechnic Institute and continued his research for the Advanced Casting Research Center. As a Postdoctoral researcher he worked on particulate reinforcement of aluminum alloys, as well as novel metal additive manufacturing process development. His current research for ACRC is focused on processing semi-solid and liquid metals, as well as incorporation of additive manufacturing into the aluminum die casting industry.

Brandon Fields is a 3rd year Ph.D. student in the Materials Science & Engineering department at UC Irvine and is co-advised by Dr. Lorenzo Valdevit and Dr. Diran Apelian. His research focuses on advancing metal additive manufacturing technologies and optimizing the processing-structure-properties relationship. Specifically investigating steel and aluminum alloy systems using the laser-powder-bed-fusion process (LPBF). His recent work focuses on the improved printability and performance of modified 7000-series high-strength aluminum. Additionally, he is studying novel aluminum-cerium alloys for their role in high-temperature applications.

Brandon grew up in Los Angeles, California, and received his B.S. summa cum laude in Physics from California Polytechnic State University, San Luis Obispo.

Shrivatsav currently serves as a Doctoral Candidate in the Department of Materials Science and Engineering at UCI. Within the ACRC Shri is developing Al alloys directly from scrap streams, focusing on recovery and reuse of Al. He received his M.S in June 2021 in Material Science and Engineering at UCI. He focuses his studies on sustainability and failure analysis of materials. To relax Shri enjoys listening to music, watching movies, skating, and photography.

Sakshi is a Doctoral student in the department of Materials Science and Engineering at UCI. She works with the NSF-MRSEC team studying the interfacial science of the Complex Concentrated Alloys (CCAs). Sakshi’s PhD research is focused on the processing kinetics and microstructure evolution in the CrCoNi FCC CCAs which are known for their exceptional mechanical properties at cryogenic temperatures. Sakshi obtained her Bachelor of Technology degree in Metallurgical and Materials engineering from Malaviya National Institute of Technology, India. For her undergrad thesis, she studied the effect of heating rate on the cold rolled low carbon steels. In free time, Sakshi enjoys acrylic painting, cooking and reading.

Taiki is a Doctoral Candidate in the Department of Materials Science and Engineering at UCI. Taiki received his Bachelor of Science degree in Materials Science and Engineering at UCI in 2018 and is returning for graduate studies. Taiki will be pursuing a research project in the field of additive manufacturing materials. In Taiki’s free time he enjoys playing/watching sports, attending concerts, and cooking.

Raquel earned her B.S. from UC Riverside in 2022 and is now a doctoral student studying Materials Science & Engineering at UCI. Raquel’s previous research focused on High Entropy Alloys and processing via Electromagnetic Levitation in which she co-authored a publication on the effects of the addition of Fe to CoCrCuTi alloys. Now she will be working as part of the ACRC here at UCI on future projects. In her free time, Raquel enjoys building film props, volleyball, photography, ballet, and OHV riding in the desert.

Calvin earned his M.S. degree in 2021 in the Department of Materials Science and Engineering at UCI, working with Enrique J. Lavernia and is now a PhD student in the department, conducting research in the ACRC. Calvin’s research is supported by the UCI Center for Complex and Active Materials (CCAM). The CCAM is a National Science Foundation Materials Research Science and Engineering Center (NSF MRSEC). As a researcher supported by the CCAM, Calvin studies the interfacial science of refractory complex concentrated alloys (RCCAs) and is focused on the role of grain boundary segregation of interstitial impurity elements such as oxygen, carbon, and boron on the embrittlement ductilization of the NbMoTaW RCCA. In his free time, Calvin enjoys cycling, driving, camping, and fly fishing.

Sam Small graduated from the University of Alabama at Birmingham in April with a B.S. in materials science and engineering. He was the president and founder of the Society of Materials Engineers there. His research experience focused on the microstructural evolution of ternary eutectic alloy systems and additive manufacturing of aluminum. He has worked as a carpenter on a construction site, a tutor on campus, and several positions between.

Mahsa Amiri is a Ph.D. student at the Department of Materials and Manufacturing Technology, University of California Irvine (UCI). She obtained her MSc from Sharif University of Technology, Iran.

During the past few years at UCI, Mahsa has been studying mechanisms that control the microstructure and mechanical properties of cold sprayed deposits, with a focus on the effects of the feedstock powder properties including (1) particle size and distribution; (2) surface oxide layer thickness and crystallinity; (3) presence of interstitials; and (4) microstructure of powder.

Recently, she started a new project on the high strain rate properties of selectively laser melted (SLM) materials. She has experimental expertise in microstructural analysis and materials characterization via SEM, HRTEM, STEM, XPS, EBSD, and micro-mechanical in-situ testing.

Her hobbies are swimming, cycling, dining out, watching movies, and hanging out with friends and family.