Research Group for

Weldability and Weld Cracking Phenomena

Dr. Carolin Fink – Welding Engineering Program

About Us

Our research group focuses on weldability evaluation and fundamentals of materials degradation and defect formation in welds. Weldability is a key factor for the manufacturing of structural components. Advanced metallic materials have specifically tailored properties that are attained by complex thermomechanical processing and carefully controlled alloying additions. Due to metallurgical changes and thermomechanical effects that occur during the welding process, weld failures and loss of properties are frequently experienced. This can be highly deleterious to fabrication and service-performance of welded components, limiting the implementation of advanced metallic materials. Materials degradation and weld cracking is a result of metallurgical as well as thermomechanical aspects influenced by material properties, welding process and structural design. Using a variety of materials characterization and experimental and modeling techniques, our research group aims to achieve a fundamental understanding of the metallurgical processes, material properties and failure mechanisms in welds.

Research Group, September 2018 (left to right): Alec Martin (Graduate Student), Louie Aguilar (Graduate Student), Mike Stotts (Graduate Student), Dean Sage (Graduate Student), Luke Johnson (Graduate Student), Tom Filbert (Undergraduate Researcher), Emily Flitcraft (Undergraduate Researcher), and Assist. Prof. Carolin Fink. Not in the picture: Daniella Morris (Undergraduate Researcher), Eric Kennedy (Undergraduate Researcher), James Hansen (Undergraduate Researcher), and Thomas Estep (Undergraduate Researcher).

Research Highlights

Short Bio – Dr. Carolin Fink

Dr. Fink is an Assistant Professor in the Department of Materials Science and Engineering in the College of Engineering at The Ohio State University. She started this position in January 2017 as the first female faculty member in the Welding Engineering Program. Dr. Fink received her Diploma in Mechanical Engineering and Business Administration from Otto-von-Guericke University Magdeburg, Germany in 2009, and her Dr.-Ing. (Ph.D.) in Mechanical Engineering from the same institution in 2016. During her doctoral studies, she developed expertise in welding metallurgy and weldability of nickel-base alloys, stainless steels, and high-strength-low-alloy steels. She was awarded the Henry Granjon Prize of the International Institute of Welding (IIW) in recognition of her Ph.D. research on ductility-dip cracking in nickel-base alloys. She is also certified as an International Welding Engineer (IWE). Dr. Fink came to Ohio State as a postdoctoral researcher in 2015. She expanded her studies to include extensive metallography with optical and electron microscopy, as well as computational materials and process modeling. Her current research interests include materials degradation and weld cracking phenomena, weldability assessment of new materials, filler metal development, and rapid solidification metallurgy in advanced manufacturing processes.