Expertise

Topics:  Additive Manufacturing, Materials Science, Digital Twins, Manufacturing & Materials Microstructure, Qualification & Certification, Computational Materials Science, Texture and Anisotropy, Microstructural Evolution

Industries: Manufacturing

Rollett's research focuses on microstructural evolution and microstructure-property relationships in 3D, using both experiments and simulations. Interests include 3D printing of metals, materials for energy conversion systems, strength of materials, constitutive relations, microstructure, texture, anisotropy, grain growth, recrystallization, formability, extreme value statistics and stereology. Relevant techniques highlight spectral methods in micro-mechanics, Dynamic X-ray Radiography and High Energy Diffraction Microscopy. Important recent results include definition of process windows in 3D printing through characterization of porosity and fatigue, 3D comparisons of experiment and simulation for plastic deformation in metals, the appearance of new grains during grain growth, and grain size stabilization. He has been a Professor of Materials Science & Engineering at Carnegie Mellon University since 1995 and before that was with the Los Alamos National Laboratory. He is the US Steel Professor of Metallurgical Engineering & Materials Science and holds the rank of University Professor. He is the co-Director of CMU’s NextManufacturing Center that is dedicated to advancing manufacturing especially through 3D printing. He is the PI and co-Director of the Institute for Model-based Qualification & Certification of metals Additive Manufacturing (IMQCAM). His most recent national award is the ASM Gold Medal in 2024. He has over 350 peer-reviewed publications and an h-index approaching 100.

Media Experience

NASA Aeronautics Selects Three University Teams for Research Help  — NASA
The JHU-CMU partnership is led by the University’s Somnath Ghosh, Michael G. Callas chair professor in the Department of Civil and Systems Engineering and director of the Computational Mechanics Research Laboratory, and CMU’s Anthony Rollett, a professor in the Department of Materials Science and Engineering and co-director of the Next Manufacturing Center.

CMU To Lead NASA Space Technology Research Institute  — Carnegie Mellon University
"The STRI affords us an opportunity for a major collaboration through which we can construct the models that our partners at NASA very much need." — Tony Rollett

A route for avoiding defects during additive manufacturing  — CMU Engineering News
“The real practical value of this research is that we can be precise about controlling the machines to avoid this problem,” says Anthony Rollett, a professor of materials science and engineeringOpens in new window and a lead co-author of the paper.

Department of Energy Awards Rollett $2.4 Million To 3D-Print Heat Exchangers  — Carnegie Mellon University
The project, led by Anthony Rollett, a Carnegie Mellon University professor of materials science and engineering, is one of 18 projects being supported by the Department of Energy for high-temperature materials and is part of the High Intensity Thermal Exchange through Materials and Manufacturing Processes program.

Carnegie Mellon University and Argonne National Laboratory Unlock Keyhole Phenomenon in Metal 3D Printing  — 3D Printing Industry
Anthony Rollett, a co-author of the paper and Professor of Materials Science and Engineering at Carnegie Mellon University, said, “The research in this paper will translate into better quality control and better control of working with the machines.”