A.D. Rollett (PhD)

Rollett's research focuses on the science of additive manufacturing, 3D printed heat exchangers, microstructural evolution and microstructure-property relationships in 3D. Interests include microstructure control in 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. Important recent results include relating fatigue performance in printed Ti-6Al-4V to LPBF parameters, machine learning to predict porosity development with synchrotron visualization as ground truth, development of a spectral approach to eigenstrain problems, validation of the 3D elasto-viscoplastic FFT code against synchrotron x-ray diffraction data, prediction of solidification microstructure, the appearance of new grains during grain growth, and grain size stabilization.  

He holds the rank of University Professor and is the U.S. Steel Professor of Metallurgical Engineering and Materials Science at Carnegie Mellon University. He is the PI and co-Director of a NASA STRI on Institute for Model-Based Qualification & Certification of Additive Manufacturing (IMQCAM). He is also a co-Director of CMU’s NextManufacturing Center that is dedicated to advancing manufacturing especially through 3D printing of metals.  Recent recognition includes a Francqui Visiting Professor (Belgium) and the ASM Gold Medal. He has over 340 peer-reviewed publications. He is a Fellow of ASM International, the Institute of Physics (UK) and TMS.

Rollett also has a strong avocation in music as an active singer and organist. He was a choral scholar at Clare College, Cambridge, and holds a diploma in organ teaching from the Royal College of Music (London).