Gregory B. Olson
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View article: A generalized mechanical blocking criterion for the columnar-to-equiaxed transition during additive manufacturing
A generalized mechanical blocking criterion for the columnar-to-equiaxed transition during additive manufacturing Open
We present a fully general model for the columnar-to-equiaxed transition (CET) that extends the classical mechanical blocking models to completely arbitrary nucleation-undercooling distributions and dendrite growth laws. The general approa…
View article: A Grain Boundary Embrittlement Genome for Substitutional Cubic Alloys
A Grain Boundary Embrittlement Genome for Substitutional Cubic Alloys Open
Grain boundary chemistry plays a critical role for the properties of metals and alloys, yet there is a lack of consistent datasets for alloy design and development. With the advent of artificial intelligence and machine learning in materia…
View article: Grain Boundary Segregation and Embrittlement of Aluminum Binary Alloys from First Principles
Grain Boundary Segregation and Embrittlement of Aluminum Binary Alloys from First Principles Open
Grain boundary segregation controls properties of polycrystalline materials such as their susceptibility to intergranular cracking. It is of interest to engineer alloy chemistry to enhance grain boundary cohesion to prevent intergranular f…
View article: Optimizing Transformation-Induced Plasticity to Resist Microvoid Softening
Optimizing Transformation-Induced Plasticity to Resist Microvoid Softening Open
Many high-performance steels that are critical for energy-efficient, lightweight designs rely on transformation-induced plasticity (TRIP) to achieve superior combinations of strength and ductility/toughness. Further development of these al…
View article: Case hardenable nickel-cobalt steel
Case hardenable nickel-cobalt steel Open
An advanced secondary hardening carburized Ni--Co steel achieves an improved case hardness of about 68-69 Rc together with nominal core hardness of about 50 Rc.
View article: Dataset - Low-hysteresis shape-memory ceramics designed by multimode modelling
Dataset - Low-hysteresis shape-memory ceramics designed by multimode modelling Open
Accompanying Dataset for the article "Low-hysteresis shape-memory ceramics designed by multimode modelling". The dataset contains two .csv files, one each for tetragonal and monoclinic phase, containing lattice parameter data used to train…
View article: Dataset - Low-hysteresis shape-memory ceramics designed by multimode modelling
Dataset - Low-hysteresis shape-memory ceramics designed by multimode modelling Open
Accompanying Dataset for the article "Low-hysteresis shape-memory ceramics designed by multimode modelling". The dataset contains two .csv files, one each for tetragonal and monoclinic phase, containing lattice parameter data used to train…
View article: Assessing The Completeness of Periodontal Disease Documentation in The EHR: A First Step in Measuring The Quality of Care
Assessing The Completeness of Periodontal Disease Documentation in The EHR: A First Step in Measuring The Quality of Care Open
Background: Our objective was to measure the proportion of patients for which comprehensive periodontal charting, periodontal disease risk factors (diabetes status, tobacco use, and oral home care compliance), and periodontal diagnoses wer…
View article: Role of grain constraint on the martensitic transformation in ceria‐doped zirconia
Role of grain constraint on the martensitic transformation in ceria‐doped zirconia Open
Zirconia polycrystals have historically suffered from catastrophic cracking during the tetragonal‐monoclinic martensitic transformation. Recently, transformation‐induced cracking has been avoided by doping to achieve crystallographic compa…
View article: Communication—Dissolution and Passivation of a Ni-Cr-Fe-Ru-Mo-W High Entropy Alloy by Elementally Resolved Electrochemistry
Communication—Dissolution and Passivation of a Ni-Cr-Fe-Ru-Mo-W High Entropy Alloy by Elementally Resolved Electrochemistry Open
The formation and dissolution of the passive film on a novel NiCrFeRuMoW high entropy alloy in H 2 SO 4 was measured with atomic emission spectroelectrochemistry. Passivation involved Cr and Ru enrichment, whether passivation was achieved …
View article: TRIP Titanium Alloy Design
TRIP Titanium Alloy Design Open
Building on successful development experience of transformation induced plasticity (TRIP) steels, an analogous concept was taken to design high performance titanium alloys. This article describes a computational design framework of novel n…
View article: Data-Driven Prediction of Mechanical Properties in Support of Rapid Certification of Additively Manufactured Alloys
Data-Driven Prediction of Mechanical Properties in Support of Rapid Certification of Additively Manufactured Alloys Open
Predicting the mechanical properties of additively manufactured parts is often a tedious process, requiring the integration of multiple stand-alone and expensive simulations. Furthermore, as properties are highly location-dep... | Find, re…
View article: Prediction of seebeck coefficient for compounds without restriction to fixed stoichiometry: A machine learning approach
Prediction of seebeck coefficient for compounds without restriction to fixed stoichiometry: A machine learning approach Open
The regression model‐based tool is developed for predicting the Seebeck coefficient of crystalline materials in the temperature range from 300 K to 1000 K. The tool accounts for the single crystal versus polycrystalline nature of the compo…
View article: Effect of solution treatment on spinodal decomposition during aging of an Fe-46.5 at.% Cr alloy
Effect of solution treatment on spinodal decomposition during aging of an Fe-46.5 at.% Cr alloy Open
Spinodal decomposition is a key phase transition in advanced materials and a significant effort is paid to the quantitative modeling of the phenomenon. The initial materials condition is often assumed to be random during modeling, but this…