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Timothy M. Smith

NASA Glenn Research Center

21000 Brookpark Rd

Cleveland, OH 44135

United States

  • NASA Glenn Research Center

SCHOLARLY PAPERS

9

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1,292

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Scholarly Papers (9)

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1.

Grx-810: High-Temperature Behavior, Size Effects, and Deformation Mechanisms

Number of pages: 29 Posted: 01 Jan 2025
Mehrdad Pourjam, Gabriel Demeneghi, Daniel June, Paul Gradl, Timothy M. Smith, Sammy Tin and Kavan Hazeli
University of Arizona, NASA Marshall Space Flight Center, University of Arizona, NASA Marshall Space Flight Center, NASA Glenn Research Center, University of Arizona and University of Arizona
Downloads 314 (240,877)

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GRX-810, High Temperature behavior, Deformation Mechanisms

2.

Grx-810: High-Temperature Behavior, Deformation Mechanisms, and Size Effects

Downloads 280 (272,209)

Grx-810: High-Temperature Behavior, Deformation Mechanisms, and Size Effects

Number of pages: 29 Posted: 12 Feb 2025
Mehrdad Pourjam, Gabriel Demeneghi, Daniel June, Paul Gradl, Timothy M. Smith, Sammy Tin and Kavan Hazeli
University of Arizona, NASA Marshall Space Flight Center, University of Arizona, NASA Marshall Space Flight Center, NASA Glenn Research Center, University of Arizona and University of Arizona
Downloads 189 (401,791)

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GRX-810, Multi-Principal Element Alloys, High-Temperature Properties, Deformation Mechanisms

Grx-810: High-Temperature Behavior, Deformation Mechanisms, and Size Effects

Number of pages: 29 Posted: 07 Apr 2025
Mehrdad Pourjam, Gabriel Demeneghi, Daniel June, Paul Gradl, Timothy M. Smith, Sammy Tin and Kavan Hazeli
University of Arizona, NASA Marshall Space Flight Center, University of Arizona, NASA Marshall Space Flight Center, NASA Glenn Research Center, University of Arizona and University of Arizona
Downloads 49 (1,095,444)

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GRX-810, Multi-Principal Element Alloys, High-Temperature Properties, Deformation Mechanisms

Grx-810: High-Temperature Behavior, Deformation Mechanisms, and Size Effects

Number of pages: 29 Posted: 07 Apr 2025
Mehrdad Pourjam, Gabriel Demeneghi, Daniel June, Paul Gradl, Timothy M. Smith, Sammy Tin and Kavan Hazeli
University of Arizona, NASA Marshall Space Flight Center, University of Arizona, NASA Marshall Space Flight Center, NASA Glenn Research Center, University of Arizona and University of Arizona
Downloads 42 (1,183,247)

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GRX-810, Multi-Principal Element Alloys, High-Temperature Properties, Deformation Mechanisms

3.

Surface Enhancement Post Processing and Characterization of Laser Powder Bed Fusion Grx-810 Alloy

Number of pages: 37 Posted: 27 Aug 2024
Jason Sheth, Hallie L. Collopy, Paul Gradl, Zach Taylor, Colton Katsarelis and Timothy M. Smith
NASA Marshall Space Flight Center, NASA Marshall Space Flight Center, NASA Marshall Space Flight Center, NASA Marshall Space Flight Center, NASA Marshall Space Flight Center and NASA Glenn Research Center
Downloads 198 (384,172)

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Additive Manufacturing, Surface Texture, Oxide Dispersion Strengthened, Chemical Polishing, Electropolishing, Surface Enhancement Post Processing

4.

Effect of Stacking Fault Segregation and Local Phase Transformations on Creep Strength in Ni-Base Superalloys

Number of pages: 36 Posted: 29 Mar 2019
Timothy M. Smith, B. S. Good, T. P. Gabb, B. D. Esser, A. J. Egan, L. J. Evans, D. W. McComb and M. J. Mills
NASA Glenn Research Center, NASA Glenn Research Center, NASA Glenn Research Center, Ohio State University (OSU) - Center for Electron Microscopy and Analysis, Ohio State University (OSU) - Center for Electron Microscopy and Analysis, NASA Glenn Research Center, Ohio State University (OSU) - Center for Electron Microscopy and Analysis and Ohio State University (OSU) - Center for Electron Microscopy and Analysis
Downloads 138 (530,816)

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Phase Transformation Strengthening, Creep, STEM, EDS, Superalloys, Stacking fault Segregation

5.

Process Defects Knowledge Modeling in Laser Powder Bed Fusion Additive Manufacturing: An Ontological Framework

Number of pages: 14 Posted: 13 Mar 2023
Nazmul Hasan, Md Habibor Rahman, Andrew Wessman, Timothy M. Smith and Mohammed Shafae
University of Arizona - Department of Systems & Industrial Engineering (SIE), University of Arizona - Department of Systems & Industrial Engineering (SIE), University of Arizona - Department of Materials Science and Engineering, NASA Glenn Research Center and University of Arizona - Department of Systems & Industrial Engineering (SIE)
Downloads 123 (584,619)

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Additive Manufacturing, 3D Printing, Laser Powder Bed Fusion, Knowledge Representation and Modeling, Ontology, Defects, Causal Factors

6.

Dislocation-Assisted Diffusion-Mediated Atomic Reshuffling in the Kolbe Mechanism for Micro-Twinning in Ni-Based Superalloys from Molecular Dynamics Simulation

Number of pages: 7 Posted: 18 Jan 2023
Valery V. Borovikov, Mikhail I. Mendelev, Timothy M. Smith and John W. Lawson
NASA Ames Research Center - KBR, NASA Ames Research Center - Intelligent Systems Division, NASA Glenn Research Center and NASA Ames Research Center - Intelligent Systems Division
Downloads 105 (664,543)

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Ni-based superalloys, creep deformation mechanisms, micro-twinning, atomistic simulation

7.

Yield Surface Characterization of GRX-810: Linking Texture,  Microstructure, and Anisotropic Behavior

Number of pages: 30 Posted: 04 Dec 2025
Mehrdad Pourjam, Gabriel Demeneghi, Hallie L. Collopy, Paul Gradl, Timothy M. Smith and Kavan Hazeli
University of Arizona, NASA Marshall Space Flight Center, NASA Marshall Space Flight Center, NASA Marshall Space Flight Center, NASA Glenn Research Center and University of Arizona
Downloads 68 (899,324)

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GRX-810, Multi-Principal Element Alloy, Multiaxial loading, Yield surface, anisotropy

8.

Stability of High Energy Superlattice Faults in Ni-Based Superalloys from Atomistic Simulations

Number of pages: 13 Posted: 04 Sep 2024
Valery V. Borovikov, Mikhail I. Mendelev, Timothy M. Smith and John W. Lawson
NASA Ames Research Center - KBR, NASA Ames Research Center - Intelligent Systems Division, NASA Glenn Research Center and NASA Ames Research Center - Intelligent Systems Division
Downloads 46 (1,109,210)

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Ni-based superalloys, high energy superlattice faults, spontaneous transformations, effects of alloying elements, atomistic modeling

9.

Influence of Melt Pool Overlap on Inclusion Entrapment and Dispersoid Characteristics in Oxide Dispersion-Strengthened Ni-20Cr Fabricated by Powder Bed Fusion - Laser Beam

Number of pages: 35 Posted: 23 Apr 2026
Nathan A. Wassermann, Matthew Luebbe, Fan Zhang, Christopher A. Kantzos, Timothy M. Smith, Alan McGaughey and Sneha Narra
Carnegie Mellon University, Missouri University of Science and Technology, National Institute of Standards and Technology (NIST) - Materials Measurement Science Division, NASA Glenn Research Center, NASA Glenn Research Center, Carnegie Mellon University and Carnegie Mellon University - College of Engineering
Downloads 20 (1,459,862)

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Oxide Dispersion Strengthening (ODS), Powder Bed Fusion - Laser Beam (PBF-LB), Oxide Inclusions, X-Ray Scattering, Nickel Alloy