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Andrew Ezekiel Wessman
Researcher at University of Arizona
Publications - 31
Citations - 598
Andrew Ezekiel Wessman is an academic researcher from University of Arizona. The author has contributed to research in topics: Superalloy & Creep. The author has an hindex of 9, co-authored 28 publications receiving 352 citations. Previous affiliations of Andrew Ezekiel Wessman include GE Aviation & General Electric.
Papers
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Journal ArticleDOI
Phase transformation strengthening of high-temperature superalloys
Timothy M. Smith,Bryan D. Esser,Nikolas Antolin,Anna Carlsson,Robert E.A. Williams,Andrew Ezekiel Wessman,Timothy Hanlon,Hamish L. Fraser,Wolfgang Windl,David W. McComb,Michael J. Mills +10 more
TL;DR: A new ‘phase-transformation strengthening' mechanism that resists high-temperature creep deformation in nickel-based superalloys, where specific alloying elements inhibit the deleterious deformation mode of nanotwinning at temperatures above 700 °C is introduced.
Journal ArticleDOI
Segregation and η phase formation along stacking faults during creep at intermediate temperatures in a Ni-based superalloy
Timothy M. Smith,Bryan D. Esser,Nikolas Antolin,Gopal B. Viswanathan,Timothy Hanlon,Andrew Ezekiel Wessman,David Paul Mourer,Wolfgang Windl,David W. McComb,Michael J. Mills +9 more
TL;DR: In this paper, the local compositional and structural changes occurring in association with stacking faults in a Ni-base superalloy are characterized and related to the possible rate-controlling processes during creep deformation at intermediate temperatures.
Journal ArticleDOI
Fatigue deformation in a polycrystalline nickel base superalloy at intermediate and high temperature: Competing failure modes
Jean Charles Stinville,Étienne Martin,M. Karadge,S. Ismonov,Monica Soare,Timothy Hanlon,Sairam Sundaram,McLean P. Echlin,Patrick G. Callahan,William C. Lenthe,V. M. Miller,V. M. Miller,Jiashi Miao,Andrew Ezekiel Wessman,Rebecca Finlay,Adrian Loghin,Judson Sloan Marte,Tresa M. Pollock +17 more
TL;DR: In this paper, the microstructural configurations that favor early strain localization and fatigue crack initiation at intermediate and high temperature (400°C-650°C) have been investigated using novel experimental techniques, including high resolution digital image correlation and transmission scanning electron microscopy.
Patent
Nickel-base superalloys and components formed thereof
Kenneth Rees Bain,David Paul Mourer,Richard DiDomizio,Timothy Hanlon,Laurent Cretegny,Andrew Ezekiel Wessman +5 more
TL;DR: The gamma-prime nickel-base superalloy as mentioned in this paper is one of the most widely used superalloys for high-temperature dwell properties, including creep and hold time fatigue crack growth behavior.
Journal ArticleDOI
Competing Modes for Crack Initiation from Non-metallic Inclusions and Intrinsic Microstructural Features During Fatigue in a Polycrystalline Nickel-Based Superalloy
Jean Charles Stinville,Étienne Martin,M. Karadge,S. Ismonov,Monica Soare,Timothy Hanlon,Sairam Sundaram,McLean P. Echlin,Patrick G. Callahan,William C. Lenthe,Jiashi Miao,Andrew Ezekiel Wessman,Rebecca Finlay,Adrian Loghin,Judson Sloan Marte,Tresa M. Pollock +15 more
TL;DR: In this article, the microstructural configurations that favor early strain localization and fatigue crack initiation at high temperature from 400°C to 650°C were investigated on a Rene 88DT polycrystalline nickel-based superalloy.