Zobrazeno 1 - 10
of 102
pro vyhledávání: '"Paul G. Allison"'
Autor:
Zackery McClelland, Kyle Dunsford, Brady Williams, Haley Petersen, Keivan Devami, Mark Weaver, J. Brian Jordan, Paul G. Allison
Publikováno v:
Materials, Vol 17, Iss 4, p 910 (2024)
High-entropy alloys (HEAs) are new alloy systems that leverage solid solution strengthening to develop high-strength structural materials. However, HEAs are typically cast alloys, which may suffer from large as-cast grains and entrapped porosity, all
Externí odkaz:
https://doaj.org/article/add36a97a29442139cb6e461251dee48
Autor:
Malcolm B. Williams, Ning Zhu, Nick I. Palya, Jacob B. Hoarston, Martin M. McDonnell, Matthew R. Kelly, Aaron D. Lalonde, Luke N. Brewer, James B. Jordon, Paul G. Allison
Publikováno v:
Metals, Vol 13, Iss 10, p 1663 (2023)
In this research, we explore the preliminary effects of processing conditions using a novel additive manufacturing (AM) process, known as additive friction stir deposition (AFSD), on resulting build direction (BD) mechanical performance. Using the AF
Externí odkaz:
https://doaj.org/article/05d1e27d20474797a890ec34dcabd3a5
Publikováno v:
Metals, Vol 12, Iss 11, p 1879 (2022)
This review paper discusses the formation and propagation of adiabatic shear bands in nickel-based superalloys. The formation of adiabatic shear bands (ASBs) is a unique dynamic phenomenon that typically precedes catastrophic, unpredicted failure in
Externí odkaz:
https://doaj.org/article/4f94790f90b14e2a85bea358758f8019
Autor:
Glen R. Merritt, Malcolm B. Williams, Paul G. Allison, James B. Jordon, Timothy W. Rushing, Christian A. Cousin
Publikováno v:
Journal of Manufacturing and Materials Processing, Vol 6, Iss 5, p 92 (2022)
Additive Friction Stir Deposition (AFSD) is a recent innovation in non-beam-based metal additive manufacturing that achieves layer-by-layer deposition while avoiding the solid-to-liquid phase transformation. AFSD presents numerous benefits over other
Externí odkaz:
https://doaj.org/article/395bccd85e2d46199e40bc5625926283
Publikováno v:
Nanomaterials, Vol 12, Iss 2, p 223 (2022)
The use of carbon nanofibers (CNFs) in cement systems has received significant interest over the last decade due to their nanoscale reinforcing potential. However, despite many reports on the formation of localized CNF clusters, their effect on the c
Externí odkaz:
https://doaj.org/article/cfc0f8b4717840a58449a09310a6b34f
Autor:
Brandon J. Phillips, C. Jacob Williamson, Ryan P. Kinser, J. Brian Jordon, Kevin J. Doherty, Paul G. Allison
Publikováno v:
Materials, Vol 14, Iss 21, p 6732 (2021)
Additive Friction Stir-Deposition (AFS-D) is a transformative, metallic additive manufacturing (AM) process capable of producing near-net shape components with a wide variety of material systems. The solid-state nature of the process permits many of
Externí odkaz:
https://doaj.org/article/020467311400483aa86d55890a5bee97
Autor:
Ning Zhu, Dustin Z. Avery, Ben A. Rutherford, Brandon J. Phillips, Paul G. Allison, J. Brian Jordon, Luke N. Brewer
Publikováno v:
Metals, Vol 11, Iss 11, p 1773 (2021)
This paper examines the impact of oxide coatings on the surfaces of feedstock material used for Additive Friction Stir-Deposition (AFS-D). The AFS-D is a solid-state additive manufacturing process that uses severe plastic deformation and frictional h
Externí odkaz:
https://doaj.org/article/fe7e03cac7dd4634b90cb2381565b505
Autor:
Jonathan L. Priedeman, Brandon J. Phillips, Jessica J. Lopez, Brett E. Tucker Roper, B. Chad Hornbuckle, Kristopher A. Darling, J. Brian Jordon, Paul G. Allison, Gregory B. Thompson
Publikováno v:
Metals, Vol 10, Iss 11, p 1538 (2020)
This work details the additive friction stir-deposition (AFS-D) of copper and evaluation of its microstructure evolution and hardness. During deposition, a surface oxide is formed on the deposit exterior. A very fine porosity is formed at the substra
Externí odkaz:
https://doaj.org/article/a95fb57a6f694be58f7134971787bc7e
Autor:
Ben A. Rutherford, Dustin Z. Avery, Brandon J. Phillips, Harish M. Rao, Kevin J. Doherty, Paul G. Allison, Luke N. Brewer, J. Brian Jordon
Publikováno v:
Metals, Vol 10, Iss 7, p 947 (2020)
This work presents, for the first time, an in-depth investigation of the structure–property–fatigue relationships of an Al-Mg-Si alloy (AA6061) processed via additive friction stir-deposition (AFS-D). As industry focus continues to shift for more
Externí odkaz:
https://doaj.org/article/e3048652ff834dabb9d57037fc41c6b9
Autor:
Abby R. Cisko, James B. Jordon, Dustin Z. Avery, Tian Liu, Luke N. Brewer, Paul G. Allison, Ricolindo L. Carino, Youssef Hammi, Timothy W. Rushing, Lyan Garcia
Publikováno v:
Metals, Vol 9, Iss 3, p 293 (2019)
An extensive experimental and computational investigation of the fatigue behavior of friction stir welding (FSW) of aluminum–lithium alloy (AA2099) is presented. In this study, friction stir butt welds were created by joining AA2099 using two diffe
Externí odkaz:
https://doaj.org/article/d72e787eb6c3400d952a252a31a8c385