Zobrazeno 1 - 10
of 78
pro vyhledávání: '"Paul A. Shade"'
Autor:
Michael A. Groeber, Edwin J. Schwalbach, Andrew Chihpin Chuang, Paul A. Shade, William D. Musinski, Jun-Sang Park
Publikováno v:
Integrating Materials and Manufacturing Innovation. 10:525-541
A machine component fabricated by additive manufacturing (AM) of metal powders often possesses steep residual stress gradients with significant magnitudes due to large temperature gradients that transpire within a localized area during fabrication. T
Autor:
Arunima Banerjee, Jeff Rossin, Mo-Rigen He, William D. Musinski, Paul A. Shade, Marie E. Cox, Edwin J. Schwalbach, Tresa Pollock, Kevin J. Hemker
Publikováno v:
Materials Science and Engineering: A. 870:144826
Autor:
Megna N. Shah, David B. Menasche, Peter Kenesei, Jun-Sang Park, Sean P. Donegan, Paul A. Shade, Mark Obstalecki, William D. Musinski, Joel V. Bernier
Publikováno v:
Integrating Materials and Manufacturing Innovation. 10:338-347
We describe 3D characterization of an additively manufactured Inconel 625 nickel-base superalloy specimen conducted during a uniaxial tension test using a suite of nondestructive x-ray techniques. High-energy diffraction microscopy in both near- and
Autor:
Megna N. Shah, Sean P. Donegan, Michael G. Chapman, J. Michael Scott, David B. Menasche, Paul A. Shade, Michael D. Uchic
Publikováno v:
Integrating Materials and Manufacturing Innovation. 10:129-141
High-energy diffraction microscopy (HEDM) in-situ mechanical testing experiments offer unique insight into the evolving deformation state within polycrystalline materials. These experiments rely on a sophisticated analysis of the diffraction data to
Publikováno v:
Scripta Materialia. 192:37-42
Elastic micromechanical fields are tracked for a nickel-based superalloy polycrystal via high energy X-ray diffraction microscopy (HEDM) and corresponding intragranular deformation metrics are determined with peak broadening analysis during cyclic hi
Autor:
Michael D. Sangid, Paul A. Shade, Jun-Sang Park, John Rotella, Diwakar Naragani, Peter Kenesei
Publikováno v:
Acta Materialia. 201:36-54
Polycrystalline alloys are used pervasively across structural applications contingent upon extensive experimental testing. A statistically representative number of tests are necessary to expose the variability in the material's performance, as a resu
Autor:
Craig Przybyla, Paul A. Shade, Andrew J Ritchey, Jun-Sang Park, Rodney W. Trice, R. B. Pipes, Michael W. Knauf
Publikováno v:
Journal of the American Ceramic Society. 104:1424-1435
Publikováno v:
Journal of Applied Crystallography. 53:107-116
The accuracy of the near-field high-energy diffraction microscopy (nf-HEDM) technique is evaluated by directly comparing an nf-HEDM reconstructed microstructure with an electron backscatter diffraction (EBSD) characterization of the same microstructu
Publikováno v:
Acta Materialia. 179:342-359
The small fatigue crack (SFC) growth regime in polycrystalline alloys is complex due to the heterogeneity in the local micromechanical fields, which result in high variability in crack propagation directions and growth rates. In this study, we employ
Autor:
Mark Obstalecki, Darren C. Pagan, E. J. Payton, Paul A. Shade, F. Zhang, N. C. Levkulich, Jaimie Tiley, Adam L. Pilchak, S. L. Semiatin, J. M. Shank
Publikováno v:
Metallurgical and Materials Transactions A. 50:2356-2370
The kinetics of the dissolution of the equiaxed alpha phase into the beta matrix in Ti-6Al-4V were established and modeled for both isothermal (constant temperature) and transient/continuous heating conditions. For the isothermal experiments, samples