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Dislocation Processes and Deformation Behavior in <001>-Oriented FeX-Ni60–X-Al40 Single Crystals
Ames Laboratory Conference Papers, Posters, and Presentations
  • P. S. Brenner, Ohio State University
  • R. Srinivasan, Ohio State University
  • R. D. Noebe, National Aeronautics and Space Administration
  • Thomas A. Lograsso, Iowa State University
  • M. J. Mills, Ohio State University
Document Type
Conference Proceeding
MRS Fall Meeting & Exhibit
Publication Date
(42.3584308, -71.0597732)
The mechanical properties and dislocation microstructure of single crystals with a range of compositions within the Fex-Ni60–x-Al40 pseudobinary system have been investigated, with the purpose of bridging the behavior from FeAl to NiAl. Experiments are focused on the compression testing of <001> oriented single crystals with compositions where x = 10, 20, 30, 40, and 50 (in atomic percent). Observations of a<111> dislocation morphologies at room temperature and both a<111> and non-a<111> dislocation activity at elevated temperatures are reported and discussed. Measurements of the yield strength, elastic modulus and strain hardening rates are reported, and the variation of strength with composition is correlated with dislocation dissociation and overall dislocation morphology.

This article is from MRS Proceedings 646 (2000): N6.1.1, doi:10.1557/PROC-646-N6.1.1.

Copyright Owner
Materials Research Society
Citation Information
P. S. Brenner, R. Srinivasan, R. D. Noebe, Thomas A. Lograsso, et al.. "Dislocation Processes and Deformation Behavior in <001>-Oriented FeX-Ni60–X-Al40 Single Crystals" Boston, MA(2000)
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