Investigation of Strain Hardening in NiAl Single Crystals Using Three-Dimensional FEA Models

[+] Author and Article Information
Chulho Yang, Ashok V. Kumar

Department of Mechanical Engineering, University of Florida, Gainesville, FL 32611

J. Eng. Mater. Technol 123(1), 20-27 (Dec 18, 1999) (8 pages) doi:10.1115/1.1286158 History: Received July 07, 1999; Revised December 18, 1999
Copyright © 2001 by ASME
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Grahic Jump Location
(a) Deformed mesh, (b) strain in Y-dir., (c) stress in Y-dir. (case II (b) at 40 percent nominal strain)
Grahic Jump Location
Resolved shear strain versus time (case III (a))
Grahic Jump Location
Resolved shear strain versus time (case III (b))
Grahic Jump Location
Load versus displacement
Grahic Jump Location
(a) Resolved shear strain versus time (case II (b)). (b) Critical resolved shear stress versus time (case II (b)).
Grahic Jump Location
(a) Resolved shear strain versus time (case II (a)). (b) Flow stress versus time (case II (a)).
Grahic Jump Location
(a) Deformed mesh, (b) strain in Y-dir., (c) stress in Y-dir. (case I: 20 percent nominal strain)
Grahic Jump Location
(a) Resolved shear strain versus time (case I). (b) Flow stress versus time (case I).
Grahic Jump Location
Active slips systems of NiAl for loading along [110] orientation
Grahic Jump Location
Experimental load versus elongation (loading in [110] direction)




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