Investigation of localized deformation in NiAl single crystals
Article Abstract:
Research was conducted to examine the stages of localized deformation of nickel-aluminum crystals using finite element analysis. In this study, experimental data were compared with results derived from numerical simulations to identify the hardening attributes and constitutive parameters of active slip systems. Results revealed significant work hardening in the {100}<001> slip system and little hardening in the {100}<001> plane.
Publication Name: Journal of Engineering Materials and Technology
Subject: Science and technology
ISSN: 0094-4289
Year: 1998
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Chip formation in cellular materials
Article Abstract:
The basic mechanisms that are contributing to the chip formation in cellular material is investigated by using a simplified plane strain finite element model, assuming isotropic material behavior and frictionless contact. The process of chip formation is understood by the interaction of a plastically deforming beam and a process zone, where a crack opens and the chip separates from the base material.
Publication Name: Journal of Engineering Materials and Technology
Subject: Science and technology
ISSN: 0094-4289
Year: 2003
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Investigation of strain hardening in NiAl single crystals using three-dimensional FEA models
Article Abstract:
Single crystals of NiAl are very ductile at intermediate temperatures and were observed to exhibit high strain hardening rates at large strains when loaded in the orientation. The hardening characteristics of NiAl single crystals are studied using a hardening law that is applicable to multiple slip and three-dimensional deformation.
Publication Name: Journal of Engineering Materials and Technology
Subject: Science and technology
ISSN: 0094-4289
Year: 2001
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