Notch Fracture Behavior of Cold-Rolled Ni₃Al Foil

Abstract:

Notch effect on the fracture behavior of the Ni3Al foils has been investigated as a function of notch radius and depth. Tensile tests along the rolling direction showed that notch weakening occurred with introduce of notch. The effective stress concentration factor (ke) was much lower than the theoretical stress concentration factor (Kt), which was due to the local plastic deformation at the notch root. Cracks initiated along the shear band in the RD tension.

• Periodical: Advanced Materials Research (Volumes 602-604)
• Pages: 2201-2204
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.602-604.2201
• Online since: December 2012
• Authors: Chuan Yong Cui, Toshiyuki Hirano
• Keywords: Crack Initiation, Local Deformation, Ni₃Al Foil, Notch

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