Affiliation:
1. Institute of Metal Research
2. National Institute for Materials Science
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.
Publisher
Trans Tech Publications, Ltd.
Reference8 articles.
1. Demura M, Suga Y, Umezawa O, Kishida K, George EP and Hirano T. Intermet 2001; 9: 157.
2. Demura M, Kishida K, Suga Y and Hirano T. Metall Trans A 2002; 33A: 2607.
3. Cui CY, Demura M, Hasegawa K, Ohashi T, Kishida K, and Hirano T. Scripta Mater. 2005; 53: 1339.
4. Demura M, Kishida K, Suga Y, Takanashi M and Hirano T. Scripta Mater. 2002; 47: 267.
5. Howard K and Dana M. ASM Handbook, vol. 8, Mechanical Testing and Evaluation Ohio, USA: ASM International, 1990, 106.