Stress-Induced Martensitic Transformation in the Crack Tip Region of a NiTi Alloy
β Scribed by A. Falvo; F. Furgiuele; A. Leonardi; C. Maletta
- Book ID
- 107458422
- Publisher
- Springer US
- Year
- 2009
- Tongue
- English
- Weight
- 648 KB
- Volume
- 18
- Category
- Article
- ISSN
- 1059-9495
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AbstractΓThe thermomechanical behaviour of stress-induced martensitic transformation in an equiatomic NiTi alloy was investigated with respect to dierent deformation modes including uniaxial tension, compression and shear of plate specimens at dierent temperatures above the M s temperature. Results
The Ni-Mn-Ga shape memory ferromagnetic shape memory alloys (FSMAs) are prone to fracture during thermal cycling. The present research shows that the primary reason for the thermally induced fracture of Ni-Mn-Ga FSMAs is the increase in the crack tip stress-intensity factor (SIF) due to stress redis